{"title":"Watts RO \u0026 OneFlow Replacement Filters","description":"\u003cp\u003eReplacement filters, membranes and annual kits for Watts and Watts Premier drinking water systems, plus cartridges for the Watts OneFlow Plus whole-house system.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eWatts Premier RO Pure \/ RO Pure Plus:\u003c\/strong\u003e push-button filter kits (105311, 105351, 105341, 105381) and 50 GPD membrane 105331\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWatts 5-stage and 4-stage RO (W-525 \/ W-415):\u003c\/strong\u003e compatible replacement filter sets\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWatts Premier 4-stage (WP-4V, RO-TFM-4SV, RO-TFM-5SV):\u003c\/strong\u003e annual kits and membranes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWatts Kwik-Change RO (WQC4RO11 \/ WQC4RO13):\u003c\/strong\u003e sediment, carbon, GAC cartridges and annual bundles\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWatts QT Quick Twist RO:\u003c\/strong\u003e filters with 50 GPD membrane\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWatts OneFlow Plus:\u003c\/strong\u003e OFPRFC radial flow carbon cartridge, OFPSP TAC cartridge and OFPCOM combo pack\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eWatts Kwik-Change and Watts Premier filters are not interchangeable. Check the model label on your system before ordering, or call (714) 541-6600 and we'll match it for you.\u003c\/p\u003e\u003c!--ipwsys--\u003e\u003cp\u003e\u003cstrong\u003eStage-by-stage fit guides:\u003c\/strong\u003e \u003ca href=\"\/pages\/replacement-filters-watts-ro-tfm-5sv\"\u003eRO-TFM-5SV \/ WP5-50\u003c\/a\u003e · \u003ca href=\"\/pages\/replacement-filters-watts-560032\"\u003ePremier 560032\u003c\/a\u003e · \u003ca href=\"\/pages\/replacement-filters-watts-w525\"\u003eW-525\u003c\/a\u003e · \u003ca href=\"\/pages\/replacement-filters-watts-w415\"\u003eW-415\u003c\/a\u003e · \u003ca href=\"\/pages\/replacement-filters-watts-ropure\"\u003ePremier RO-Pure\u003c\/a\u003e · \u003ca href=\"\/pages\/replacement-filters-watts-wqc4ro11\"\u003eKwik-Change WQC4RO (11 in)\u003c\/a\u003e · \u003ca href=\"\/pages\/replacement-filters-watts-wqc4ro13\"\u003eKwik-Change WQC4RO13 (13\")\u003c\/a\u003e · \u003ca href=\"\/pages\/replacement-filters-watts-wqcfu-t-11\"\u003eKwik-Change UF WQCFU-T-11\u003c\/a\u003e · \u003ca href=\"\/pages\/replacement-filters-watts-premier-uf3\"\u003ePremier UF-3 (Filter-Pure)\u003c\/a\u003e · \u003ca href=\"\/pages\/replacement-filters-watts-premier-wp-4v\"\u003ePremier WP-4V\u003c\/a\u003e · \u003ca href=\"\/pages\/replacement-filters-watts-premier-oneflow-plus-ofpsp\"\u003ePremier OneFlow Plus OFPSP\u003c\/a\u003e · \u003ca href=\"\/pages\/replacement-filters-watts-oneflow-of210-1-of110-1\"\u003eOneFlow OF210-1 \/ OF110-1\u003c\/a\u003e · \u003ca href=\"\/pages\/replacement-filters-watts-premier-wh-ld\"\u003ePremier WH-LD\u003c\/a\u003e · \u003ca href=\"\/pages\/replacement-filters-watts-flowmatic-flowmatic-big-blue-housing\"\u003eFlowmatic Big Blue Housing\u003c\/a\u003e. See \u003ca href=\"\/pages\/replacement-filters-by-system\"\u003eall 154 systems\u003c\/a\u003e.\u003c\/p\u003e\u003c!--\/ipwsys--\u003e","products":[{"product_id":"watts-wqcm11-50-11-kwik-change-ro-50-gpd-membrane","title":"Watts (WQCM) Kwik-Change Replacement Reverse Osmosis Membrane (Not for Premier)","description":"\n\u003clink href=\"https:\/\/fonts.googleapis.com\/css2?family=DM+Serif+Display:ital@0;1\u0026amp;family=DM+Sans:wght@300;400;500;600\u0026amp;display=swap\" rel=\"stylesheet\"\u003e\n\u003cstyle\u003e\n .ro-wrap {\n --deep:#0a1628;--ocean:#0f3460;--blue:#1565c0;--sky:#2196f3;--aqua:#4dd0e1;\n --white:#ffffff;--offwhite:#f2f7fc;--slate:#dce8f5;--text:#0d1f38;--muted:#4a6280;\n --gold:#f59e0b;--radius:12px;\n font-family:'DM Sans',sans-serif;color:var(--text);line-height:1.6;-webkit-font-smoothing:antialiased;overflow-wrap:break-word;word-break:break-word;min-width:0;\n }\n .ro-wrap .ro-hero{background:linear-gradient(135deg,var(--deep) 0%,var(--ocean) 50%,#1a5276 100%);color:var(--white);padding:52px 40px 44px;position:relative;overflow:hidden;border-radius:var(--radius) var(--radius) 0 0;}\n .ro-wrap .ro-hero::before{content:'';position:absolute;inset:0;background:radial-gradient(ellipse 70% 55% at 95% 45%,rgba(77,208,225,.15) 0%,transparent 65%),radial-gradient(ellipse 40% 40% at 5% 80%,rgba(255,255,255,.05) 0%,transparent 60%);pointer-events:none;}\n .ro-wrap .ro-eyebrow{font-size:13px !important;font-weight:600;letter-spacing:.18em;text-transform:uppercase;color:var(--aqua);margin-bottom:12px;}\n .ro-wrap .ro-hero h2{font-family:'DM Serif Display',serif;font-size:clamp(26px,4vw,40px) !important;line-height:1.15;font-weight:400;margin-bottom:16px;color:var(--white);}\n .ro-wrap .ro-hero h2 em{font-style:italic;color:var(--aqua);}\n .ro-wrap .ro-tagline{font-size:18px !important;color:rgba(255,255,255,.75);font-weight:300;margin-bottom:28px;}\n .ro-wrap .ro-badges{display:flex;flex-wrap:wrap;gap:10px;}\n .ro-wrap .ro-badge{display:inline-flex;align-items:center;gap:6px;background:rgba(255,255,255,.12);border:1px solid rgba(255,255,255,.2);color:var(--white);font-size:15px !important;font-weight:500;padding:6px 14px;border-radius:40px;backdrop-filter:blur(6px);}\n .ro-wrap .ro-callout{background:var(--offwhite);border-left:4px solid var(--sky);padding:20px 24px;}\n .ro-wrap .ro-callout p{font-size:18px !important;color:var(--text);line-height:1.7;margin:0;}\n .ro-wrap .ro-callout strong{color:var(--ocean);}\n .ro-wrap .ro-section{padding:36px 40px;border-bottom:1px solid var(--slate);}\n .ro-wrap .ro-label{font-size:13px !important;font-weight:700;letter-spacing:.2em;text-transform:uppercase;color:var(--sky);margin-bottom:8px;}\n .ro-wrap .ro-title{font-family:'DM Serif Display',serif;font-size:24px !important;color:var(--deep);margin-bottom:20px;font-weight:400;}\n .ro-wrap .stage-pipeline{display:flex;flex-direction:column;gap:0;margin-top:4px;}\n .ro-wrap .stage-row{display:flex;flex-direction:row;gap:12px;position:relative;min-width:0;align-items:flex-start;width:100%;box-sizing:border-box;}\n .ro-wrap .stage-row:not(:last-child) .stage-line{position:absolute;left:17px;top:40px;bottom:0;width:2px;background:var(--slate);}\n .ro-wrap .stage-num{width:36px;height:36px;min-width:36px;max-width:36px;border-radius:50%;background:linear-gradient(135deg,var(--ocean),var(--sky));color:white;display:flex;align-items:center;justify-content:center;font-size:16px !important;font-weight:700;flex:0 0 36px;position:relative;z-index:1;margin-top:16px;}\n .ro-wrap .stage-body{background:var(--offwhite);border:1px solid var(--slate);border-radius:var(--radius);padding:16px 18px;margin-bottom:12px;flex:1 1 0;min-width:0;overflow:hidden;overflow-wrap:break-word;word-break:break-word;box-sizing:border-box;}\n .ro-wrap .stage-body h3{font-size:20px !important;font-weight:600;color:var(--deep);margin-bottom:8px;margin-top:6px;}\n .ro-wrap 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.ro-wrap .specs-table tr:hover td{background:var(--offwhite);}\n .ro-wrap .conditions-table{width:100%;border-collapse:collapse;font-size:18px !important;margin-top:4px;}\n .ro-wrap .conditions-table th{background:var(--deep);color:var(--white);font-size:15px !important;font-weight:600;letter-spacing:.06em;text-transform:uppercase;padding:10px 12px;text-align:left;}\n .ro-wrap .conditions-table th:first-child{border-radius:var(--radius) 0 0 0;}\n .ro-wrap .conditions-table th:last-child{border-radius:0 var(--radius) 0 0;}\n .ro-wrap .conditions-table td{padding:10px 12px;border-bottom:1px solid var(--slate);color:var(--text);}\n .ro-wrap .conditions-table tr:nth-child(even) td{background:var(--offwhite);}\n .ro-wrap .ro-feature-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(min(220px,100%),1fr));gap:16px;margin-top:4px;}\n .ro-wrap .ro-feature-card{background:var(--offwhite);border:1px solid var(--slate);border-radius:var(--radius);padding:20px 18px;}\n .ro-wrap 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.schedule-card p{font-size:15px !important;color:var(--muted);margin:0;line-height:1.45;}\n .ro-wrap .benefits-strip{display:flex;flex-wrap:wrap;background:var(--deep);color:var(--white);border-radius:0 0 var(--radius) var(--radius);overflow:hidden;}\n .ro-wrap .benefit-item{flex:1 1 200px;padding:24px 22px;border-right:1px solid rgba(255,255,255,.1);}\n .ro-wrap .benefit-item:last-child{border-right:none;}\n .ro-wrap .bi-icon{font-size:22px !important;margin-bottom:10px;}\n .ro-wrap .benefit-item h4{font-size:15px !important;font-weight:600;color:var(--aqua);margin-bottom:5px;text-transform:uppercase;letter-spacing:.05em;}\n .ro-wrap .benefit-item p{font-size:15px !important;color:rgba(255,255,255,.65);line-height:1.55;margin:0;}\n .ro-wrap .faucet-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(min(200px,100%),1fr));gap:16px;margin-top:4px;}\n .ro-wrap .faucet-card{border:2px solid var(--slate);border-radius:var(--radius);padding:18px;text-align:center;}\n .ro-wrap .faucet-icon{font-size:28px !important;margin-bottom:10px;}\n .ro-wrap .faucet-card h4{font-size:18px !important;font-weight:600;color:var(--deep);margin-bottom:6px;}\n .ro-wrap .faucet-card p{font-size:15px !important;color:var(--muted);line-height:1.5;margin:0;}\n .ro-wrap .spec-cards{display:grid;grid-template-columns:repeat(auto-fill,minmax(min(180px,100%),1fr));gap:12px;margin-top:4px;}\n .ro-wrap .spec-card{background:var(--offwhite);border:1px solid var(--slate);border-radius:var(--radius);padding:16px;}\n .ro-wrap .spec-card .sc-label{font-size:13px !important;font-weight:700;letter-spacing:.08em;color:var(--sky);text-transform:uppercase;margin-bottom:4px;}\n .ro-wrap .spec-card .sc-value{font-size:20px !important;font-weight:600;color:var(--deep);margin-bottom:4px;}\n .ro-wrap .spec-card .sc-note{font-size:15px !important;color:var(--muted);}\n @media(max-width:640px){\n .ro-wrap .ro-hero{padding:36px 24px 32px;}\n .ro-wrap .ro-section{padding:28px 20px;}\n .ro-wrap .ro-feature-grid,.ro-wrap .faucet-grid,.ro-wrap .filter-schedule,.ro-wrap .spec-cards{grid-template-columns:1fr;}\n .ro-wrap .benefits-strip{flex-direction:column;}\n .ro-wrap .benefit-item{border-right:none;border-bottom:1px solid rgba(255,255,255,.1);}\n }\n \/* ── Nuclear override — force all text inside ro-wrap to be readable ── *\/\n .ro-wrap p,\n .ro-wrap li,\n .ro-wrap td,\n .ro-wrap th,\n .ro-wrap .ro-section \u003e p {\n font-size: 18px !important;\n line-height: 1.6 !important;\n }\n .ro-wrap .ro-section \u003e p,\n .ro-wrap .ro-callout p,\n .ro-wrap .stage-body p,\n .ro-wrap .ro-feature-card p,\n .ro-wrap .schedule-card p,\n .ro-wrap .faucet-card p,\n .ro-wrap .spec-card .sc-note,\n .ro-wrap .pro-tip p {\n font-size: 18px !important;\n line-height: 1.6 !important;\n }\n .ro-wrap h2 { font-size: clamp(26px,4vw,40px) !important; line-height:1.15 !important; }\n .ro-wrap h3 { font-size: 20px !important; line-height:1.3 !important; }\n .ro-wrap h4 { font-size: 18px !important; line-height:1.3 !important; }\n .ro-wrap .ro-label,\n .ro-wrap .stage-tag,\n .ro-wrap .sc-label { font-size: 14px !important; }\n .ro-wrap .ro-title { font-size: 24px !important; }\n .ro-wrap .interval { font-size: 22px !important; }\n .ro-wrap .stage-num { font-size: 16px !important; }\n .ro-wrap .ro-eyebrow { font-size: 14px !important; }\n .ro-wrap .ro-badge { font-size: 15px !important; }\n\u003c\/style\u003e\n\u003cdiv class=\"ro-wrap\"\u003e\n\n\u003cdiv class=\"ro-hero\"\u003e\n\u003cdiv class=\"ro-eyebrow\"\u003eWatts Premier RO Components\u003c\/div\u003e\n\u003ch2\u003eWatts \u003cem\u003eWQCM Kwik-Change Replacement Reverse Osmosis Membrane\u003c\/em\u003e\n\u003c\/h2\u003e\n\u003cp class=\"ro-tagline\"\u003eHigh-efficiency membrane designed specifically for Watts Kwik-Change RO systems. Available in 35, 50, and 100 GPD configurations. Not compatible with Watts Premier models.\u003c\/p\u003e\n\u003cdiv class=\"ro-badges\"\u003e\n\u003cspan class=\"ro-badge\"\u003eTFC Membrane Technology\u003c\/span\u003e\n\u003cspan class=\"ro-badge\"\u003eQuick-Change Design\u003c\/span\u003e\n\u003cspan class=\"ro-badge\"\u003e2-3 Year Lifespan\u003c\/span\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"ro-section\"\u003e\n\u003cdiv class=\"ro-label\"\u003eWHY IT WORKS\u003c\/div\u003e\n\u003ch3 class=\"ro-title\"\u003eProven Semi-Permeable Filtration\u003c\/h3\u003e\n\u003cdiv class=\"ro-feature-grid\"\u003e\n\u003cdiv class=\"ro-feature-card\"\u003e\n\u003cdiv class=\"ro-feat-icon\"\u003e\u003cspan\u003e🔬\u003c\/span\u003e\u003c\/div\u003e\n\u003ch3\u003eUp to 99% Contaminant Removal\u003c\/h3\u003e\n\u003cp\u003eThin-film composite membrane rejects dissolved solids, heavy metals, chlorine, and microorganisms through molecular-level filtration.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"ro-feature-card\"\u003e\n\u003cdiv class=\"ro-feat-icon\"\u003e\u003cspan\u003e⚡\u003c\/span\u003e\u003c\/div\u003e\n\u003ch3\u003eKwik-Change Installation\u003c\/h3\u003e\n\u003cp\u003eTool-free replacement design reduces maintenance time. Twist-and-lock housing lets you swap membranes in under two minutes.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"ro-feature-card\"\u003e\n\u003cdiv class=\"ro-feat-icon\"\u003e\u003cspan\u003e💧\u003c\/span\u003e\u003c\/div\u003e\n\u003ch3\u003eMultiple Flow Rates\u003c\/h3\u003e\n\u003cp\u003eChoose 35, 50, or 100 gallons per day based on household demand. All configurations maintain consistent rejection rates across the service life.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"ro-feature-card\"\u003e\n\u003cdiv class=\"ro-feat-icon\"\u003e\u003cspan\u003e🔧\u003c\/span\u003e\u003c\/div\u003e\n\u003ch3\u003eSystem-Specific Engineering\u003c\/h3\u003e\n\u003cp\u003eSized precisely for Watts Kwik-Change housings. Pre-tested to ensure proper seal and flow dynamics in compatible systems.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"ro-section\"\u003e\n\u003cdiv class=\"ro-label\"\u003eCOMPATIBILITY\u003c\/div\u003e\n\u003ch3 class=\"ro-title\"\u003eWatts Kwik-Change RO Systems Only\u003c\/h3\u003e\n\u003cp\u003eThis membrane fits Watts Water Quality Kwik-Change reverse osmosis systems exclusively. \u003cstrong\u003eIt will not work with Watts Premier models.\u003c\/strong\u003e Choose the correct production rate for your system: WQCM10-35 (35 GPD, 10\" height), WQCM11-50 (50 GPD, 11\" height), or WQCM13-100 (100 GPD, 13\" height). Verify your system model before ordering. Part numbers WQC4RO11-50MT and WQC4RO11-50PT use the WQCM11-50 membrane.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"ro-section\"\u003e\n\u003cdiv class=\"ro-label\"\u003eMAINTENANCE\u003c\/div\u003e\n\u003ch3 class=\"ro-title\"\u003eReplacement Schedule\u003c\/h3\u003e\n\u003cdiv class=\"filter-schedule\"\u003e\n\u003cdiv class=\"schedule-card\"\u003e\n\u003cdiv class=\"interval\"\u003eEvery 6 Months\u003c\/div\u003e\n\u003ch4\u003ePre-Filters\u003c\/h4\u003e\n\u003cp\u003eReplace sediment and carbon pre-filters to protect the membrane from fouling and extend its operational life.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"schedule-card\"\u003e\n\u003cdiv class=\"interval\"\u003eEvery 2-3 Years\u003c\/div\u003e\n\u003ch4\u003eRO Membrane\u003c\/h4\u003e\n\u003cp\u003eReplace the WQCM membrane when you notice reduced flow rate, increased TDS in product water, or after maximum service period.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"schedule-card\"\u003e\n\u003cdiv class=\"interval\"\u003eMonthly\u003c\/div\u003e\n\u003ch4\u003eSystem Inspection\u003c\/h4\u003e\n\u003cp\u003eCheck for leaks around housing connections. Monitor production rate and waste water ratio to catch performance issues early.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"benefits-strip\"\u003e\n\u003cdiv class=\"benefit-item\"\u003e\n\u003cdiv class=\"bi-icon\"\u003e🚰\u003c\/div\u003e\n\u003ch4\u003eRemoves Lead and Heavy Metals\u003c\/h4\u003e\n\u003cp\u003eEffectively filters lead, arsenic, chromium, and other dissolved metals that standard carbon filters cannot capture.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"benefit-item\"\u003e\n\u003cdiv class=\"bi-icon\"\u003e🌍\u003c\/div\u003e\n\u003ch4\u003eReduces Plastic Waste\u003c\/h4\u003e\n\u003cp\u003eEliminates the need for bottled water. One membrane can replace thousands of single-use plastic bottles over its lifespan.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"benefit-item\"\u003e\n\u003cdiv class=\"bi-icon\"\u003e💰\u003c\/div\u003e\n\u003ch4\u003eLower Long-Term Costs\u003c\/h4\u003e\n\u003cp\u003eTwo to three year service life means fewer replacements and less maintenance compared to standard filtration methods.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"benefit-item\"\u003e\n\u003cdiv class=\"bi-icon\"\u003e👨‍🔬\u003c\/div\u003e\n\u003ch4\u003eProven TFC Technology\u003c\/h4\u003e\n\u003cp\u003eThin-film composite construction delivers consistent performance across varying water conditions and temperature ranges.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003c\/div\u003e","brand":"Watts","offers":[{"title":"50 GPD","offer_id":35617007829154,"sku":"WQCM11-50","price":144.79,"currency_code":"USD","in_stock":true},{"title":"100 GPD","offer_id":35617007861922,"sku":"WQCM13-100","price":178.41,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0446\/7677\/6098\/files\/product-5537005568162-padded.jpg?v=1777271058"},{"product_id":"watts-wqtsc-10-10-pre-filter-cartridge-for-watts-qt-ro-sediment","title":"Watts (WQTSC-10) 10\" Pre-filter Cartridge for Watts QT RO - Sediment","description":"\n\u003clink href=\"https:\/\/fonts.googleapis.com\/css2?family=DM+Serif+Display:ital@0;1\u0026amp;family=DM+Sans:wght@300;400;500;600\u0026amp;display=swap\" rel=\"stylesheet\"\u003e\n\u003cstyle\u003e\n .ro-wrap {\n --deep:#0a1628;--ocean:#0f3460;--blue:#1565c0;--sky:#2196f3;--aqua:#4dd0e1;\n --white:#ffffff;--offwhite:#f2f7fc;--slate:#dce8f5;--text:#0d1f38;--muted:#4a6280;\n --gold:#f59e0b;--radius:12px;\n font-family:'DM Sans',sans-serif;color:var(--text);line-height:1.6;-webkit-font-smoothing:antialiased;overflow-wrap:break-word;word-break:break-word;min-width:0;\n }\n .ro-wrap 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.ro-hero{padding:36px 24px 32px;}\n .ro-wrap .ro-section{padding:28px 20px;}\n .ro-wrap .ro-feature-grid,.ro-wrap .faucet-grid,.ro-wrap .filter-schedule,.ro-wrap .spec-cards{grid-template-columns:1fr;}\n .ro-wrap .benefits-strip{flex-direction:column;}\n .ro-wrap .benefit-item{border-right:none;border-bottom:1px solid rgba(255,255,255,.1);}\n }\n \/* ── Nuclear override — force all text inside ro-wrap to be readable ── *\/\n .ro-wrap p,\n .ro-wrap li,\n .ro-wrap td,\n .ro-wrap th,\n .ro-wrap .ro-section \u003e p {\n font-size: 18px !important;\n line-height: 1.6 !important;\n }\n .ro-wrap .ro-section \u003e p,\n .ro-wrap .ro-callout p,\n .ro-wrap .stage-body p,\n .ro-wrap .ro-feature-card p,\n .ro-wrap .schedule-card p,\n .ro-wrap .faucet-card p,\n .ro-wrap .spec-card .sc-note,\n .ro-wrap .pro-tip p {\n font-size: 18px !important;\n line-height: 1.6 !important;\n }\n .ro-wrap h2 { font-size: clamp(26px,4vw,40px) !important; line-height:1.15 !important; }\n .ro-wrap h3 { font-size: 20px !important; line-height:1.3 !important; }\n .ro-wrap h4 { font-size: 18px !important; line-height:1.3 !important; }\n .ro-wrap .ro-label,\n .ro-wrap .stage-tag,\n .ro-wrap .sc-label { font-size: 14px !important; }\n .ro-wrap .ro-title { font-size: 24px !important; }\n .ro-wrap .interval { font-size: 22px !important; }\n .ro-wrap .stage-num { font-size: 16px !important; }\n .ro-wrap .ro-eyebrow { font-size: 14px !important; }\n .ro-wrap .ro-badge { font-size: 15px !important; }\n\u003c\/style\u003e\n\u003cdiv class=\"ro-wrap\"\u003e\n\n\u003cdiv class=\"ro-hero\"\u003e\n\u003cdiv class=\"ro-eyebrow\"\u003eWatts QT RO System Component\u003c\/div\u003e\n\u003ch2\u003e\n\u003cem\u003eWatts WQTSC-10\u003c\/em\u003e 10\" Sediment Pre-Filter Cartridge\u003c\/h2\u003e\n\u003cp class=\"ro-tagline\"\u003eMelt-blown polypropylene construction captures sediment, rust, and particulates before they reach your RO membrane\u003c\/p\u003e\n\u003cdiv class=\"ro-badges\"\u003e\n\u003cspan class=\"ro-badge\"\u003e10 Micron\u003c\/span\u003e\n\u003cspan class=\"ro-badge\"\u003e10\" Length\u003c\/span\u003e\n\u003cspan class=\"ro-badge\"\u003eOEM Replacement\u003c\/span\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"ro-section\"\u003e\n\u003cdiv class=\"ro-label\"\u003eWHY IT WORKS\u003c\/div\u003e\n\u003ch3 class=\"ro-title\"\u003eMelt-blown sediment filtration engineered for the Watts QT system\u003c\/h3\u003e\n\u003cdiv class=\"ro-feature-grid\"\u003e\n\u003cdiv class=\"ro-feature-card\"\u003e\n\u003cdiv class=\"ro-feat-icon\"\u003e\u003cspan\u003e🧵\u003c\/span\u003e\u003c\/div\u003e\n\u003ch3\u003eGraduated Density\u003c\/h3\u003e\n\u003cp\u003eMelt-blown polypropylene fibers create tighter filtration toward the core, capturing larger particles first and extending cartridge life\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"ro-feature-card\"\u003e\n\u003cdiv class=\"ro-feat-icon\"\u003e\u003cspan\u003e🛡️\u003c\/span\u003e\u003c\/div\u003e\n\u003ch3\u003eMembrane Protection\u003c\/h3\u003e\n\u003cp\u003eRemoves sediment, silt, sand, and rust before they reach the RO membrane, preventing premature fouling and maintaining system efficiency\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"ro-feature-card\"\u003e\n\u003cdiv class=\"ro-feat-icon\"\u003e\u003cspan\u003e⚙️\u003c\/span\u003e\u003c\/div\u003e\n\u003ch3\u003eDrop-In Fit\u003c\/h3\u003e\n\u003cp\u003eFactory-matched dimensions for the Watts QT RO housing—no modification or adapter required for installation\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"ro-feature-card\"\u003e\n\u003cdiv class=\"ro-feat-icon\"\u003e\u003cspan\u003e💧\u003c\/span\u003e\u003c\/div\u003e\n\u003ch3\u003e10 Micron Rating\u003c\/h3\u003e\n\u003cp\u003eIdeal pre-filtration size for municipal water or well sources with light to moderate sediment levels\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"ro-section\"\u003e\n\u003cdiv class=\"ro-label\"\u003eCOMPATIBILITY\u003c\/div\u003e\n\u003ch3 class=\"ro-title\"\u003eDesigned for Watts QT reverse osmosis systems\u003c\/h3\u003e\n\u003cp\u003eThis WQTSC-10 cartridge is the OEM sediment pre-filter for Watts QT RO systems. It installs in the first stage housing and should be replaced every 6-12 months depending on sediment load and source water quality.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"ro-section\"\u003e\n\u003cdiv class=\"ro-label\"\u003eMAINTENANCE\u003c\/div\u003e\n\u003ch3 class=\"ro-title\"\u003eReplacement schedule for sediment cartridges\u003c\/h3\u003e\n\u003cdiv class=\"filter-schedule\"\u003e\n\u003cdiv class=\"schedule-card\"\u003e\n\u003cdiv class=\"interval\"\u003eEvery 6 Months\u003c\/div\u003e\n\u003ch4\u003eHeavy Sediment\u003c\/h4\u003e\n\u003cp\u003eWell water, construction zones, or visible particulates in source water\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"schedule-card\"\u003e\n\u003cdiv class=\"interval\"\u003eEvery 9 Months\u003c\/div\u003e\n\u003ch4\u003eModerate Use\u003c\/h4\u003e\n\u003cp\u003eMunicipal water with occasional cloudiness or older distribution lines\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"schedule-card\"\u003e\n\u003cdiv class=\"interval\"\u003eEvery 12 Months\u003c\/div\u003e\n\u003ch4\u003eLight Sediment\n\u003c\/h4\u003e\n\u003cp\u003eClean municipal water with minimal particulate load and consistent clarity\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"benefits-strip\"\u003e\n\u003cdiv class=\"benefit-item\"\u003e\n\u003cdiv class=\"bi-icon\"\u003e📦\u003c\/div\u003e\n\u003ch4\u003eOEM Quality\u003c\/h4\u003e\n\u003cp\u003eGenuine Watts cartridge built to original equipment specifications\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"benefit-item\"\u003e\n\u003cdiv class=\"bi-icon\"\u003e🔧\u003c\/div\u003e\n\u003ch4\u003eSimple Swap\u003c\/h4\u003e\n\u003cp\u003eStandard 10\" filter change—no tools beyond a housing wrench\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"benefit-item\"\u003e\n\u003cdiv class=\"bi-icon\"\u003e💰\u003c\/div\u003e\n\u003ch4\u003eExtends Membrane Life\u003c\/h4\u003e\n\u003cp\u003ePrevents costly early replacement of the RO membrane by filtering sediment upstream\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003c\/div\u003e","brand":"Watts","offers":[{"title":"Default Title","offer_id":35471850733730,"sku":"WQTSC-10","price":65.56,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0446\/7677\/6098\/files\/watts-wqtsc-10-10-pre-filter-cartridge-for-watts-qt-ro-sediment-354762.jpg?v=1791926802"},{"product_id":"watts-wqtcbc-10-10-pre-filter-cartridge-for-watts-qt-ro-carbon-block","title":"Watts (WQTCBC-10) 10\" Pre-filter Cartridge for Watts QT RO - Carbon Block","description":"\n\u003clink href=\"https:\/\/fonts.googleapis.com\/css2?family=DM+Serif+Display:ital@0;1\u0026amp;family=DM+Sans:wght@300;400;500;600\u0026amp;display=swap\" rel=\"stylesheet\"\u003e\n\u003cstyle\u003e\n .ro-wrap {\n --deep:#0a1628;--ocean:#0f3460;--blue:#1565c0;--sky:#2196f3;--aqua:#4dd0e1;\n 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Display',serif;font-size:clamp(26px,4vw,40px) !important;line-height:1.15;font-weight:400;margin-bottom:16px;color:var(--white);}\n .ro-wrap .ro-hero h2 em{font-style:italic;color:var(--aqua);}\n .ro-wrap .ro-tagline{font-size:18px !important;color:rgba(255,255,255,.75);font-weight:300;margin-bottom:28px;}\n .ro-wrap .ro-badges{display:flex;flex-wrap:wrap;gap:10px;}\n .ro-wrap .ro-badge{display:inline-flex;align-items:center;gap:6px;background:rgba(255,255,255,.12);border:1px solid rgba(255,255,255,.2);color:var(--white);font-size:15px !important;font-weight:500;padding:6px 14px;border-radius:40px;backdrop-filter:blur(6px);}\n .ro-wrap .ro-callout{background:var(--offwhite);border-left:4px solid var(--sky);padding:20px 24px;}\n .ro-wrap .ro-callout p{font-size:18px !important;color:var(--text);line-height:1.7;margin:0;}\n .ro-wrap .ro-callout strong{color:var(--ocean);}\n .ro-wrap .ro-section{padding:36px 40px;border-bottom:1px solid var(--slate);}\n .ro-wrap .ro-label{font-size:13px !important;font-weight:700;letter-spacing:.2em;text-transform:uppercase;color:var(--sky);margin-bottom:8px;}\n .ro-wrap .ro-title{font-family:'DM Serif Display',serif;font-size:24px !important;color:var(--deep);margin-bottom:20px;font-weight:400;}\n .ro-wrap .stage-pipeline{display:flex;flex-direction:column;gap:0;margin-top:4px;}\n .ro-wrap .stage-row{display:flex;flex-direction:row;gap:12px;position:relative;min-width:0;align-items:flex-start;width:100%;box-sizing:border-box;}\n .ro-wrap .stage-row:not(:last-child) .stage-line{position:absolute;left:17px;top:40px;bottom:0;width:2px;background:var(--slate);}\n .ro-wrap .stage-num{width:36px;height:36px;min-width:36px;max-width:36px;border-radius:50%;background:linear-gradient(135deg,var(--ocean),var(--sky));color:white;display:flex;align-items:center;justify-content:center;font-size:16px !important;font-weight:700;flex:0 0 36px;position:relative;z-index:1;margin-top:16px;}\n .ro-wrap .stage-body{background:var(--offwhite);border:1px solid var(--slate);border-radius:var(--radius);padding:16px 18px;margin-bottom:12px;flex:1 1 0;min-width:0;overflow:hidden;overflow-wrap:break-word;word-break:break-word;box-sizing:border-box;}\n .ro-wrap .stage-body h3{font-size:20px !important;font-weight:600;color:var(--deep);margin-bottom:8px;margin-top:6px;}\n .ro-wrap .stage-tag{display:block;font-size:12px !important;font-weight:700;letter-spacing:.04em;text-transform:uppercase;background:var(--slate);color:var(--ocean);padding:3px 8px;border-radius:4px;margin-bottom:8px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;max-width:100%;line-height:1.5 !important;box-sizing:border-box;}\n .ro-wrap .stage-body p{font-size:18px !important;color:var(--muted);line-height:1.6;margin:0;display:block;}\n .ro-wrap .stage-body .stage-part{font-size:15px !important;color:var(--sky);margin-top:6px;font-weight:500;}\n .ro-wrap .specs-table{width:100%;border-collapse:collapse;font-size:18px !important;}\n .ro-wrap .specs-table 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p{font-size:15px !important;color:rgba(255,255,255,.65);line-height:1.55;margin:0;}\n .ro-wrap .faucet-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(min(200px,100%),1fr));gap:16px;margin-top:4px;}\n .ro-wrap .faucet-card{border:2px solid var(--slate);border-radius:var(--radius);padding:18px;text-align:center;}\n .ro-wrap .faucet-icon{font-size:28px !important;margin-bottom:10px;}\n .ro-wrap .faucet-card h4{font-size:18px !important;font-weight:600;color:var(--deep);margin-bottom:6px;}\n .ro-wrap .faucet-card p{font-size:15px !important;color:var(--muted);line-height:1.5;margin:0;}\n .ro-wrap .spec-cards{display:grid;grid-template-columns:repeat(auto-fill,minmax(min(180px,100%),1fr));gap:12px;margin-top:4px;}\n .ro-wrap .spec-card{background:var(--offwhite);border:1px solid var(--slate);border-radius:var(--radius);padding:16px;}\n .ro-wrap .spec-card .sc-label{font-size:13px !important;font-weight:700;letter-spacing:.08em;color:var(--sky);text-transform:uppercase;margin-bottom:4px;}\n .ro-wrap .spec-card .sc-value{font-size:20px !important;font-weight:600;color:var(--deep);margin-bottom:4px;}\n .ro-wrap .spec-card .sc-note{font-size:15px !important;color:var(--muted);}\n @media(max-width:640px){\n .ro-wrap .ro-hero{padding:36px 24px 32px;}\n .ro-wrap .ro-section{padding:28px 20px;}\n .ro-wrap .ro-feature-grid,.ro-wrap .faucet-grid,.ro-wrap .filter-schedule,.ro-wrap .spec-cards{grid-template-columns:1fr;}\n .ro-wrap .benefits-strip{flex-direction:column;}\n .ro-wrap .benefit-item{border-right:none;border-bottom:1px solid rgba(255,255,255,.1);}\n }\n \/* ── Nuclear override — force all text inside ro-wrap to be readable ── *\/\n .ro-wrap p,\n .ro-wrap li,\n .ro-wrap td,\n .ro-wrap th,\n .ro-wrap .ro-section \u003e p {\n font-size: 18px !important;\n line-height: 1.6 !important;\n }\n .ro-wrap .ro-section \u003e p,\n .ro-wrap .ro-callout p,\n .ro-wrap .stage-body p,\n .ro-wrap .ro-feature-card p,\n .ro-wrap .schedule-card p,\n .ro-wrap .faucet-card p,\n .ro-wrap .spec-card .sc-note,\n .ro-wrap .pro-tip p {\n font-size: 18px !important;\n line-height: 1.6 !important;\n }\n .ro-wrap h2 { font-size: clamp(26px,4vw,40px) !important; line-height:1.15 !important; }\n .ro-wrap h3 { font-size: 20px !important; line-height:1.3 !important; }\n .ro-wrap h4 { font-size: 18px !important; line-height:1.3 !important; }\n .ro-wrap .ro-label,\n .ro-wrap .stage-tag,\n .ro-wrap .sc-label { font-size: 14px !important; }\n .ro-wrap .ro-title { font-size: 24px !important; }\n .ro-wrap .interval { font-size: 22px !important; }\n .ro-wrap .stage-num { font-size: 16px !important; }\n .ro-wrap .ro-eyebrow { font-size: 14px !important; }\n .ro-wrap .ro-badge { font-size: 15px !important; }\n\u003c\/style\u003e\n\u003cdiv class=\"ro-wrap\"\u003e\n\n\u003cdiv class=\"ro-hero\"\u003e\n\u003cdiv class=\"ro-eyebrow\"\u003eWatts Premier Filtration\u003c\/div\u003e\n\u003ch2\u003e\u003cem\u003eWatts WQTCBC-10 Carbon Block Pre-filter Cartridge\u003c\/em\u003e\u003c\/h2\u003e\n\u003cp class=\"ro-tagline\"\u003e10-inch solid carbon block pre-filter engineered for Watts QT reverse osmosis systems. Removes chlorine, organics, and sediment before water reaches the membrane.\u003c\/p\u003e\n\u003cdiv class=\"ro-badges\"\u003e\n\u003cspan class=\"ro-badge\"\u003eCarbon Block\u003c\/span\u003e\n\u003cspan class=\"ro-badge\"\u003e10-Inch Standard\u003c\/span\u003e\n\u003cspan class=\"ro-badge\"\u003eWatts QT Compatible\u003c\/span\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"ro-section\"\u003e\n\u003cdiv class=\"ro-label\"\u003eWHY IT WORKS\u003c\/div\u003e\n\u003ch3 class=\"ro-title\"\u003eActivated carbon block protects your RO membrane\u003c\/h3\u003e\n\u003cdiv class=\"ro-feature-grid\"\u003e\n\u003cdiv class=\"ro-feature-card\"\u003e\n\u003cdiv class=\"ro-feat-icon\"\u003e\u003cspan\u003e🧱\u003c\/span\u003e\u003c\/div\u003e\n\u003ch3\u003eSolid Block Construction\u003c\/h3\u003e\n\u003cp\u003eExtruded carbon block provides superior contact time and removal efficiency compared to granular carbon. Reduces chlorine taste and odor while trapping organic contaminants.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"ro-feature-card\"\u003e\n\u003cdiv class=\"ro-feat-icon\"\u003e\u003cspan\u003e🛡️\u003c\/span\u003e\u003c\/div\u003e\n\u003ch3\u003eMembrane Protection\u003c\/h3\u003e\n\u003cp\u003eRemoves chlorine and chloramines that degrade thin-film composite RO membranes. Extends membrane life and maintains rejection rates in Watts QT systems.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"ro-feature-card\"\u003e\n\u003cdiv class=\"ro-feat-icon\"\u003e\u003cspan\u003e🔧\u003c\/span\u003e\u003c\/div\u003e\n\u003ch3\u003eDrop-In Replacement\u003c\/h3\u003e\n\u003cp\u003eStandard 10-inch cartridge fits Watts QT pre-filter housings without modification. Proper seal ensures bypass-free filtration.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"ro-feature-card\"\u003e\n\u003cdiv class=\"ro-feat-icon\"\u003e\u003cspan\u003e⏱️\u003c\/span\u003e\u003c\/div\u003e\n\u003ch3\u003eExtended Service Life\u003c\/h3\u003e\n\u003cp\u003eHigh-capacity carbon block handles typical household water for 6-12 months depending on source water quality and daily usage volume.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"ro-section\"\u003e\n\u003cdiv class=\"ro-label\"\u003eCOMPATIBILITY\u003c\/div\u003e\n\u003ch3 class=\"ro-title\"\u003eDesigned for Watts QT Systems\u003c\/h3\u003e\n\u003cp\u003eThe Watts WQTCBC-10 carbon block cartridge is manufactured for Watts Premier QT reverse osmosis systems. Fits standard 10-inch filter housings used in Watts QT series configurations. Verify your system uses 10-inch cartridges before ordering.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"ro-section\"\u003e\n\u003cdiv class=\"ro-label\"\u003eMAINTENANCE\u003c\/div\u003e\n\u003ch3 class=\"ro-title\"\u003eReplacement Schedule\u003c\/h3\u003e\n\u003cdiv class=\"filter-schedule\"\u003e\n\u003cdiv class=\"schedule-card\"\u003e\n\u003cdiv class=\"interval\"\u003eEvery 6-12 Months\u003c\/div\u003e\n\u003ch4\u003eCarbon Block Cartridge\u003c\/h4\u003e\n\u003cp\u003eReplace the Watts WQTCBC-10 when chlorine taste returns or after 12 months maximum. Higher chlorine levels or sediment loads require more frequent replacement.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"schedule-card\"\u003e\n\u003cdiv class=\"interval\"\u003eDuring Replacement\u003c\/div\u003e\n\u003ch4\u003eHousing Inspection\u003c\/h4\u003e\n\u003cp\u003eInspect housing o-rings for cracks or deformation. Clean housing interior and lubricate o-rings with food-grade silicone grease before installing new cartridge.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"benefits-strip\"\u003e\n\u003cdiv class=\"benefit-item\"\u003e\n\u003cdiv class=\"bi-icon\"\u003e🏭\u003c\/div\u003e\n\u003ch4\u003eOEM Component\u003c\/h4\u003e\n\u003cp\u003eGenuine Watts part engineered to exact specifications for QT systems\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"benefit-item\"\u003e\n\u003cdiv class=\"bi-icon\"\u003e💧\u003c\/div\u003e\n\u003ch4\u003eChlorine Removal\u003c\/h4\u003e\n\u003cp\u003eProtects RO membrane from oxidative damage and premature failure\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"benefit-item\"\u003e\n\u003cdiv class=\"bi-icon\"\u003e📦\u003c\/div\u003e\n\u003ch4\u003eReady to Install\u003c\/h4\u003e\n\u003cp\u003eSealed cartridge arrives ready for immediate installation in Watts housings\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003c\/div\u003e","brand":"Watts","offers":[{"title":"Default Title","offer_id":35471850995874,"sku":"WQTCBC-10","price":47.32,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0446\/7677\/6098\/files\/watts-wqtcbc-10-10-pre-filter-cartridge-for-watts-qt-ro-carbon-block-571723.jpg?v=1791926802"},{"product_id":"watts-wqtcgac-10-10-pre-filter-cartridge-for-watts-qt-ro-gac","title":"Watts (WQTCGAC-10) 10\" Pre-filter Cartridge for Watts QT RO - GAC","description":"\n\u003clink href=\"https:\/\/fonts.googleapis.com\/css2?family=DM+Serif+Display:ital@0;1\u0026amp;family=DM+Sans:wght@300;400;500;600\u0026amp;display=swap\" rel=\"stylesheet\"\u003e\n\u003cstyle\u003e\n .ro-wrap {\n --deep:#0a1628;--ocean:#0f3460;--blue:#1565c0;--sky:#2196f3;--aqua:#4dd0e1;\n --white:#ffffff;--offwhite:#f2f7fc;--slate:#dce8f5;--text:#0d1f38;--muted:#4a6280;\n --gold:#f59e0b;--radius:12px;\n font-family:'DM Sans',sans-serif;color:var(--text);line-height:1.6;-webkit-font-smoothing:antialiased;overflow-wrap:break-word;word-break:break-word;min-width:0;\n }\n .ro-wrap .ro-hero{background:linear-gradient(135deg,var(--deep) 0%,var(--ocean) 50%,#1a5276 100%);color:var(--white);padding:52px 40px 44px;position:relative;overflow:hidden;border-radius:var(--radius) var(--radius) 0 0;}\n .ro-wrap .ro-hero::before{content:'';position:absolute;inset:0;background:radial-gradient(ellipse 70% 55% at 95% 45%,rgba(77,208,225,.15) 0%,transparent 65%),radial-gradient(ellipse 40% 40% at 5% 80%,rgba(255,255,255,.05) 0%,transparent 60%);pointer-events:none;}\n .ro-wrap .ro-eyebrow{font-size:13px !important;font-weight:600;letter-spacing:.18em;text-transform:uppercase;color:var(--aqua);margin-bottom:12px;}\n .ro-wrap .ro-hero h2{font-family:'DM Serif Display',serif;font-size:clamp(26px,4vw,40px) !important;line-height:1.15;font-weight:400;margin-bottom:16px;color:var(--white);}\n .ro-wrap .ro-hero 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!important;font-weight:600;color:var(--deep);margin-bottom:4px;}\n .ro-wrap .spec-card .sc-note{font-size:15px !important;color:var(--muted);}\n @media(max-width:640px){\n .ro-wrap .ro-hero{padding:36px 24px 32px;}\n .ro-wrap .ro-section{padding:28px 20px;}\n .ro-wrap .ro-feature-grid,.ro-wrap .faucet-grid,.ro-wrap .filter-schedule,.ro-wrap .spec-cards{grid-template-columns:1fr;}\n .ro-wrap .benefits-strip{flex-direction:column;}\n .ro-wrap .benefit-item{border-right:none;border-bottom:1px solid rgba(255,255,255,.1);}\n }\n \/* ── Nuclear override — force all text inside ro-wrap to be readable ── *\/\n .ro-wrap p,\n .ro-wrap li,\n .ro-wrap td,\n .ro-wrap th,\n .ro-wrap .ro-section \u003e p {\n font-size: 18px !important;\n line-height: 1.6 !important;\n }\n .ro-wrap .ro-section \u003e p,\n .ro-wrap .ro-callout p,\n .ro-wrap .stage-body p,\n .ro-wrap .ro-feature-card p,\n .ro-wrap .schedule-card p,\n .ro-wrap .faucet-card p,\n .ro-wrap .spec-card .sc-note,\n .ro-wrap .pro-tip p {\n font-size: 18px !important;\n line-height: 1.6 !important;\n }\n .ro-wrap h2 { font-size: clamp(26px,4vw,40px) !important; line-height:1.15 !important; }\n .ro-wrap h3 { font-size: 20px !important; line-height:1.3 !important; }\n .ro-wrap h4 { font-size: 18px !important; line-height:1.3 !important; }\n .ro-wrap .ro-label,\n .ro-wrap .stage-tag,\n .ro-wrap .sc-label { font-size: 14px !important; }\n .ro-wrap .ro-title { font-size: 24px !important; }\n .ro-wrap .interval { font-size: 22px !important; }\n .ro-wrap .stage-num { font-size: 16px !important; }\n .ro-wrap .ro-eyebrow { font-size: 14px !important; }\n .ro-wrap .ro-badge { font-size: 15px !important; }\n\u003c\/style\u003e\n\u003cdiv class=\"ro-wrap\"\u003e\n\n\u003cdiv class=\"ro-callout\"\u003e\nThe Watts WQTCGAC-10 is a genuine 10-inch granular activated carbon pre-filter cartridge engineered specifically for Watts QT reverse osmosis systems. This GAC filter removes chlorine, taste, and odor from your water supply before it reaches the RO membrane, extending membrane life and improving overall system performance.\n\u003c\/div\u003e\n\n\u003cdiv class=\"ro-section\"\u003e\n\u003cdiv class=\"ro-label\"\u003eSPECIFICATIONS\u003c\/div\u003e\n\u003ch2 class=\"ro-title\"\u003eTechnical Details\u003c\/h2\u003e\n\u003ctable class=\"specs-table\"\u003e\n\u003ctr\u003e\n\u003ctd\u003eModel Number\u003c\/td\u003e\n\u003ctd\u003eWQTCGAC-10\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFilter Media\u003c\/td\u003e\n\u003ctd\u003eGranular Activated Carbon (GAC)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003e10\" x 2.5\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBrand Compatibility\u003c\/td\u003e\n\u003ctd\u003eWatts QT RO Systems\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePrimary Function\u003c\/td\u003e\n\u003ctd\u003eChlorine, taste, and odor reduction\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRecommended Use\u003c\/td\u003e\n\u003ctd\u003ePre-filtration stage\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eReplacement Frequency\u003c\/td\u003e\n\u003ctd\u003eEvery 6-12 months\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInstallation Type\u003c\/td\u003e\n\u003ctd\u003eDrop-in cartridge replacement\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"ro-section\"\u003e\n\u003cdiv class=\"ro-label\"\u003eINSTALLATION \u0026amp; USE\u003c\/div\u003e\n\u003ch2 class=\"ro-title\"\u003eCartridge Replacement Steps\u003c\/h2\u003e\n\u003col class=\"install-steps\"\u003e\n\u003cli\u003eShut off the water supply to your Watts QT RO system and relieve system pressure by opening the storage tank valve\u003c\/li\u003e\n\u003cli\u003eUnscrew the pre-filter housing using a filter wrench, remove the old WQTCGAC-10 cartridge, and clean the housing interior with warm water\u003c\/li\u003e\n\u003cli\u003eInsert the new GAC cartridge into the housing, ensuring proper seating, then hand-tighten the housing back onto the cap\u003c\/li\u003e\n\u003cli\u003eTurn the water supply back on, check for leaks, and flush the system for 5 minutes to remove carbon fines before use\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"ro-section\"\u003e\n\u003cdiv class=\"ro-label\"\u003eCOMPATIBILITY\u003c\/div\u003e\n\u003ch2 class=\"ro-title\"\u003eSystem Requirements\u003c\/h2\u003e\n\u003cp\u003eThe Watts WQTCGAC-10 cartridge is designed exclusively for Watts QT reverse osmosis systems that use 10-inch by 2.5-inch standard size filters. This GAC pre-filter typically occupies the first or second stage position in the filtration sequence, ahead of the RO membrane. It is not interchangeable with the Watts WQTCBC-10 carbon block cartridge, though both serve the QT RO product line. Always verify your system's filter configuration and sizing before ordering replacement cartridges.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"pro-tip\"\u003e\n🔧 \u003cstrong\u003ePro Tip:\u003c\/strong\u003e Run a full flush cycle after installing the new GAC cartridge to clear carbon fines from the system. Black residue in the first few glasses is normal—it's harmless activated carbon dust, not a defect. Let the system flush until the water runs completely clear before reconnecting the storage tank.\n\u003c\/div\u003e\n\n\u003c\/div\u003e","brand":"Watts","offers":[{"title":"Default Title","offer_id":35471852077218,"sku":"WQTCGAC-10","price":44.45,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0446\/7677\/6098\/files\/watts-wqtcgac-10-10-pre-filter-cartridge-for-watts-qt-ro-gac-713098.jpg?v=1791926802"},{"product_id":"watts-wqtcm50-10-10-replacement-membrane-for-watts-qt-ro-50-gpd","title":"Watts (WQTCM50-10) 10\" Replacement Membrane for Watts QT RO - 50 GPD","description":"\n\u003clink href=\"https:\/\/fonts.googleapis.com\/css2?family=DM+Serif+Display:ital@0;1\u0026amp;family=DM+Sans:wght@300;400;500;600\u0026amp;display=swap\" rel=\"stylesheet\"\u003e\n\u003cstyle\u003e\n .ro-wrap {\n --deep:#0a1628;--ocean:#0f3460;--blue:#1565c0;--sky:#2196f3;--aqua:#4dd0e1;\n 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tr:nth-child(even) td{background:var(--offwhite);}\n .ro-wrap .ro-feature-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(min(220px,100%),1fr));gap:16px;margin-top:4px;}\n .ro-wrap .ro-feature-card{background:var(--offwhite);border:1px solid var(--slate);border-radius:var(--radius);padding:20px 18px;}\n .ro-wrap .ro-feat-icon{width:40px;height:40px;background:linear-gradient(135deg,var(--ocean),var(--sky));border-radius:10px;display:flex;align-items:center;justify-content:center;margin-bottom:12px;}\n .ro-wrap .ro-feature-card h3{font-size:20px !important;font-weight:600;color:var(--deep);margin-bottom:6px;}\n .ro-wrap .ro-feature-card p{font-size:18px !important;color:var(--muted);line-height:1.55;margin:0;}\n .ro-wrap .pro-tip{display:block;background:#fffbeb;border:1px solid #f5d87a;border-radius:var(--radius);padding:18px 20px;margin-top:20px;box-sizing:border-box;width:100% !important;}\n .ro-wrap .pro-tip-icon{font-size:22px !important;display:inline;margin-right:8px;line-height:1.6 !important;}\n .ro-wrap .pro-tip p{font-size:18px !important;color:#5a4500;line-height:1.6 !important;margin:0;display:block;width:100%;}\n .ro-wrap .pro-tip strong{color:#3d2e00;}\n .ro-wrap .install-steps{counter-reset:step;list-style:none;padding:0;margin:4px 0 0;display:flex;flex-direction:column;gap:14px;}\n .ro-wrap .install-steps li{counter-increment:step;display:flex;align-items:flex-start;gap:14px;font-size:18px !important;color:var(--text);}\n .ro-wrap .install-steps li::before{content:counter(step);display:flex;align-items:center;justify-content:center;width:28px;height:28px;border-radius:50%;background:var(--ocean);color:white;font-size:15px !important;font-weight:700;flex-shrink:0;margin-top:1px;}\n .ro-wrap .filter-schedule{display:grid;grid-template-columns:repeat(auto-fill,minmax(min(180px,100%),1fr));gap:12px;margin-top:4px;}\n .ro-wrap .schedule-card{background:var(--offwhite);border:1px solid var(--slate);border-radius:var(--radius);padding:16px;}\n .ro-wrap .schedule-card .interval{font-size:22px !important;font-family:'DM Serif Display',serif;color:var(--sky);font-weight:400;margin-bottom:4px;}\n .ro-wrap .schedule-card h4{font-size:18px !important;font-weight:600;color:var(--deep);margin-bottom:4px;}\n .ro-wrap .schedule-card p{font-size:15px !important;color:var(--muted);margin:0;line-height:1.45;}\n .ro-wrap .benefits-strip{display:flex;flex-wrap:wrap;background:var(--deep);color:var(--white);border-radius:0 0 var(--radius) var(--radius);overflow:hidden;}\n .ro-wrap .benefit-item{flex:1 1 200px;padding:24px 22px;border-right:1px solid rgba(255,255,255,.1);}\n .ro-wrap .benefit-item:last-child{border-right:none;}\n .ro-wrap .bi-icon{font-size:22px !important;margin-bottom:10px;}\n .ro-wrap .benefit-item h4{font-size:15px !important;font-weight:600;color:var(--aqua);margin-bottom:5px;text-transform:uppercase;letter-spacing:.05em;}\n .ro-wrap .benefit-item p{font-size:15px !important;color:rgba(255,255,255,.65);line-height:1.55;margin:0;}\n .ro-wrap .faucet-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(min(200px,100%),1fr));gap:16px;margin-top:4px;}\n .ro-wrap .faucet-card{border:2px solid var(--slate);border-radius:var(--radius);padding:18px;text-align:center;}\n .ro-wrap .faucet-icon{font-size:28px !important;margin-bottom:10px;}\n .ro-wrap .faucet-card h4{font-size:18px !important;font-weight:600;color:var(--deep);margin-bottom:6px;}\n .ro-wrap .faucet-card p{font-size:15px !important;color:var(--muted);line-height:1.5;margin:0;}\n .ro-wrap .spec-cards{display:grid;grid-template-columns:repeat(auto-fill,minmax(min(180px,100%),1fr));gap:12px;margin-top:4px;}\n .ro-wrap .spec-card{background:var(--offwhite);border:1px solid var(--slate);border-radius:var(--radius);padding:16px;}\n .ro-wrap .spec-card .sc-label{font-size:13px !important;font-weight:700;letter-spacing:.08em;color:var(--sky);text-transform:uppercase;margin-bottom:4px;}\n .ro-wrap .spec-card .sc-value{font-size:20px !important;font-weight:600;color:var(--deep);margin-bottom:4px;}\n .ro-wrap .spec-card .sc-note{font-size:15px !important;color:var(--muted);}\n @media(max-width:640px){\n .ro-wrap .ro-hero{padding:36px 24px 32px;}\n .ro-wrap .ro-section{padding:28px 20px;}\n .ro-wrap .ro-feature-grid,.ro-wrap .faucet-grid,.ro-wrap .filter-schedule,.ro-wrap .spec-cards{grid-template-columns:1fr;}\n .ro-wrap .benefits-strip{flex-direction:column;}\n .ro-wrap .benefit-item{border-right:none;border-bottom:1px solid rgba(255,255,255,.1);}\n }\n \/* ── Nuclear override — force all text inside ro-wrap to be readable ── *\/\n .ro-wrap p,\n .ro-wrap li,\n .ro-wrap td,\n .ro-wrap th,\n .ro-wrap .ro-section \u003e p {\n font-size: 18px !important;\n line-height: 1.6 !important;\n }\n .ro-wrap .ro-section \u003e p,\n .ro-wrap .ro-callout p,\n .ro-wrap .stage-body p,\n .ro-wrap .ro-feature-card p,\n .ro-wrap .schedule-card p,\n .ro-wrap .faucet-card p,\n .ro-wrap .spec-card .sc-note,\n .ro-wrap .pro-tip p {\n font-size: 18px !important;\n line-height: 1.6 !important;\n }\n .ro-wrap h2 { font-size: clamp(26px,4vw,40px) !important; line-height:1.15 !important; }\n .ro-wrap h3 { font-size: 20px !important; line-height:1.3 !important; }\n .ro-wrap h4 { font-size: 18px !important; line-height:1.3 !important; }\n .ro-wrap .ro-label,\n .ro-wrap .stage-tag,\n .ro-wrap .sc-label { font-size: 14px !important; }\n .ro-wrap .ro-title { font-size: 24px !important; }\n .ro-wrap .interval { font-size: 22px !important; }\n .ro-wrap .stage-num { font-size: 16px !important; }\n .ro-wrap .ro-eyebrow { font-size: 14px !important; }\n .ro-wrap .ro-badge { font-size: 15px !important; }\n\u003c\/style\u003e\n\u003cdiv class=\"ro-wrap\"\u003e\n\n\u003cdiv class=\"ro-hero\"\u003e\n\u003cdiv class=\"ro-eyebrow\"\u003eWatts Premier Reverse Osmosis\u003c\/div\u003e\n\u003ch2\u003e\n\u003cem\u003eWatts WQTCM50-10\u003c\/em\u003e 10\" TFC Membrane\u003c\/h2\u003e\n\u003cdiv class=\"ro-tagline\"\u003e50 GPD thin film composite replacement membrane for Watts QT reverse osmosis systems\u003c\/div\u003e\n\u003cdiv class=\"ro-badges\"\u003e\n\u003cspan class=\"ro-badge\"\u003e✓ 50 gallons per day capacity\u003c\/span\u003e\n\u003cspan class=\"ro-badge\"\u003e✓ 10-inch standard size\u003c\/span\u003e\n\u003cspan class=\"ro-badge\"\u003e✓ TFC technology\u003c\/span\u003e\n\u003cspan class=\"ro-badge\"\u003e✓ Direct Watts QT fit\u003c\/span\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"ro-callout\"\u003e\n\u003cp\u003eThe Watts WQTCM50-10 is a \u003cstrong\u003e50 GPD thin film composite membrane\u003c\/strong\u003e designed specifically for Watts QT reverse osmosis systems. This \u003cstrong\u003e10-inch replacement membrane\u003c\/strong\u003e removes dissolved solids, heavy metals, and contaminants at the molecular level, delivering the purified water your RO system was built to produce.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"ro-section\"\u003e\n\u003cdiv class=\"ro-label\"\u003eKEY FEATURES\u003c\/div\u003e\n\u003ch3 class=\"ro-title\"\u003eWhat Makes This Membrane Essential\u003c\/h3\u003e\n\u003cdiv class=\"ro-feature-grid\"\u003e\n\u003cdiv class=\"ro-feature-card\"\u003e\n\u003cspan class=\"ro-feat-icon\"\u003e💧\u003c\/span\u003e\n\u003ch3\u003e50 GPD Output\u003c\/h3\u003e\n\u003cp\u003eProduces up to 50 gallons of purified water per day for residential use\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"ro-feature-card\"\u003e\n\u003cspan class=\"ro-feat-icon\"\u003e🎯\u003c\/span\u003e\n\u003ch3\u003eThin Film Composite\u003c\/h3\u003e\n\u003cp\u003eTFC membrane technology removes up to 98% of dissolved solids and contaminants\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"ro-feature-card\"\u003e\n\u003cspan class=\"ro-feat-icon\"\u003e🔧\u003c\/span\u003e\n\u003ch3\u003e10-Inch Standard\u003c\/h3\u003e\n\u003cp\u003eIndustry-standard 10\" size designed for Watts QT system housings\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"ro-feature-card\"\u003e\n\u003cspan class=\"ro-feat-icon\"\u003e🔄\u003c\/span\u003e\n\u003ch3\u003eDirect Replacement\u003c\/h3\u003e\n\u003cp\u003eFactory-spec membrane engineered specifically for Watts QT RO systems\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"ro-feature-card\"\u003e\n\u003cspan class=\"ro-feat-icon\"\u003e🛡️\u003c\/span\u003e\n\u003ch3\u003eContaminant Removal\u003c\/h3\u003e\n\u003cp\u003eFilters dissolved salts, heavy metals, fluoride, arsenic, and TDS\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"ro-feature-card\"\u003e\n\u003cspan class=\"ro-feat-icon\"\u003e⏱️\u003c\/span\u003e\n\u003ch3\u003e2-3 Year Lifespan\u003c\/h3\u003e\n\u003cp\u003eReplace every 24-36 months depending on water quality and usage\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"ro-section\"\u003e\n\u003cdiv class=\"ro-label\"\u003eCOMPATIBILITY \u0026amp; APPLICATIONS\u003c\/div\u003e\n\u003ch3 class=\"ro-title\"\u003eSystem Compatibility\u003c\/h3\u003e\n\u003cp\u003eThe WQTCM50-10 membrane is designed for \u003cstrong\u003eWatts QT reverse osmosis systems\u003c\/strong\u003e requiring a 50 GPD membrane. This is the OEM replacement membrane for Watts QT models using 10-inch standard housings. Verify your system model number before ordering to ensure proper fit. Compatible with residential point-of-use RO systems from the Watts Premier QT product line.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"ro-callout\"\u003e\n\u003cp\u003eWatts Premier has been engineering reliable water treatment components for decades. Replace your membrane on schedule to maintain system performance and water quality.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003c\/div\u003e","brand":"Watts","offers":[{"title":"Default Title","offer_id":35471856042146,"sku":"WQTCM50-10","price":146.25,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0446\/7677\/6098\/files\/watts-wqtcm50-10-10-replacement-membrane-for-watts-qt-ro-50-gpd-265095.jpg?v=1791926941"},{"product_id":"watts-premier-105331-ro-pure-50-gpd-membrane","title":"Watts Premier (105331) RO PURE 50 GPD Membrane","description":"\n\u003clink href=\"https:\/\/fonts.googleapis.com\/css2?family=DM+Serif+Display:ital@0;1\u0026amp;family=DM+Sans:wght@300;400;500;600\u0026amp;display=swap\" rel=\"stylesheet\"\u003e\n\u003cstyle\u003e\n .ro-wrap {\n --deep:#0a1628;--ocean:#0f3460;--blue:#1565c0;--sky:#2196f3;--aqua:#4dd0e1;\n --white:#ffffff;--offwhite:#f2f7fc;--slate:#dce8f5;--text:#0d1f38;--muted:#4a6280;\n --gold:#f59e0b;--radius:12px;\n font-family:'DM Sans',sans-serif;color:var(--text);line-height:1.6;-webkit-font-smoothing:antialiased;overflow-wrap:break-word;word-break:break-word;min-width:0;\n }\n .ro-wrap .ro-hero{background:linear-gradient(135deg,var(--deep) 0%,var(--ocean) 50%,#1a5276 100%);color:var(--white);padding:52px 40px 44px;position:relative;overflow:hidden;border-radius:var(--radius) var(--radius) 0 0;}\n .ro-wrap .ro-hero::before{content:'';position:absolute;inset:0;background:radial-gradient(ellipse 70% 55% at 95% 45%,rgba(77,208,225,.15) 0%,transparent 65%),radial-gradient(ellipse 40% 40% at 5% 80%,rgba(255,255,255,.05) 0%,transparent 60%);pointer-events:none;}\n .ro-wrap .ro-eyebrow{font-size:13px !important;font-weight:600;letter-spacing:.18em;text-transform:uppercase;color:var(--aqua);margin-bottom:12px;}\n .ro-wrap .ro-hero h2{font-family:'DM Serif Display',serif;font-size:clamp(26px,4vw,40px) !important;line-height:1.15;font-weight:400;margin-bottom:16px;color:var(--white);}\n .ro-wrap .ro-hero h2 em{font-style:italic;color:var(--aqua);}\n .ro-wrap .ro-tagline{font-size:18px !important;color:rgba(255,255,255,.75);font-weight:300;margin-bottom:28px;}\n .ro-wrap .ro-badges{display:flex;flex-wrap:wrap;gap:10px;}\n .ro-wrap .ro-badge{display:inline-flex;align-items:center;gap:6px;background:rgba(255,255,255,.12);border:1px solid rgba(255,255,255,.2);color:var(--white);font-size:15px !important;font-weight:500;padding:6px 14px;border-radius:40px;backdrop-filter:blur(6px);}\n .ro-wrap .ro-callout{background:var(--offwhite);border-left:4px solid var(--sky);padding:20px 24px;}\n .ro-wrap .ro-callout p{font-size:18px !important;color:var(--text);line-height:1.7;margin:0;}\n .ro-wrap .ro-callout strong{color:var(--ocean);}\n .ro-wrap .ro-section{padding:36px 40px;border-bottom:1px solid var(--slate);}\n .ro-wrap .ro-label{font-size:13px !important;font-weight:700;letter-spacing:.2em;text-transform:uppercase;color:var(--sky);margin-bottom:8px;}\n .ro-wrap .ro-title{font-family:'DM Serif Display',serif;font-size:24px !important;color:var(--deep);margin-bottom:20px;font-weight:400;}\n .ro-wrap .stage-pipeline{display:flex;flex-direction:column;gap:0;margin-top:4px;}\n .ro-wrap .stage-row{display:flex;flex-direction:row;gap:12px;position:relative;min-width:0;align-items:flex-start;width:100%;box-sizing:border-box;}\n .ro-wrap .stage-row:not(:last-child) .stage-line{position:absolute;left:17px;top:40px;bottom:0;width:2px;background:var(--slate);}\n .ro-wrap .stage-num{width:36px;height:36px;min-width:36px;max-width:36px;border-radius:50%;background:linear-gradient(135deg,var(--ocean),var(--sky));color:white;display:flex;align-items:center;justify-content:center;font-size:16px !important;font-weight:700;flex:0 0 36px;position:relative;z-index:1;margin-top:16px;}\n .ro-wrap .stage-body{background:var(--offwhite);border:1px solid var(--slate);border-radius:var(--radius);padding:16px 18px;margin-bottom:12px;flex:1 1 0;min-width:0;overflow:hidden;overflow-wrap:break-word;word-break:break-word;box-sizing:border-box;}\n .ro-wrap .stage-body h3{font-size:20px !important;font-weight:600;color:var(--deep);margin-bottom:8px;margin-top:6px;}\n .ro-wrap .stage-tag{display:block;font-size:12px !important;font-weight:700;letter-spacing:.04em;text-transform:uppercase;background:var(--slate);color:var(--ocean);padding:3px 8px;border-radius:4px;margin-bottom:8px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;max-width:100%;line-height:1.5 !important;box-sizing:border-box;}\n .ro-wrap .stage-body p{font-size:18px !important;color:var(--muted);line-height:1.6;margin:0;display:block;}\n .ro-wrap .stage-body .stage-part{font-size:15px !important;color:var(--sky);margin-top:6px;font-weight:500;}\n .ro-wrap .specs-table{width:100%;border-collapse:collapse;font-size:18px !important;}\n .ro-wrap .specs-table tr{border-bottom:1px solid var(--slate);}\n .ro-wrap .specs-table tr:last-child{border-bottom:none;}\n .ro-wrap .specs-table td{padding:11px 6px;vertical-align:top;}\n .ro-wrap .specs-table td:first-child{font-weight:500;color:var(--deep);width:44%;padding-right:16px;}\n .ro-wrap .specs-table td:last-child{color:var(--muted);}\n .ro-wrap .specs-table tr:hover td{background:var(--offwhite);}\n .ro-wrap .conditions-table{width:100%;border-collapse:collapse;font-size:18px !important;margin-top:4px;}\n .ro-wrap .conditions-table th{background:var(--deep);color:var(--white);font-size:15px !important;font-weight:600;letter-spacing:.06em;text-transform:uppercase;padding:10px 12px;text-align:left;}\n .ro-wrap .conditions-table th:first-child{border-radius:var(--radius) 0 0 0;}\n .ro-wrap .conditions-table th:last-child{border-radius:0 var(--radius) 0 0;}\n .ro-wrap .conditions-table td{padding:10px 12px;border-bottom:1px solid var(--slate);color:var(--text);}\n .ro-wrap .conditions-table tr:nth-child(even) td{background:var(--offwhite);}\n .ro-wrap .ro-feature-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(min(220px,100%),1fr));gap:16px;margin-top:4px;}\n .ro-wrap .ro-feature-card{background:var(--offwhite);border:1px solid var(--slate);border-radius:var(--radius);padding:20px 18px;}\n .ro-wrap .ro-feat-icon{width:40px;height:40px;background:linear-gradient(135deg,var(--ocean),var(--sky));border-radius:10px;display:flex;align-items:center;justify-content:center;margin-bottom:12px;}\n .ro-wrap .ro-feature-card h3{font-size:20px !important;font-weight:600;color:var(--deep);margin-bottom:6px;}\n .ro-wrap .ro-feature-card p{font-size:18px !important;color:var(--muted);line-height:1.55;margin:0;}\n .ro-wrap .pro-tip{display:block;background:#fffbeb;border:1px solid #f5d87a;border-radius:var(--radius);padding:18px 20px;margin-top:20px;box-sizing:border-box;width:100% !important;}\n .ro-wrap .pro-tip-icon{font-size:22px !important;display:inline;margin-right:8px;line-height:1.6 !important;}\n .ro-wrap .pro-tip p{font-size:18px !important;color:#5a4500;line-height:1.6 !important;margin:0;display:block;width:100%;}\n .ro-wrap .pro-tip strong{color:#3d2e00;}\n .ro-wrap .install-steps{counter-reset:step;list-style:none;padding:0;margin:4px 0 0;display:flex;flex-direction:column;gap:14px;}\n .ro-wrap .install-steps li{counter-increment:step;display:flex;align-items:flex-start;gap:14px;font-size:18px !important;color:var(--text);}\n .ro-wrap .install-steps li::before{content:counter(step);display:flex;align-items:center;justify-content:center;width:28px;height:28px;border-radius:50%;background:var(--ocean);color:white;font-size:15px !important;font-weight:700;flex-shrink:0;margin-top:1px;}\n .ro-wrap .filter-schedule{display:grid;grid-template-columns:repeat(auto-fill,minmax(min(180px,100%),1fr));gap:12px;margin-top:4px;}\n .ro-wrap .schedule-card{background:var(--offwhite);border:1px solid var(--slate);border-radius:var(--radius);padding:16px;}\n .ro-wrap .schedule-card .interval{font-size:22px !important;font-family:'DM Serif Display',serif;color:var(--sky);font-weight:400;margin-bottom:4px;}\n .ro-wrap .schedule-card h4{font-size:18px !important;font-weight:600;color:var(--deep);margin-bottom:4px;}\n .ro-wrap .schedule-card p{font-size:15px !important;color:var(--muted);margin:0;line-height:1.45;}\n .ro-wrap .benefits-strip{display:flex;flex-wrap:wrap;background:var(--deep);color:var(--white);border-radius:0 0 var(--radius) var(--radius);overflow:hidden;}\n .ro-wrap .benefit-item{flex:1 1 200px;padding:24px 22px;border-right:1px solid rgba(255,255,255,.1);}\n .ro-wrap .benefit-item:last-child{border-right:none;}\n .ro-wrap .bi-icon{font-size:22px !important;margin-bottom:10px;}\n .ro-wrap .benefit-item h4{font-size:15px !important;font-weight:600;color:var(--aqua);margin-bottom:5px;text-transform:uppercase;letter-spacing:.05em;}\n .ro-wrap .benefit-item p{font-size:15px !important;color:rgba(255,255,255,.65);line-height:1.55;margin:0;}\n .ro-wrap .faucet-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(min(200px,100%),1fr));gap:16px;margin-top:4px;}\n .ro-wrap .faucet-card{border:2px solid var(--slate);border-radius:var(--radius);padding:18px;text-align:center;}\n .ro-wrap .faucet-icon{font-size:28px !important;margin-bottom:10px;}\n .ro-wrap .faucet-card h4{font-size:18px !important;font-weight:600;color:var(--deep);margin-bottom:6px;}\n .ro-wrap .faucet-card p{font-size:15px !important;color:var(--muted);line-height:1.5;margin:0;}\n .ro-wrap .spec-cards{display:grid;grid-template-columns:repeat(auto-fill,minmax(min(180px,100%),1fr));gap:12px;margin-top:4px;}\n .ro-wrap .spec-card{background:var(--offwhite);border:1px solid var(--slate);border-radius:var(--radius);padding:16px;}\n .ro-wrap .spec-card .sc-label{font-size:13px !important;font-weight:700;letter-spacing:.08em;color:var(--sky);text-transform:uppercase;margin-bottom:4px;}\n .ro-wrap .spec-card .sc-value{font-size:20px !important;font-weight:600;color:var(--deep);margin-bottom:4px;}\n .ro-wrap .spec-card .sc-note{font-size:15px !important;color:var(--muted);}\n @media(max-width:640px){\n .ro-wrap .ro-hero{padding:36px 24px 32px;}\n .ro-wrap .ro-section{padding:28px 20px;}\n .ro-wrap .ro-feature-grid,.ro-wrap .faucet-grid,.ro-wrap .filter-schedule,.ro-wrap .spec-cards{grid-template-columns:1fr;}\n .ro-wrap .benefits-strip{flex-direction:column;}\n .ro-wrap .benefit-item{border-right:none;border-bottom:1px solid rgba(255,255,255,.1);}\n }\n \/* ── Nuclear override — force all text inside ro-wrap to be readable ── *\/\n .ro-wrap p,\n .ro-wrap li,\n .ro-wrap td,\n .ro-wrap th,\n .ro-wrap .ro-section \u003e p {\n font-size: 18px !important;\n line-height: 1.6 !important;\n }\n .ro-wrap .ro-section \u003e p,\n .ro-wrap .ro-callout p,\n .ro-wrap .stage-body p,\n .ro-wrap .ro-feature-card p,\n .ro-wrap .schedule-card p,\n .ro-wrap .faucet-card p,\n .ro-wrap .spec-card .sc-note,\n .ro-wrap .pro-tip p {\n font-size: 18px !important;\n line-height: 1.6 !important;\n }\n .ro-wrap h2 { font-size: clamp(26px,4vw,40px) !important; line-height:1.15 !important; }\n .ro-wrap h3 { font-size: 20px !important; line-height:1.3 !important; }\n .ro-wrap h4 { font-size: 18px !important; line-height:1.3 !important; }\n .ro-wrap .ro-label,\n .ro-wrap .stage-tag,\n .ro-wrap .sc-label { font-size: 14px !important; }\n .ro-wrap .ro-title { font-size: 24px !important; }\n .ro-wrap .interval { font-size: 22px !important; }\n .ro-wrap .stage-num { font-size: 16px !important; }\n .ro-wrap .ro-eyebrow { font-size: 14px !important; }\n .ro-wrap .ro-badge { font-size: 15px !important; }\n\u003c\/style\u003e\n\u003cdiv class=\"ro-wrap\"\u003e\n\n\u003cdiv class=\"ro-callout\"\u003e\nThe Watts Premier 105331 RO PURE 50 GPD Membrane is a residential reverse osmosis membrane designed exclusively for the RO-PURE and WP-RO4 systems, delivering up to 50 gallons per day of purified water. This semi-permeable membrane removes up to 99% of dissolved solids, heavy metals, and cysts through advanced TFC (thin-film composite) filtration technology.\n\u003c\/div\u003e\n\n\u003cdiv class=\"ro-section\"\u003e\n\u003cdiv class=\"ro-label\"\u003eSPECIFICATIONS\u003c\/div\u003e\n\u003ch2 class=\"ro-title\"\u003eCore Performance Data\u003c\/h2\u003e\n\u003cdiv class=\"spec-cards\"\u003e\n\u003cdiv class=\"spec-card\"\u003e\n\u003cdiv class=\"sc-label\"\u003eDaily Capacity\u003c\/div\u003e\n\u003cdiv class=\"sc-value\"\u003e50 GPD\u003c\/div\u003e\n\u003cdiv class=\"sc-note\"\u003eGallons per day at standard conditions\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"spec-card\"\u003e\n\u003cdiv class=\"sc-label\"\u003eMembrane Type\u003c\/div\u003e\n\u003cdiv class=\"sc-value\"\u003eTFC RO\u003c\/div\u003e\n\u003cdiv class=\"sc-note\"\u003eThin-film composite reverse osmosis\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"spec-card\"\u003e\n\u003cdiv class=\"sc-label\"\u003eService Life\u003c\/div\u003e\n\u003cdiv class=\"sc-value\"\u003e2–5 Years\u003c\/div\u003e\n\u003cdiv class=\"sc-note\"\u003eVaries by water quality and usage\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"spec-card\"\u003e\n\u003cdiv class=\"sc-label\"\u003eContaminant Rejection\u003c\/div\u003e\n\u003cdiv class=\"sc-value\"\u003eUp to 99%\u003c\/div\u003e\n\u003cdiv class=\"sc-note\"\u003eTDS, heavy metals, cysts\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"spec-card\"\u003e\n\u003cdiv class=\"sc-label\"\u003eSystem Compatibility\u003c\/div\u003e\n\u003cdiv class=\"sc-value\"\u003eRO-PURE\u003c\/div\u003e\n\u003cdiv class=\"sc-note\"\u003eWP-RO4 systems only\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"spec-card\"\u003e\n\u003cdiv class=\"sc-label\"\u003ePart Number\u003c\/div\u003e\n\u003cdiv class=\"sc-value\"\u003e105331\u003c\/div\u003e\n\u003cdiv class=\"sc-note\"\u003eWatts Premier OEM membrane\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"ro-section\"\u003e\n\u003cdiv class=\"ro-label\"\u003eTECHNICAL DETAILS\u003c\/div\u003e\n\u003ch2 class=\"ro-title\"\u003eMembrane Specifications\u003c\/h2\u003e\n\u003ctable class=\"specs-table\"\u003e\n\u003ctr\u003e\n\u003ctd\u003eManufacturer\u003c\/td\u003e\n\u003ctd\u003eWatts Premier\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eModel Number\u003c\/td\u003e\n\u003ctd\u003e105331\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduction Rate\u003c\/td\u003e\n\u003ctd\u003e50 gallons per day (GPD)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMembrane Technology\u003c\/td\u003e\n\u003ctd\u003eThin-film composite (TFC) semi-permeable\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eContaminants Reduced\u003c\/td\u003e\n\u003ctd\u003eArsenic, lead, nitrates, perchlorate, chromium, copper, TDS, Giardia, Cryptosporidium\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRecommended Replacement\u003c\/td\u003e\n\u003ctd\u003eEvery 2–5 years based on water conditions\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInstallation\u003c\/td\u003e\n\u003ctd\u003eEasy drop-in replacement, no special tools required\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"ro-section\"\u003e\n\u003cdiv class=\"ro-label\"\u003eCOMPATIBILITY \u0026amp; APPLICATIONS\u003c\/div\u003e\n\u003ch2 class=\"ro-title\"\u003eSystem Fitment\u003c\/h2\u003e\n\u003cp\u003eThe Watts Premier 105331 membrane is engineered specifically for the RO-PURE and WP-RO4 reverse osmosis systems. This membrane will not fit Watts 1\/4 Turn KWIK Change filter housings or other manufacturer systems. It is designed for residential point-of-use applications where municipal or well water requires reduction of dissolved solids, heavy metals like lead and arsenic, and microbiological cysts. Ideal for under-sink installations in homes, small offices, and light commercial settings where daily water consumption does not exceed 50 gallons.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"pro-tip\"\u003e\n💧 Membrane life is directly tied to pre-filter maintenance. Replace your sediment and carbon pre-filters on schedule to protect the RO membrane from fouling and maximize its 2–5 year lifespan. Neglecting upstream filters is the most common cause of premature membrane failure.\n\u003c\/div\u003e\n\n\u003c\/div\u003e","brand":"Watts","offers":[{"title":"Default Title","offer_id":35471868461218,"sku":"F105331","price":131.28,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0446\/7677\/6098\/files\/watts-premier-105331-ro-pure-50-gpd-membrane-852119.jpg?v=1791926942"},{"product_id":"watts-premier-105311-ro-pure-sediment-filter","title":"Watts Premier (105311) RO PURE Sediment Filter","description":"\n\u003clink href=\"https:\/\/fonts.googleapis.com\/css2?family=DM+Serif+Display:ital@0;1\u0026amp;family=DM+Sans:wght@300;400;500;600\u0026amp;display=swap\" rel=\"stylesheet\"\u003e\n\u003cstyle\u003e\n .ro-wrap {\n --deep:#0a1628;--ocean:#0f3460;--blue:#1565c0;--sky:#2196f3;--aqua:#4dd0e1;\n --white:#ffffff;--offwhite:#f2f7fc;--slate:#dce8f5;--text:#0d1f38;--muted:#4a6280;\n --gold:#f59e0b;--radius:12px;\n font-family:'DM Sans',sans-serif;color:var(--text);line-height:1.6;-webkit-font-smoothing:antialiased;overflow-wrap:break-word;word-break:break-word;min-width:0;\n }\n .ro-wrap .ro-hero{background:linear-gradient(135deg,var(--deep) 0%,var(--ocean) 50%,#1a5276 100%);color:var(--white);padding:52px 40px 44px;position:relative;overflow:hidden;border-radius:var(--radius) var(--radius) 0 0;}\n .ro-wrap .ro-hero::before{content:'';position:absolute;inset:0;background:radial-gradient(ellipse 70% 55% at 95% 45%,rgba(77,208,225,.15) 0%,transparent 65%),radial-gradient(ellipse 40% 40% at 5% 80%,rgba(255,255,255,.05) 0%,transparent 60%);pointer-events:none;}\n .ro-wrap .ro-eyebrow{font-size:13px !important;font-weight:600;letter-spacing:.18em;text-transform:uppercase;color:var(--aqua);margin-bottom:12px;}\n .ro-wrap .ro-hero h2{font-family:'DM Serif Display',serif;font-size:clamp(26px,4vw,40px) !important;line-height:1.15;font-weight:400;margin-bottom:16px;color:var(--white);}\n .ro-wrap .ro-hero h2 em{font-style:italic;color:var(--aqua);}\n .ro-wrap .ro-tagline{font-size:18px !important;color:rgba(255,255,255,.75);font-weight:300;margin-bottom:28px;}\n .ro-wrap .ro-badges{display:flex;flex-wrap:wrap;gap:10px;}\n .ro-wrap .ro-badge{display:inline-flex;align-items:center;gap:6px;background:rgba(255,255,255,.12);border:1px solid rgba(255,255,255,.2);color:var(--white);font-size:15px !important;font-weight:500;padding:6px 14px;border-radius:40px;backdrop-filter:blur(6px);}\n .ro-wrap .ro-callout{background:var(--offwhite);border-left:4px solid var(--sky);padding:20px 24px;}\n .ro-wrap .ro-callout p{font-size:18px !important;color:var(--text);line-height:1.7;margin:0;}\n .ro-wrap .ro-callout strong{color:var(--ocean);}\n .ro-wrap .ro-section{padding:36px 40px;border-bottom:1px solid var(--slate);}\n .ro-wrap .ro-label{font-size:13px !important;font-weight:700;letter-spacing:.2em;text-transform:uppercase;color:var(--sky);margin-bottom:8px;}\n .ro-wrap .ro-title{font-family:'DM Serif Display',serif;font-size:24px !important;color:var(--deep);margin-bottom:20px;font-weight:400;}\n .ro-wrap .stage-pipeline{display:flex;flex-direction:column;gap:0;margin-top:4px;}\n .ro-wrap .stage-row{display:flex;flex-direction:row;gap:12px;position:relative;min-width:0;align-items:flex-start;width:100%;box-sizing:border-box;}\n .ro-wrap .stage-row:not(:last-child) .stage-line{position:absolute;left:17px;top:40px;bottom:0;width:2px;background:var(--slate);}\n .ro-wrap .stage-num{width:36px;height:36px;min-width:36px;max-width:36px;border-radius:50%;background:linear-gradient(135deg,var(--ocean),var(--sky));color:white;display:flex;align-items:center;justify-content:center;font-size:16px !important;font-weight:700;flex:0 0 36px;position:relative;z-index:1;margin-top:16px;}\n .ro-wrap .stage-body{background:var(--offwhite);border:1px solid var(--slate);border-radius:var(--radius);padding:16px 18px;margin-bottom:12px;flex:1 1 0;min-width:0;overflow:hidden;overflow-wrap:break-word;word-break:break-word;box-sizing:border-box;}\n .ro-wrap .stage-body h3{font-size:20px !important;font-weight:600;color:var(--deep);margin-bottom:8px;margin-top:6px;}\n .ro-wrap .stage-tag{display:block;font-size:12px !important;font-weight:700;letter-spacing:.04em;text-transform:uppercase;background:var(--slate);color:var(--ocean);padding:3px 8px;border-radius:4px;margin-bottom:8px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;max-width:100%;line-height:1.5 !important;box-sizing:border-box;}\n .ro-wrap .stage-body p{font-size:18px !important;color:var(--muted);line-height:1.6;margin:0;display:block;}\n .ro-wrap .stage-body .stage-part{font-size:15px !important;color:var(--sky);margin-top:6px;font-weight:500;}\n .ro-wrap .specs-table{width:100%;border-collapse:collapse;font-size:18px !important;}\n .ro-wrap .specs-table tr{border-bottom:1px solid var(--slate);}\n .ro-wrap .specs-table tr:last-child{border-bottom:none;}\n .ro-wrap .specs-table td{padding:11px 6px;vertical-align:top;}\n .ro-wrap .specs-table td:first-child{font-weight:500;color:var(--deep);width:44%;padding-right:16px;}\n .ro-wrap .specs-table td:last-child{color:var(--muted);}\n .ro-wrap .specs-table tr:hover td{background:var(--offwhite);}\n .ro-wrap .conditions-table{width:100%;border-collapse:collapse;font-size:18px !important;margin-top:4px;}\n .ro-wrap .conditions-table th{background:var(--deep);color:var(--white);font-size:15px !important;font-weight:600;letter-spacing:.06em;text-transform:uppercase;padding:10px 12px;text-align:left;}\n .ro-wrap .conditions-table th:first-child{border-radius:var(--radius) 0 0 0;}\n .ro-wrap .conditions-table th:last-child{border-radius:0 var(--radius) 0 0;}\n .ro-wrap .conditions-table td{padding:10px 12px;border-bottom:1px solid var(--slate);color:var(--text);}\n .ro-wrap .conditions-table tr:nth-child(even) td{background:var(--offwhite);}\n .ro-wrap .ro-feature-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(min(220px,100%),1fr));gap:16px;margin-top:4px;}\n .ro-wrap .ro-feature-card{background:var(--offwhite);border:1px solid var(--slate);border-radius:var(--radius);padding:20px 18px;}\n .ro-wrap .ro-feat-icon{width:40px;height:40px;background:linear-gradient(135deg,var(--ocean),var(--sky));border-radius:10px;display:flex;align-items:center;justify-content:center;margin-bottom:12px;}\n .ro-wrap .ro-feature-card h3{font-size:20px !important;font-weight:600;color:var(--deep);margin-bottom:6px;}\n .ro-wrap .ro-feature-card p{font-size:18px !important;color:var(--muted);line-height:1.55;margin:0;}\n .ro-wrap .pro-tip{display:block;background:#fffbeb;border:1px solid #f5d87a;border-radius:var(--radius);padding:18px 20px;margin-top:20px;box-sizing:border-box;width:100% !important;}\n .ro-wrap .pro-tip-icon{font-size:22px !important;display:inline;margin-right:8px;line-height:1.6 !important;}\n .ro-wrap .pro-tip p{font-size:18px !important;color:#5a4500;line-height:1.6 !important;margin:0;display:block;width:100%;}\n .ro-wrap .pro-tip strong{color:#3d2e00;}\n .ro-wrap .install-steps{counter-reset:step;list-style:none;padding:0;margin:4px 0 0;display:flex;flex-direction:column;gap:14px;}\n .ro-wrap .install-steps li{counter-increment:step;display:flex;align-items:flex-start;gap:14px;font-size:18px !important;color:var(--text);}\n .ro-wrap .install-steps li::before{content:counter(step);display:flex;align-items:center;justify-content:center;width:28px;height:28px;border-radius:50%;background:var(--ocean);color:white;font-size:15px !important;font-weight:700;flex-shrink:0;margin-top:1px;}\n .ro-wrap .filter-schedule{display:grid;grid-template-columns:repeat(auto-fill,minmax(min(180px,100%),1fr));gap:12px;margin-top:4px;}\n .ro-wrap .schedule-card{background:var(--offwhite);border:1px solid var(--slate);border-radius:var(--radius);padding:16px;}\n .ro-wrap .schedule-card .interval{font-size:22px !important;font-family:'DM Serif Display',serif;color:var(--sky);font-weight:400;margin-bottom:4px;}\n .ro-wrap .schedule-card h4{font-size:18px !important;font-weight:600;color:var(--deep);margin-bottom:4px;}\n .ro-wrap .schedule-card p{font-size:15px !important;color:var(--muted);margin:0;line-height:1.45;}\n .ro-wrap .benefits-strip{display:flex;flex-wrap:wrap;background:var(--deep);color:var(--white);border-radius:0 0 var(--radius) var(--radius);overflow:hidden;}\n .ro-wrap .benefit-item{flex:1 1 200px;padding:24px 22px;border-right:1px solid rgba(255,255,255,.1);}\n .ro-wrap .benefit-item:last-child{border-right:none;}\n .ro-wrap .bi-icon{font-size:22px !important;margin-bottom:10px;}\n .ro-wrap .benefit-item h4{font-size:15px !important;font-weight:600;color:var(--aqua);margin-bottom:5px;text-transform:uppercase;letter-spacing:.05em;}\n .ro-wrap .benefit-item p{font-size:15px !important;color:rgba(255,255,255,.65);line-height:1.55;margin:0;}\n .ro-wrap .faucet-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(min(200px,100%),1fr));gap:16px;margin-top:4px;}\n .ro-wrap .faucet-card{border:2px solid var(--slate);border-radius:var(--radius);padding:18px;text-align:center;}\n .ro-wrap .faucet-icon{font-size:28px !important;margin-bottom:10px;}\n .ro-wrap .faucet-card h4{font-size:18px !important;font-weight:600;color:var(--deep);margin-bottom:6px;}\n .ro-wrap .faucet-card p{font-size:15px !important;color:var(--muted);line-height:1.5;margin:0;}\n .ro-wrap .spec-cards{display:grid;grid-template-columns:repeat(auto-fill,minmax(min(180px,100%),1fr));gap:12px;margin-top:4px;}\n .ro-wrap .spec-card{background:var(--offwhite);border:1px solid var(--slate);border-radius:var(--radius);padding:16px;}\n .ro-wrap .spec-card .sc-label{font-size:13px !important;font-weight:700;letter-spacing:.08em;color:var(--sky);text-transform:uppercase;margin-bottom:4px;}\n .ro-wrap .spec-card .sc-value{font-size:20px !important;font-weight:600;color:var(--deep);margin-bottom:4px;}\n .ro-wrap .spec-card .sc-note{font-size:15px !important;color:var(--muted);}\n @media(max-width:640px){\n .ro-wrap .ro-hero{padding:36px 24px 32px;}\n .ro-wrap .ro-section{padding:28px 20px;}\n .ro-wrap .ro-feature-grid,.ro-wrap .faucet-grid,.ro-wrap .filter-schedule,.ro-wrap .spec-cards{grid-template-columns:1fr;}\n .ro-wrap .benefits-strip{flex-direction:column;}\n .ro-wrap .benefit-item{border-right:none;border-bottom:1px solid rgba(255,255,255,.1);}\n }\n \/* ── Nuclear override — force all text inside ro-wrap to be readable ── *\/\n .ro-wrap p,\n .ro-wrap li,\n .ro-wrap td,\n .ro-wrap th,\n .ro-wrap .ro-section \u003e p {\n font-size: 18px !important;\n line-height: 1.6 !important;\n }\n .ro-wrap .ro-section \u003e p,\n .ro-wrap .ro-callout p,\n .ro-wrap .stage-body p,\n .ro-wrap .ro-feature-card p,\n .ro-wrap .schedule-card p,\n .ro-wrap .faucet-card p,\n .ro-wrap .spec-card .sc-note,\n .ro-wrap .pro-tip p {\n font-size: 18px !important;\n line-height: 1.6 !important;\n }\n .ro-wrap h2 { font-size: clamp(26px,4vw,40px) !important; line-height:1.15 !important; }\n .ro-wrap h3 { font-size: 20px !important; line-height:1.3 !important; }\n .ro-wrap h4 { font-size: 18px !important; line-height:1.3 !important; }\n .ro-wrap .ro-label,\n .ro-wrap .stage-tag,\n .ro-wrap .sc-label { font-size: 14px !important; }\n .ro-wrap .ro-title { font-size: 24px !important; }\n .ro-wrap .interval { font-size: 22px !important; }\n .ro-wrap .stage-num { font-size: 16px !important; }\n .ro-wrap .ro-eyebrow { font-size: 14px !important; }\n .ro-wrap .ro-badge { font-size: 15px !important; }\n\u003c\/style\u003e\n\u003cdiv class=\"ro-wrap\"\u003e\n\n\u003cdiv class=\"ro-hero\"\u003e\n\u003cdiv class=\"ro-eyebrow\"\u003eWatts Premier\u003c\/div\u003e\n\u003ch2\u003eRO PURE Sediment Filter (105311)\u003c\/h2\u003e\n\u003cdiv class=\"ro-tagline\"\u003e5-micron meltblown sediment cartridge for RO-4 and UF3 systems\u003c\/div\u003e\n\u003cdiv class=\"ro-badges\"\u003e\n\u003cspan class=\"ro-badge\"\u003e5 Micron\u003c\/span\u003e\n\u003cspan class=\"ro-badge\"\u003e11-Inch Cartridge\u003c\/span\u003e\n\u003cspan class=\"ro-badge\"\u003e6-Month Service\u003c\/span\u003e\n\u003cspan class=\"ro-badge\"\u003e1350 Gallons\u003c\/span\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"ro-callout\"\u003e\n\u003cp\u003eThe Watts Premier 105311 is a stage-one sediment filter designed for the RO PURE (RO-4) and Filter-Pure (UF3) systems. Its 5-micron meltblown polypropylene media traps dirt, silt, rust, and particulate matter before they reach your membrane or downstream filters.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"ro-section\"\u003e\n\u003cdiv class=\"ro-label\"\u003eWHAT IT DOES\u003c\/div\u003e\n\u003cdiv class=\"ro-title\"\u003eFirst-Stage Sediment Removal\u003c\/div\u003e\n\u003cp\u003eThis filter removes suspended particles down to 5 microns—roughly the size of milled flour. It protects downstream filters and membranes from clogging, extends system life, and improves water clarity and taste. Rated for 1350 gallons or six months of typical household use, whichever comes first.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"ro-section\"\u003e\n\u003cdiv class=\"ro-label\"\u003eSPECIFICATIONS\u003c\/div\u003e\n\u003cdiv class=\"ro-title\"\u003eFilter Details\u003c\/div\u003e\n\u003ctable class=\"specs-table\"\u003e\n\u003ctr\u003e\n\u003ctd class=\"spec-label\"\u003eModel Number\u003c\/td\u003e\n\u003ctd class=\"spec-value\"\u003e105311 (F531411)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"spec-label\"\u003eFiltration Rating\u003c\/td\u003e\n\u003ctd class=\"spec-value\"\u003e5 micron\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"spec-label\"\u003eMedia Type\u003c\/td\u003e\n\u003ctd class=\"spec-value\"\u003eMeltblown polypropylene\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"spec-label\"\u003eDimensions\u003c\/td\u003e\n\u003ctd class=\"spec-value\"\u003e11\" H × 2\" W × 2\" D\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"spec-label\"\u003eService Life\u003c\/td\u003e\n\u003ctd class=\"spec-value\"\u003e6 months or 1350 gallons\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"spec-label\"\u003eReplacement Stage\u003c\/td\u003e\n\u003ctd class=\"spec-value\"\u003eStage 1\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"ro-section\"\u003e\n\u003cdiv class=\"ro-label\"\u003eCOMPATIBILITY\u003c\/div\u003e\n\u003cdiv class=\"ro-title\"\u003eFits These Systems\u003c\/div\u003e\n\u003cp\u003eThis filter is designed exclusively for the Watts Premier RO PURE (RO-4) reverse osmosis system and the Filter-Pure (UF3) filtration system. It uses a proprietary housing design and will not fit the Watts 1\/4 Turn KWIK Change filter systems or standard 10-inch housings.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003c\/div\u003e","brand":"Watts","offers":[{"title":"Default Title","offer_id":35471870492834,"sku":"F105311","price":22.75,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0446\/7677\/6098\/files\/watts-premier-105311-ro-pure-sediment-filter-352714.jpg?v=1791926941"},{"product_id":"watts-premier-105351-ro-pure-carbon-pre-filter","title":"Watts Premier (105351) RO PURE Carbon Pre-Filter","description":"\n\u003clink href=\"https:\/\/fonts.googleapis.com\/css2?family=DM+Serif+Display:ital@0;1\u0026amp;family=DM+Sans:wght@300;400;500;600\u0026amp;display=swap\" rel=\"stylesheet\"\u003e\n\u003cstyle\u003e\n .ro-wrap {\n --deep:#0a1628;--ocean:#0f3460;--blue:#1565c0;--sky:#2196f3;--aqua:#4dd0e1;\n --white:#ffffff;--offwhite:#f2f7fc;--slate:#dce8f5;--text:#0d1f38;--muted:#4a6280;\n --gold:#f59e0b;--radius:12px;\n font-family:'DM Sans',sans-serif;color:var(--text);line-height:1.6;-webkit-font-smoothing:antialiased;overflow-wrap:break-word;word-break:break-word;min-width:0;\n }\n .ro-wrap .ro-hero{background:linear-gradient(135deg,var(--deep) 0%,var(--ocean) 50%,#1a5276 100%);color:var(--white);padding:52px 40px 44px;position:relative;overflow:hidden;border-radius:var(--radius) var(--radius) 0 0;}\n .ro-wrap .ro-hero::before{content:'';position:absolute;inset:0;background:radial-gradient(ellipse 70% 55% at 95% 45%,rgba(77,208,225,.15) 0%,transparent 65%),radial-gradient(ellipse 40% 40% at 5% 80%,rgba(255,255,255,.05) 0%,transparent 60%);pointer-events:none;}\n .ro-wrap .ro-eyebrow{font-size:13px !important;font-weight:600;letter-spacing:.18em;text-transform:uppercase;color:var(--aqua);margin-bottom:12px;}\n .ro-wrap .ro-hero h2{font-family:'DM Serif Display',serif;font-size:clamp(26px,4vw,40px) !important;line-height:1.15;font-weight:400;margin-bottom:16px;color:var(--white);}\n .ro-wrap .ro-hero h2 em{font-style:italic;color:var(--aqua);}\n .ro-wrap .ro-tagline{font-size:18px !important;color:rgba(255,255,255,.75);font-weight:300;margin-bottom:28px;}\n .ro-wrap .ro-badges{display:flex;flex-wrap:wrap;gap:10px;}\n .ro-wrap .ro-badge{display:inline-flex;align-items:center;gap:6px;background:rgba(255,255,255,.12);border:1px solid rgba(255,255,255,.2);color:var(--white);font-size:15px !important;font-weight:500;padding:6px 14px;border-radius:40px;backdrop-filter:blur(6px);}\n .ro-wrap .ro-callout{background:var(--offwhite);border-left:4px solid var(--sky);padding:20px 24px;}\n .ro-wrap .ro-callout p{font-size:18px !important;color:var(--text);line-height:1.7;margin:0;}\n .ro-wrap .ro-callout strong{color:var(--ocean);}\n .ro-wrap .ro-section{padding:36px 40px;border-bottom:1px solid var(--slate);}\n .ro-wrap .ro-label{font-size:13px !important;font-weight:700;letter-spacing:.2em;text-transform:uppercase;color:var(--sky);margin-bottom:8px;}\n .ro-wrap .ro-title{font-family:'DM Serif Display',serif;font-size:24px !important;color:var(--deep);margin-bottom:20px;font-weight:400;}\n .ro-wrap .stage-pipeline{display:flex;flex-direction:column;gap:0;margin-top:4px;}\n .ro-wrap .stage-row{display:flex;flex-direction:row;gap:12px;position:relative;min-width:0;align-items:flex-start;width:100%;box-sizing:border-box;}\n .ro-wrap .stage-row:not(:last-child) .stage-line{position:absolute;left:17px;top:40px;bottom:0;width:2px;background:var(--slate);}\n .ro-wrap .stage-num{width:36px;height:36px;min-width:36px;max-width:36px;border-radius:50%;background:linear-gradient(135deg,var(--ocean),var(--sky));color:white;display:flex;align-items:center;justify-content:center;font-size:16px !important;font-weight:700;flex:0 0 36px;position:relative;z-index:1;margin-top:16px;}\n .ro-wrap .stage-body{background:var(--offwhite);border:1px solid var(--slate);border-radius:var(--radius);padding:16px 18px;margin-bottom:12px;flex:1 1 0;min-width:0;overflow:hidden;overflow-wrap:break-word;word-break:break-word;box-sizing:border-box;}\n .ro-wrap .stage-body h3{font-size:20px !important;font-weight:600;color:var(--deep);margin-bottom:8px;margin-top:6px;}\n .ro-wrap .stage-tag{display:block;font-size:12px !important;font-weight:700;letter-spacing:.04em;text-transform:uppercase;background:var(--slate);color:var(--ocean);padding:3px 8px;border-radius:4px;margin-bottom:8px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;max-width:100%;line-height:1.5 !important;box-sizing:border-box;}\n .ro-wrap .stage-body p{font-size:18px !important;color:var(--muted);line-height:1.6;margin:0;display:block;}\n .ro-wrap .stage-body .stage-part{font-size:15px !important;color:var(--sky);margin-top:6px;font-weight:500;}\n .ro-wrap .specs-table{width:100%;border-collapse:collapse;font-size:18px !important;}\n .ro-wrap .specs-table tr{border-bottom:1px solid var(--slate);}\n .ro-wrap .specs-table tr:last-child{border-bottom:none;}\n .ro-wrap .specs-table td{padding:11px 6px;vertical-align:top;}\n .ro-wrap .specs-table td:first-child{font-weight:500;color:var(--deep);width:44%;padding-right:16px;}\n .ro-wrap .specs-table td:last-child{color:var(--muted);}\n .ro-wrap .specs-table tr:hover td{background:var(--offwhite);}\n .ro-wrap .conditions-table{width:100%;border-collapse:collapse;font-size:18px !important;margin-top:4px;}\n .ro-wrap .conditions-table th{background:var(--deep);color:var(--white);font-size:15px !important;font-weight:600;letter-spacing:.06em;text-transform:uppercase;padding:10px 12px;text-align:left;}\n .ro-wrap .conditions-table th:first-child{border-radius:var(--radius) 0 0 0;}\n .ro-wrap .conditions-table th:last-child{border-radius:0 var(--radius) 0 0;}\n .ro-wrap .conditions-table td{padding:10px 12px;border-bottom:1px solid var(--slate);color:var(--text);}\n .ro-wrap .conditions-table tr:nth-child(even) td{background:var(--offwhite);}\n .ro-wrap .ro-feature-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(min(220px,100%),1fr));gap:16px;margin-top:4px;}\n .ro-wrap .ro-feature-card{background:var(--offwhite);border:1px solid var(--slate);border-radius:var(--radius);padding:20px 18px;}\n .ro-wrap .ro-feat-icon{width:40px;height:40px;background:linear-gradient(135deg,var(--ocean),var(--sky));border-radius:10px;display:flex;align-items:center;justify-content:center;margin-bottom:12px;}\n .ro-wrap .ro-feature-card h3{font-size:20px !important;font-weight:600;color:var(--deep);margin-bottom:6px;}\n .ro-wrap .ro-feature-card p{font-size:18px !important;color:var(--muted);line-height:1.55;margin:0;}\n .ro-wrap .pro-tip{display:block;background:#fffbeb;border:1px solid #f5d87a;border-radius:var(--radius);padding:18px 20px;margin-top:20px;box-sizing:border-box;width:100% !important;}\n .ro-wrap .pro-tip-icon{font-size:22px !important;display:inline;margin-right:8px;line-height:1.6 !important;}\n .ro-wrap .pro-tip p{font-size:18px !important;color:#5a4500;line-height:1.6 !important;margin:0;display:block;width:100%;}\n .ro-wrap .pro-tip strong{color:#3d2e00;}\n .ro-wrap .install-steps{counter-reset:step;list-style:none;padding:0;margin:4px 0 0;display:flex;flex-direction:column;gap:14px;}\n .ro-wrap .install-steps li{counter-increment:step;display:flex;align-items:flex-start;gap:14px;font-size:18px !important;color:var(--text);}\n .ro-wrap .install-steps li::before{content:counter(step);display:flex;align-items:center;justify-content:center;width:28px;height:28px;border-radius:50%;background:var(--ocean);color:white;font-size:15px !important;font-weight:700;flex-shrink:0;margin-top:1px;}\n .ro-wrap .filter-schedule{display:grid;grid-template-columns:repeat(auto-fill,minmax(min(180px,100%),1fr));gap:12px;margin-top:4px;}\n .ro-wrap .schedule-card{background:var(--offwhite);border:1px solid var(--slate);border-radius:var(--radius);padding:16px;}\n .ro-wrap .schedule-card .interval{font-size:22px !important;font-family:'DM Serif Display',serif;color:var(--sky);font-weight:400;margin-bottom:4px;}\n .ro-wrap .schedule-card h4{font-size:18px !important;font-weight:600;color:var(--deep);margin-bottom:4px;}\n .ro-wrap .schedule-card p{font-size:15px !important;color:var(--muted);margin:0;line-height:1.45;}\n .ro-wrap .benefits-strip{display:flex;flex-wrap:wrap;background:var(--deep);color:var(--white);border-radius:0 0 var(--radius) var(--radius);overflow:hidden;}\n .ro-wrap .benefit-item{flex:1 1 200px;padding:24px 22px;border-right:1px solid rgba(255,255,255,.1);}\n .ro-wrap .benefit-item:last-child{border-right:none;}\n .ro-wrap .bi-icon{font-size:22px !important;margin-bottom:10px;}\n .ro-wrap .benefit-item h4{font-size:15px !important;font-weight:600;color:var(--aqua);margin-bottom:5px;text-transform:uppercase;letter-spacing:.05em;}\n .ro-wrap .benefit-item p{font-size:15px !important;color:rgba(255,255,255,.65);line-height:1.55;margin:0;}\n .ro-wrap .faucet-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(min(200px,100%),1fr));gap:16px;margin-top:4px;}\n .ro-wrap .faucet-card{border:2px solid var(--slate);border-radius:var(--radius);padding:18px;text-align:center;}\n .ro-wrap .faucet-icon{font-size:28px !important;margin-bottom:10px;}\n .ro-wrap .faucet-card h4{font-size:18px !important;font-weight:600;color:var(--deep);margin-bottom:6px;}\n .ro-wrap .faucet-card p{font-size:15px !important;color:var(--muted);line-height:1.5;margin:0;}\n .ro-wrap .spec-cards{display:grid;grid-template-columns:repeat(auto-fill,minmax(min(180px,100%),1fr));gap:12px;margin-top:4px;}\n .ro-wrap .spec-card{background:var(--offwhite);border:1px solid var(--slate);border-radius:var(--radius);padding:16px;}\n .ro-wrap .spec-card .sc-label{font-size:13px !important;font-weight:700;letter-spacing:.08em;color:var(--sky);text-transform:uppercase;margin-bottom:4px;}\n .ro-wrap .spec-card .sc-value{font-size:20px !important;font-weight:600;color:var(--deep);margin-bottom:4px;}\n .ro-wrap .spec-card .sc-note{font-size:15px !important;color:var(--muted);}\n @media(max-width:640px){\n .ro-wrap .ro-hero{padding:36px 24px 32px;}\n .ro-wrap .ro-section{padding:28px 20px;}\n .ro-wrap .ro-feature-grid,.ro-wrap .faucet-grid,.ro-wrap .filter-schedule,.ro-wrap .spec-cards{grid-template-columns:1fr;}\n .ro-wrap .benefits-strip{flex-direction:column;}\n .ro-wrap .benefit-item{border-right:none;border-bottom:1px solid rgba(255,255,255,.1);}\n }\n \/* ── Nuclear override — force all text inside ro-wrap to be readable ── *\/\n .ro-wrap p,\n .ro-wrap li,\n .ro-wrap td,\n .ro-wrap th,\n .ro-wrap .ro-section \u003e p {\n font-size: 18px !important;\n line-height: 1.6 !important;\n }\n .ro-wrap .ro-section \u003e p,\n .ro-wrap .ro-callout p,\n .ro-wrap .stage-body p,\n .ro-wrap .ro-feature-card p,\n .ro-wrap .schedule-card p,\n .ro-wrap .faucet-card p,\n .ro-wrap .spec-card .sc-note,\n .ro-wrap .pro-tip p {\n font-size: 18px !important;\n line-height: 1.6 !important;\n }\n .ro-wrap h2 { font-size: clamp(26px,4vw,40px) !important; line-height:1.15 !important; }\n .ro-wrap h3 { font-size: 20px !important; line-height:1.3 !important; }\n .ro-wrap h4 { font-size: 18px !important; line-height:1.3 !important; }\n .ro-wrap .ro-label,\n .ro-wrap .stage-tag,\n .ro-wrap .sc-label { font-size: 14px !important; }\n .ro-wrap .ro-title { font-size: 24px !important; }\n .ro-wrap .interval { font-size: 22px !important; }\n .ro-wrap .stage-num { font-size: 16px !important; }\n .ro-wrap .ro-eyebrow { font-size: 14px !important; }\n .ro-wrap .ro-badge { font-size: 15px !important; }\n\u003c\/style\u003e\n\u003cdiv class=\"ro-wrap\"\u003e\n\n\u003cdiv class=\"ro-callout\"\u003e\nThe Watts Premier 105351 RO PURE Carbon Pre-Filter is a 5-micron activated carbon block designed to reduce chlorine taste and odor before water reaches your reverse osmosis membrane. This genuine Watts Premier replacement extends membrane life and ensures consistent water quality in RO-PURE and RO-4 systems.\n\u003c\/div\u003e\n\n\u003cdiv class=\"ro-section\"\u003e\n\u003cdiv class=\"ro-label\"\u003eSPECIFICATIONS\u003c\/div\u003e\n\u003ch2 class=\"ro-title\"\u003eWatts Premier 105351 Technical Details\u003c\/h2\u003e\n\u003ctable class=\"specs-table\"\u003e\n\u003ctr\u003e\n\u003ctd\u003eModel Number\u003c\/td\u003e\n\u003ctd\u003eWatts Premier 105351 (F531411)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFilter Type\u003c\/td\u003e\n\u003ctd\u003eActivated Carbon Block\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMicron Rating\u003c\/td\u003e\n\u003ctd\u003e5 Micron\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003e9 7\/8\" x 2\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFilter Life\u003c\/td\u003e\n\u003ctd\u003e6 months (varies by water quality)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePrimary Function\u003c\/td\u003e\n\u003ctd\u003eChlorine reduction and water conditioning\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCompatibility\u003c\/td\u003e\n\u003ctd\u003eWatts Premier RO-PURE and RO-4 systems\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInstallation\u003c\/td\u003e\n\u003ctd\u003eStandard twist-in (NOT compatible with 1\/4 Turn KWIK Change)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"ro-section\"\u003e\n\u003cdiv class=\"ro-label\"\u003eINSTALLATION \u0026amp; USE\u003c\/div\u003e\n\u003ch2 class=\"ro-title\"\u003eReplacing Your RO PURE Carbon Pre-Filter\u003c\/h2\u003e\n\u003col class=\"install-steps\"\u003e\n\u003cli\u003eTurn off water supply to the RO system and relieve pressure by opening the storage tank valve.\u003c\/li\u003e\n\u003cli\u003eTwist the old carbon pre-filter counterclockwise to remove it from the manifold, then discard.\u003c\/li\u003e\n\u003cli\u003eLubricate the O-rings on the new Watts Premier 105351 filter with clean water or food-grade silicone grease.\u003c\/li\u003e\n\u003cli\u003eInsert the new filter into the manifold and twist clockwise until hand-tight and fully seated.\u003c\/li\u003e\n\u003cli\u003eTurn water supply back on, check for leaks, and flush the system for 5 minutes before use.\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"ro-section\"\u003e\n\u003cdiv class=\"ro-label\"\u003eCOMPATIBILITY\u003c\/div\u003e\n\u003ch2 class=\"ro-title\"\u003eSystem Compatibility\u003c\/h2\u003e\n\u003cp\u003eThis Watts Premier 105351 carbon pre-filter is designed exclusively for the Watts Premier RO-PURE and RO-4 reverse osmosis systems. It uses a proprietary 11-inch form factor and will not fit standard 10-inch housings or the Watts 1\/4 Turn KWIK Change filter system. Confirm your system model before ordering to ensure proper fit.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"pro-tip\"\u003e\n🔧 \u003cstrong\u003ePro Tip:\u003c\/strong\u003e Replace the carbon pre-filter every six months even if water taste seems fine. Chlorine breakthrough damages RO membranes long before you notice flavor changes, and a $20 filter replacement is far cheaper than a $100 membrane.\n\u003c\/div\u003e\n\n\u003c\/div\u003e","brand":"Watts","offers":[{"title":"Default Title","offer_id":35471870853282,"sku":"F105351","price":33.08,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0446\/7677\/6098\/files\/watts-premier-105351-ro-pure-carbon-pre-filter-970770.jpg?v=1791926941"},{"product_id":"watts-premier-105381-ro-pure-voc-carbon-filter","title":"Watts Premier (105381) RO PURE VOC Carbon Filter","description":"\n\u003clink href=\"https:\/\/fonts.googleapis.com\/css2?family=DM+Serif+Display:ital@0;1\u0026amp;family=DM+Sans:wght@300;400;500;600\u0026amp;display=swap\" rel=\"stylesheet\"\u003e\n\u003cstyle\u003e\n .ro-wrap {\n --deep:#0a1628;--ocean:#0f3460;--blue:#1565c0;--sky:#2196f3;--aqua:#4dd0e1;\n 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!important;font-weight:700;letter-spacing:.08em;color:var(--sky);text-transform:uppercase;margin-bottom:4px;}\n .ro-wrap .spec-card .sc-value{font-size:20px !important;font-weight:600;color:var(--deep);margin-bottom:4px;}\n .ro-wrap .spec-card .sc-note{font-size:15px !important;color:var(--muted);}\n @media(max-width:640px){\n .ro-wrap .ro-hero{padding:36px 24px 32px;}\n .ro-wrap .ro-section{padding:28px 20px;}\n .ro-wrap .ro-feature-grid,.ro-wrap .faucet-grid,.ro-wrap .filter-schedule,.ro-wrap .spec-cards{grid-template-columns:1fr;}\n .ro-wrap .benefits-strip{flex-direction:column;}\n .ro-wrap .benefit-item{border-right:none;border-bottom:1px solid rgba(255,255,255,.1);}\n }\n \/* ── Nuclear override — force all text inside ro-wrap to be readable ── *\/\n .ro-wrap p,\n .ro-wrap li,\n .ro-wrap td,\n .ro-wrap th,\n .ro-wrap .ro-section \u003e p {\n font-size: 18px !important;\n line-height: 1.6 !important;\n }\n .ro-wrap .ro-section \u003e p,\n .ro-wrap .ro-callout p,\n .ro-wrap .stage-body p,\n .ro-wrap .ro-feature-card p,\n .ro-wrap .schedule-card p,\n .ro-wrap .faucet-card p,\n .ro-wrap .spec-card .sc-note,\n .ro-wrap .pro-tip p {\n font-size: 18px !important;\n line-height: 1.6 !important;\n }\n .ro-wrap h2 { font-size: clamp(26px,4vw,40px) !important; line-height:1.15 !important; }\n .ro-wrap h3 { font-size: 20px !important; line-height:1.3 !important; }\n .ro-wrap h4 { font-size: 18px !important; line-height:1.3 !important; }\n .ro-wrap .ro-label,\n .ro-wrap .stage-tag,\n .ro-wrap .sc-label { font-size: 14px !important; }\n .ro-wrap .ro-title { font-size: 24px !important; }\n .ro-wrap .interval { font-size: 22px !important; }\n .ro-wrap .stage-num { font-size: 16px !important; }\n .ro-wrap .ro-eyebrow { font-size: 14px !important; }\n .ro-wrap .ro-badge { font-size: 15px !important; }\n\u003c\/style\u003e\n\u003cdiv class=\"ro-wrap\"\u003e\n\n\u003cdiv class=\"ro-callout\"\u003e\nThe Watts Premier 105381 RO PURE VOC Carbon Filter is a high-capacity carbon block filter engineered to reduce volatile organic compounds including herbicides, pesticides, TTHMs, and DPBs in RO-Pure Plus systems. This NSF\/ANSI 53 certified filter delivers 600 gallons or one year of protection against contaminants that affect approximately 20% of the nation's water supplies.\n\u003c\/div\u003e\n\n\u003cdiv class=\"ro-section\"\u003e\n\u003cdiv class=\"ro-label\"\u003eSPECIFICATIONS\u003c\/div\u003e\n\u003ch2 class=\"ro-title\"\u003eWatts Premier 105381 Technical Details\u003c\/h2\u003e\n\u003ctable class=\"specs-table\"\u003e\n\u003ctr\u003e\n\u003ctd\u003eModel Number\u003c\/td\u003e\n\u003ctd\u003e105381 (F531411)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFilter Type\u003c\/td\u003e\n\u003ctd\u003eCarbon Block VOC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCapacity\u003c\/td\u003e\n\u003ctd\u003e600 gallons \/ 12 months\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFlow Rate\u003c\/td\u003e\n\u003ctd\u003e0.5 GPM (1.89 LPM)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003e9.875 in × 2 in (11 inch housing)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCertification\u003c\/td\u003e\n\u003ctd\u003eNSF\/ANSI 53 for VOC Reduction\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eContaminant Reduction\u003c\/td\u003e\n\u003ctd\u003eVOCs, herbicides, pesticides, TTHMs, DPBs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHousing Size\u003c\/td\u003e\n\u003ctd\u003eProprietary (Watts Premier)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"ro-section\"\u003e\n\u003cdiv class=\"ro-label\"\u003eINSTALLATION \u0026amp; USE\u003c\/div\u003e\n\u003ch2 class=\"ro-title\"\u003eFilter Replacement Procedure\u003c\/h2\u003e\n\u003col class=\"install-steps\"\u003e\n\u003cli\u003eShut off water supply to your RO-Pure Plus system and relieve system pressure by opening the dispensing faucet\u003c\/li\u003e\n\u003cli\u003eUnscrew the filter housing and remove the spent 105381 carbon filter cartridge\u003c\/li\u003e\n\u003cli\u003eInsert the new Watts Premier VOC carbon filter into the housing, ensuring proper seating and o-ring alignment\u003c\/li\u003e\n\u003cli\u003eHand-tighten the housing, restore water supply, and check for leaks before flushing the filter for 5 minutes\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"ro-section\"\u003e\n\u003cdiv class=\"ro-label\"\u003eCOMPATIBILITY\u003c\/div\u003e\n\u003ch2 class=\"ro-title\"\u003eSystem Requirements\u003c\/h2\u003e\n\u003cp\u003eThe Watts Premier 105381 (F531411) is designed exclusively for use with Watts Premier RO-Pure Plus reverse osmosis systems equipped with 11 inch proprietary filter housings. This carbon block filter is particularly critical for households with water supplies affected by agricultural runoff, fuel storage contamination, or proximity to dry-cleaning facilities. Filter life may vary based on source water VOC concentration and household water usage patterns.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"pro-tip\"\u003e\n🔧 \u003cstrong\u003ePro Tip:\u003c\/strong\u003e VOCs are often odorless and colorless, making them impossible to detect without testing. If you live in an agricultural area or near gas stations, underground storage tanks, or industrial sites, annual replacement of this filter is essential regardless of taste or odor changes in your water.\n\u003c\/div\u003e\n\n\u003c\/div\u003e","brand":"Watts","offers":[{"title":"Single","offer_id":42666775969963,"sku":"F105381","price":45.0,"currency_code":"USD","in_stock":true},{"title":"Pack of 2","offer_id":42666776002731,"sku":"2x F105381","price":80.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0446\/7677\/6098\/files\/watts-premier-105381-ro-pure-voc-carbon-filter-205907.jpg?v=1791926941"},{"product_id":"watts-premier-531102-ro-pure-filter-kit-six-month-filter-kit","title":"Watts Premier (531102) RO PURE Filter Kit Six Month Filter Kit","description":"\n\u003clink href=\"https:\/\/fonts.googleapis.com\/css2?family=DM+Serif+Display:ital@0;1\u0026amp;family=DM+Sans:wght@300;400;500;600\u0026amp;display=swap\" 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li::before{content:counter(step);display:flex;align-items:center;justify-content:center;width:28px;height:28px;border-radius:50%;background:var(--ocean);color:white;font-size:15px !important;font-weight:700;flex-shrink:0;margin-top:1px;}\n .ro-wrap .filter-schedule{display:grid;grid-template-columns:repeat(auto-fill,minmax(min(180px,100%),1fr));gap:12px;margin-top:4px;}\n .ro-wrap .schedule-card{background:var(--offwhite);border:1px solid var(--slate);border-radius:var(--radius);padding:16px;}\n .ro-wrap .schedule-card .interval{font-size:22px !important;font-family:'DM Serif Display',serif;color:var(--sky);font-weight:400;margin-bottom:4px;}\n .ro-wrap .schedule-card h4{font-size:18px !important;font-weight:600;color:var(--deep);margin-bottom:4px;}\n .ro-wrap .schedule-card p{font-size:15px !important;color:var(--muted);margin:0;line-height:1.45;}\n .ro-wrap .benefits-strip{display:flex;flex-wrap:wrap;background:var(--deep);color:var(--white);border-radius:0 0 var(--radius) var(--radius);overflow:hidden;}\n .ro-wrap .benefit-item{flex:1 1 200px;padding:24px 22px;border-right:1px solid rgba(255,255,255,.1);}\n .ro-wrap .benefit-item:last-child{border-right:none;}\n .ro-wrap .bi-icon{font-size:22px !important;margin-bottom:10px;}\n .ro-wrap .benefit-item h4{font-size:15px !important;font-weight:600;color:var(--aqua);margin-bottom:5px;text-transform:uppercase;letter-spacing:.05em;}\n .ro-wrap .benefit-item p{font-size:15px !important;color:rgba(255,255,255,.65);line-height:1.55;margin:0;}\n .ro-wrap .faucet-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(min(200px,100%),1fr));gap:16px;margin-top:4px;}\n .ro-wrap .faucet-card{border:2px solid var(--slate);border-radius:var(--radius);padding:18px;text-align:center;}\n .ro-wrap .faucet-icon{font-size:28px !important;margin-bottom:10px;}\n .ro-wrap .faucet-card h4{font-size:18px !important;font-weight:600;color:var(--deep);margin-bottom:6px;}\n .ro-wrap .faucet-card p{font-size:15px !important;color:var(--muted);line-height:1.5;margin:0;}\n .ro-wrap .spec-cards{display:grid;grid-template-columns:repeat(auto-fill,minmax(min(180px,100%),1fr));gap:12px;margin-top:4px;}\n .ro-wrap .spec-card{background:var(--offwhite);border:1px solid var(--slate);border-radius:var(--radius);padding:16px;}\n .ro-wrap .spec-card .sc-label{font-size:13px !important;font-weight:700;letter-spacing:.08em;color:var(--sky);text-transform:uppercase;margin-bottom:4px;}\n .ro-wrap .spec-card .sc-value{font-size:20px !important;font-weight:600;color:var(--deep);margin-bottom:4px;}\n .ro-wrap .spec-card .sc-note{font-size:15px !important;color:var(--muted);}\n @media(max-width:640px){\n .ro-wrap .ro-hero{padding:36px 24px 32px;}\n .ro-wrap .ro-section{padding:28px 20px;}\n .ro-wrap .ro-feature-grid,.ro-wrap .faucet-grid,.ro-wrap .filter-schedule,.ro-wrap .spec-cards{grid-template-columns:1fr;}\n .ro-wrap .benefits-strip{flex-direction:column;}\n .ro-wrap .benefit-item{border-right:none;border-bottom:1px solid rgba(255,255,255,.1);}\n }\n \/* ── Nuclear override — force all text inside ro-wrap to be readable ── *\/\n .ro-wrap p,\n .ro-wrap li,\n .ro-wrap td,\n .ro-wrap th,\n .ro-wrap .ro-section \u003e p {\n font-size: 18px !important;\n line-height: 1.6 !important;\n }\n .ro-wrap .ro-section \u003e p,\n .ro-wrap .ro-callout p,\n .ro-wrap .stage-body p,\n .ro-wrap .ro-feature-card p,\n .ro-wrap .schedule-card p,\n .ro-wrap .faucet-card p,\n .ro-wrap .spec-card .sc-note,\n .ro-wrap .pro-tip p {\n font-size: 18px !important;\n line-height: 1.6 !important;\n }\n .ro-wrap h2 { font-size: clamp(26px,4vw,40px) !important; line-height:1.15 !important; }\n .ro-wrap h3 { font-size: 20px !important; line-height:1.3 !important; }\n .ro-wrap h4 { font-size: 18px !important; line-height:1.3 !important; }\n .ro-wrap .ro-label,\n .ro-wrap .stage-tag,\n .ro-wrap .sc-label { font-size: 14px !important; }\n .ro-wrap .ro-title { font-size: 24px !important; }\n .ro-wrap .interval { font-size: 22px !important; }\n .ro-wrap .stage-num { font-size: 16px !important; }\n .ro-wrap .ro-eyebrow { font-size: 14px !important; }\n .ro-wrap .ro-badge { font-size: 15px !important; }\n\u003c\/style\u003e\n\u003cdiv class=\"ro-wrap\"\u003e\n\n\u003cdiv class=\"ro-callout\"\u003e\nThe Watts Premier 531102 RO PURE Filter Kit delivers six months of reliable pre-filtration for your RO-PURE reverse osmosis system. This three-filter replacement set includes one 5-micron sediment filter and two 5-micron carbon blocks engineered to protect your membrane and improve water clarity.\n\u003c\/div\u003e\n\n\u003cdiv class=\"ro-section\"\u003e\n\u003cdiv class=\"ro-label\"\u003eSPECIFICATIONS\u003c\/div\u003e\n\u003ch2 class=\"ro-title\"\u003eWatts Premier 531102 Filter Kit Details\u003c\/h2\u003e\n\u003ctable class=\"specs-table\"\u003e\n\u003ctr\u003e\n\u003ctd\u003eModel Number\u003c\/td\u003e\n\u003ctd\u003e531102 (F531411)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCompatibility\u003c\/td\u003e\n\u003ctd\u003eWatts Premier RO-PURE \/ WP-RO4 systems only\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSediment Filter\u003c\/td\u003e\n\u003ctd\u003e1 × 5-micron sediment cartridge (11 inch)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCarbon Filters\u003c\/td\u003e\n\u003ctd\u003e2 × 5-micron activated carbon pre-filters (11 inch)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePrimary Function\u003c\/td\u003e\n\u003ctd\u003eRemoves sediment, chlorine taste, odors, and membrane contaminants\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eReplacement Interval\u003c\/td\u003e\n\u003ctd\u003eEvery 6 months (varies by water quality and usage)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFilter Standard\u003c\/td\u003e\n\u003ctd\u003e11-inch proprietary RO-PURE housing format\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNot Compatible With\u003c\/td\u003e\n\u003ctd\u003eWatts 1\/4 Turn KWIK Change systems\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"ro-section\"\u003e\n\u003cdiv class=\"ro-label\"\u003eINSTALLATION \u0026amp; USE\u003c\/div\u003e\n\u003ch2 class=\"ro-title\"\u003eHow to Replace Your RO-PURE Filters\u003c\/h2\u003e\n\u003col class=\"install-steps\"\u003e\n\u003cli\u003eShut off the water supply to your RO-PURE system and relieve pressure by opening the dispensing faucet.\u003c\/li\u003e\n\u003cli\u003eRemove the filter housings using the provided wrench, then discard the old sediment and carbon filters.\u003c\/li\u003e\n\u003cli\u003eInstall the new 5-micron sediment filter in the first stage housing and the two carbon filters in stages two and three.\u003c\/li\u003e\n\u003cli\u003eHand-tighten the housings back into place, turn the water supply back on, and check for leaks.\u003c\/li\u003e\n\u003cli\u003eFlush the system for 5 minutes before resuming normal use to remove carbon fines and activate the filters.\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"ro-section\"\u003e\n\u003cdiv class=\"ro-label\"\u003eCOMPATIBILITY\u003c\/div\u003e\n\u003ch2 class=\"ro-title\"\u003eWorks Exclusively with Watts Premier RO-PURE Systems\u003c\/h2\u003e\n\u003cp\u003eThe Watts 531102 filter kit is designed specifically for the RO-PURE and WP-RO4 reverse osmosis systems using 11-inch proprietary filter housings. This kit will not fit standard 10-inch filter housings, Watts KWIK Change systems, or other brands of reverse osmosis equipment. Verify your system model before ordering to ensure proper fit.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"pro-tip\"\u003e\n🔧 \u003cstrong\u003ePro tip:\u003c\/strong\u003e Mark your calendar or set a phone reminder when you install this kit. Filter performance degrades gradually, and waiting beyond six months can allow sediment buildup that shortens membrane life and reduces flow rate.\n\u003c\/div\u003e\n\n\u003c\/div\u003e","brand":"Watts","offers":[{"title":"Default Title","offer_id":35471871312034,"sku":"F531102","price":32.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0446\/7677\/6098\/files\/watts-premier-531102-ro-pure-filter-kit-six-month-filter-kit-806700.jpg?v=1791926941"},{"product_id":"watts-wqc4ro11-50mtnf-4-stage-kwik-change-ro-system-50-gpd-w-metal-tank","title":"Watts (WQC4RO11-50MTNF) 4 Stage KWIK CHANGE RO System 50 GPD w- Metal Tank","description":"\n\u003clink href=\"https:\/\/fonts.googleapis.com\/css2?family=DM+Serif+Display:ital@0;1\u0026amp;family=DM+Sans:wght@300;400;500;600\u0026amp;display=swap\" rel=\"stylesheet\"\u003e\n\u003cstyle\u003e\n .ro-wrap {\n --deep:#0a1628;--ocean:#0f3460;--blue:#1565c0;--sky:#2196f3;--aqua:#4dd0e1;\n 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Display',serif;font-size:clamp(26px,4vw,40px) !important;line-height:1.15;font-weight:400;margin-bottom:16px;color:var(--white);}\n .ro-wrap .ro-hero h2 em{font-style:italic;color:var(--aqua);}\n .ro-wrap .ro-tagline{font-size:18px !important;color:rgba(255,255,255,.75);font-weight:300;margin-bottom:28px;}\n .ro-wrap .ro-badges{display:flex;flex-wrap:wrap;gap:10px;}\n .ro-wrap .ro-badge{display:inline-flex;align-items:center;gap:6px;background:rgba(255,255,255,.12);border:1px solid rgba(255,255,255,.2);color:var(--white);font-size:15px !important;font-weight:500;padding:6px 14px;border-radius:40px;backdrop-filter:blur(6px);}\n .ro-wrap .ro-callout{background:var(--offwhite);border-left:4px solid var(--sky);padding:20px 24px;}\n .ro-wrap .ro-callout p{font-size:18px !important;color:var(--text);line-height:1.7;margin:0;}\n .ro-wrap .ro-callout strong{color:var(--ocean);}\n .ro-wrap .ro-section{padding:36px 40px;border-bottom:1px solid var(--slate);}\n .ro-wrap .ro-label{font-size:13px !important;font-weight:700;letter-spacing:.2em;text-transform:uppercase;color:var(--sky);margin-bottom:8px;}\n .ro-wrap .ro-title{font-family:'DM Serif Display',serif;font-size:24px !important;color:var(--deep);margin-bottom:20px;font-weight:400;}\n .ro-wrap .stage-pipeline{display:flex;flex-direction:column;gap:0;margin-top:4px;}\n .ro-wrap .stage-row{display:flex;flex-direction:row;gap:12px;position:relative;min-width:0;align-items:flex-start;width:100%;box-sizing:border-box;}\n .ro-wrap .stage-row:not(:last-child) .stage-line{position:absolute;left:17px;top:40px;bottom:0;width:2px;background:var(--slate);}\n .ro-wrap .stage-num{width:36px;height:36px;min-width:36px;max-width:36px;border-radius:50%;background:linear-gradient(135deg,var(--ocean),var(--sky));color:white;display:flex;align-items:center;justify-content:center;font-size:16px !important;font-weight:700;flex:0 0 36px;position:relative;z-index:1;margin-top:16px;}\n .ro-wrap .stage-body{background:var(--offwhite);border:1px solid var(--slate);border-radius:var(--radius);padding:16px 18px;margin-bottom:12px;flex:1 1 0;min-width:0;overflow:hidden;overflow-wrap:break-word;word-break:break-word;box-sizing:border-box;}\n .ro-wrap .stage-body h3{font-size:20px !important;font-weight:600;color:var(--deep);margin-bottom:8px;margin-top:6px;}\n .ro-wrap .stage-tag{display:block;font-size:12px !important;font-weight:700;letter-spacing:.04em;text-transform:uppercase;background:var(--slate);color:var(--ocean);padding:3px 8px;border-radius:4px;margin-bottom:8px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;max-width:100%;line-height:1.5 !important;box-sizing:border-box;}\n .ro-wrap .stage-body p{font-size:18px !important;color:var(--muted);line-height:1.6;margin:0;display:block;}\n .ro-wrap .stage-body .stage-part{font-size:15px !important;color:var(--sky);margin-top:6px;font-weight:500;}\n .ro-wrap .specs-table{width:100%;border-collapse:collapse;font-size:18px !important;}\n .ro-wrap .specs-table tr{border-bottom:1px solid var(--slate);}\n .ro-wrap .specs-table tr:last-child{border-bottom:none;}\n .ro-wrap .specs-table td{padding:11px 6px;vertical-align:top;}\n .ro-wrap .specs-table td:first-child{font-weight:500;color:var(--deep);width:44%;padding-right:16px;}\n .ro-wrap .specs-table td:last-child{color:var(--muted);}\n .ro-wrap .specs-table tr:hover td{background:var(--offwhite);}\n .ro-wrap .conditions-table{width:100%;border-collapse:collapse;font-size:18px !important;margin-top:4px;}\n .ro-wrap .conditions-table th{background:var(--deep);color:var(--white);font-size:15px !important;font-weight:600;letter-spacing:.06em;text-transform:uppercase;padding:10px 12px;text-align:left;}\n .ro-wrap .conditions-table th:first-child{border-radius:var(--radius) 0 0 0;}\n .ro-wrap .conditions-table th:last-child{border-radius:0 var(--radius) 0 0;}\n .ro-wrap .conditions-table td{padding:10px 12px;border-bottom:1px solid var(--slate);color:var(--text);}\n .ro-wrap .conditions-table tr:nth-child(even) td{background:var(--offwhite);}\n .ro-wrap .ro-feature-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(min(220px,100%),1fr));gap:16px;margin-top:4px;}\n .ro-wrap .ro-feature-card{background:var(--offwhite);border:1px solid var(--slate);border-radius:var(--radius);padding:20px 18px;}\n .ro-wrap .ro-feat-icon{width:40px;height:40px;background:linear-gradient(135deg,var(--ocean),var(--sky));border-radius:10px;display:flex;align-items:center;justify-content:center;margin-bottom:12px;}\n .ro-wrap .ro-feature-card h3{font-size:20px !important;font-weight:600;color:var(--deep);margin-bottom:6px;}\n .ro-wrap .ro-feature-card p{font-size:18px !important;color:var(--muted);line-height:1.55;margin:0;}\n .ro-wrap .pro-tip{display:block;background:#fffbeb;border:1px solid #f5d87a;border-radius:var(--radius);padding:18px 20px;margin-top:20px;box-sizing:border-box;width:100% !important;}\n .ro-wrap .pro-tip-icon{font-size:22px 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p{font-size:15px !important;color:rgba(255,255,255,.65);line-height:1.55;margin:0;}\n .ro-wrap .faucet-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(min(200px,100%),1fr));gap:16px;margin-top:4px;}\n .ro-wrap .faucet-card{border:2px solid var(--slate);border-radius:var(--radius);padding:18px;text-align:center;}\n .ro-wrap .faucet-icon{font-size:28px !important;margin-bottom:10px;}\n .ro-wrap .faucet-card h4{font-size:18px !important;font-weight:600;color:var(--deep);margin-bottom:6px;}\n .ro-wrap .faucet-card p{font-size:15px !important;color:var(--muted);line-height:1.5;margin:0;}\n .ro-wrap .spec-cards{display:grid;grid-template-columns:repeat(auto-fill,minmax(min(180px,100%),1fr));gap:12px;margin-top:4px;}\n .ro-wrap .spec-card{background:var(--offwhite);border:1px solid var(--slate);border-radius:var(--radius);padding:16px;}\n .ro-wrap .spec-card .sc-label{font-size:13px !important;font-weight:700;letter-spacing:.08em;color:var(--sky);text-transform:uppercase;margin-bottom:4px;}\n .ro-wrap .spec-card .sc-value{font-size:20px !important;font-weight:600;color:var(--deep);margin-bottom:4px;}\n .ro-wrap .spec-card .sc-note{font-size:15px !important;color:var(--muted);}\n @media(max-width:640px){\n .ro-wrap .ro-hero{padding:36px 24px 32px;}\n .ro-wrap .ro-section{padding:28px 20px;}\n .ro-wrap .ro-feature-grid,.ro-wrap .faucet-grid,.ro-wrap .filter-schedule,.ro-wrap .spec-cards{grid-template-columns:1fr;}\n .ro-wrap .benefits-strip{flex-direction:column;}\n .ro-wrap .benefit-item{border-right:none;border-bottom:1px solid rgba(255,255,255,.1);}\n }\n \/* ── Nuclear override — force all text inside ro-wrap to be readable ── *\/\n .ro-wrap p,\n .ro-wrap li,\n .ro-wrap td,\n .ro-wrap th,\n .ro-wrap .ro-section \u003e p {\n font-size: 18px !important;\n line-height: 1.6 !important;\n }\n .ro-wrap .ro-section \u003e p,\n .ro-wrap .ro-callout p,\n .ro-wrap .stage-body p,\n .ro-wrap .ro-feature-card p,\n .ro-wrap .schedule-card p,\n .ro-wrap .faucet-card p,\n .ro-wrap .spec-card .sc-note,\n .ro-wrap .pro-tip p {\n font-size: 18px !important;\n line-height: 1.6 !important;\n }\n .ro-wrap h2 { font-size: clamp(26px,4vw,40px) !important; line-height:1.15 !important; }\n .ro-wrap h3 { font-size: 20px !important; line-height:1.3 !important; }\n .ro-wrap h4 { font-size: 18px !important; line-height:1.3 !important; }\n .ro-wrap .ro-label,\n .ro-wrap .stage-tag,\n .ro-wrap .sc-label { font-size: 14px !important; }\n .ro-wrap .ro-title { font-size: 24px !important; }\n .ro-wrap .interval { font-size: 22px !important; }\n .ro-wrap .stage-num { font-size: 16px !important; }\n .ro-wrap .ro-eyebrow { font-size: 14px !important; }\n .ro-wrap .ro-badge { font-size: 15px !important; }\n\u003c\/style\u003e\n\u003cdiv class=\"ro-wrap\"\u003e\n \u003cdiv class=\"ro-callout\"\u003e\n The Watts WQC4RO11-50MTNF delivers 50 gallons per day of purified water through a four-stage reverse osmosis system with tool-free cartridge changes. The KWIK CHANGE design eliminates traditional filter sumps, making maintenance faster and cleaner than conventional RO systems.\n \u003c\/div\u003e\n\n \u003cdiv class=\"ro-section\"\u003e\n \u003cdiv class=\"ro-label\"\u003eSPECIFICATIONS\u003c\/div\u003e\n \u003ch2 class=\"ro-title\"\u003eWatts WQC4RO11-50MTNF Technical Details\u003c\/h2\u003e\n \u003ctable class=\"specs-table\"\u003e\n \u003ctr\u003e\n \u003ctd\u003eModel Number\u003c\/td\u003e\n \u003ctd\u003eWQC4RO11-50MTNF\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003ctd\u003eProduction Rate\u003c\/td\u003e\n \u003ctd\u003e50 GPD\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003ctd\u003eFiltration Stages\u003c\/td\u003e\n \u003ctd\u003e4-Stage System\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003ctd\u003eStorage Tank\u003c\/td\u003e\n \u003ctd\u003e3.2 Gallon Metal Tank\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003ctd\u003eMaximum TDS\u003c\/td\u003e\n \u003ctd\u003e2,000 PPM\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003ctd\u003eOperating Pressure\u003c\/td\u003e\n \u003ctd\u003e100 PSI Maximum\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003ctd\u003eCertification\u003c\/td\u003e\n \u003ctd\u003eWQA Gold Seal, NSF\/ANSI 58\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003ctd\u003eConnection Type\u003c\/td\u003e\n \u003ctd\u003eQuick Connect Fittings\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003c\/table\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"ro-section\"\u003e\n \u003cdiv class=\"ro-label\"\u003eFILTRATION PROCESS\u003c\/div\u003e\n \u003ch2 class=\"ro-title\"\u003eFour-Stage Purification\u003c\/h2\u003e\n \u003cdiv class=\"stage-pipeline\"\u003e\n \u003cdiv class=\"stage-item\"\u003e\n \u003cdiv class=\"stage-tag\"\u003eSEDIMENT\u003c\/div\u003e\n \u003cdiv class=\"stage-desc\"\u003ePre-filter captures sand, silt, and rust particles to protect downstream filters\u003c\/div\u003e\n \u003c\/div\u003e\n \u003cdiv class=\"stage-item\"\u003e\n \u003cdiv class=\"stage-tag\"\u003eCARBON\u003c\/div\u003e\n \u003cdiv class=\"stage-desc\"\u003ePre-filter reduces chlorine, taste, and odor compounds from municipal water\u003c\/div\u003e\n \u003c\/div\u003e\n \u003cdiv class=\"stage-item\"\u003e\n \u003cdiv class=\"stage-tag\"\u003eMEMBRANE\u003c\/div\u003e\n \u003cdiv class=\"stage-desc\"\u003eRO membrane removes up to 99% of TDS, lead, and dissolved contaminants\u003c\/div\u003e\n \u003c\/div\u003e\n \u003cdiv class=\"stage-item\"\u003e\n \u003cdiv class=\"stage-tag\"\u003ePOLISH\u003c\/div\u003e\n \u003cdiv class=\"stage-desc\"\u003eCarbon post-filter refines taste and removes any residual odors before dispensing\u003c\/div\u003e\n \u003c\/div\u003e\n \u003c\/div\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"ro-section\"\u003e\n \u003cdiv class=\"ro-label\"\u003eINSTALLATION \u0026amp; USE\u003c\/div\u003e\n \u003ch2 class=\"ro-title\"\u003eSetup and Maintenance\u003c\/h2\u003e\n \u003col class=\"install-steps\"\u003e\n \u003cli\u003eMount the manifold assembly under the sink and position the metal storage tank in an accessible location with the quick connect fittings facing the manifold.\u003c\/li\u003e\n \u003cli\u003eConnect the feed water line to the inlet using the included quick connect fittings, then attach the drain line and storage tank connections to the appropriate ports.\u003c\/li\u003e\n \u003cli\u003eInstall all four KWIK CHANGE cartridges by aligning and twisting a quarter turn clockwise until they lock into place with the double o-ring seals.\u003c\/li\u003e\n \u003cli\u003eOpen the feed water valve slowly and check all connections for leaks while the system pressurizes and begins filling the storage tank.\u003c\/li\u003e\n \u003cli\u003eReplace cartridges by turning a quarter turn counterclockwise to remove, then installing new filters with a quarter turn clockwise—no tools or sump wrenches required.\u003c\/li\u003e\n \u003c\/ol\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"ro-section\"\u003e\n \u003cdiv class=\"ro-label\"\u003eCOMPATIBILITY\u003c\/div\u003e\n \u003ch2 class=\"ro-title\"\u003eSystem Requirements\u003c\/h2\u003e\n \u003cp\u003eThe Watts WQC4RO11-50MTNF is designed for residential point-of-use installation on municipal or well water supplies with TDS levels up to 2,000 PPM. The system requires inlet water pressure between 40 and 100 PSI for optimal performance. All KWIK CHANGE cartridges are proprietary to Watts systems and use quarter-turn installation without traditional filter sumps. The included metal storage tank provides more durability than standard composite tanks and works with any standard RO faucet with 1\/4-inch tubing connections. This system is suitable for households with moderate water usage, producing approximately 50 gallons per day under standard conditions.\u003c\/p\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"pro-tip\"\u003e\n 🔧 \u003cstrong\u003ePro Tip:\u003c\/strong\u003e The built-in check valves in each cartridge head prevent backflow automatically, but always close the feed water valve before removing cartridges to avoid spillage. Mark your calendar for filter changes when you install—sediment and carbon pre-filters typically need replacement every 6-12 months, while the RO membrane can last 2-3 years depending on water quality.\n \u003c\/div\u003e\n\u003c\/div\u003e","brand":"Watts","offers":[{"title":"No Facuet","offer_id":35471893823650,"sku":"WQC4RO11-50MTNF","price":646.25,"currency_code":"USD","in_stock":true},{"title":"Chrome Faucet","offer_id":35471893856418,"sku":"WQC4RO11-50MT-C","price":620.0,"currency_code":"USD","in_stock":true},{"title":"Brushed Nickel Faucet","offer_id":35471893889186,"sku":"WQC4RO11-50MT-BN","price":620.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0446\/7677\/6098\/files\/product-5537029095586-padded.jpg?v=1777271012"},{"product_id":"watts-wqc4ro13-100mt-4-stage-kwik-change-ro-system-100-gpd-w-metal-tank","title":"Watts (WQC4RO13-100MT) 4 Stage KWIK CHANGE RO System 100 GPD w- Metal Tank","description":"\n\u003clink 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var(--radius);overflow:hidden;}\n .ro-wrap .benefit-item{flex:1 1 200px;padding:24px 22px;border-right:1px solid rgba(255,255,255,.1);}\n .ro-wrap .benefit-item:last-child{border-right:none;}\n .ro-wrap .bi-icon{font-size:22px !important;margin-bottom:10px;}\n .ro-wrap .benefit-item h4{font-size:15px !important;font-weight:600;color:var(--aqua);margin-bottom:5px;text-transform:uppercase;letter-spacing:.05em;}\n .ro-wrap .benefit-item p{font-size:15px !important;color:rgba(255,255,255,.65);line-height:1.55;margin:0;}\n .ro-wrap .faucet-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(min(200px,100%),1fr));gap:16px;margin-top:4px;}\n .ro-wrap .faucet-card{border:2px solid var(--slate);border-radius:var(--radius);padding:18px;text-align:center;}\n .ro-wrap .faucet-icon{font-size:28px !important;margin-bottom:10px;}\n .ro-wrap .faucet-card h4{font-size:18px !important;font-weight:600;color:var(--deep);margin-bottom:6px;}\n .ro-wrap .faucet-card p{font-size:15px !important;color:var(--muted);line-height:1.5;margin:0;}\n .ro-wrap .spec-cards{display:grid;grid-template-columns:repeat(auto-fill,minmax(min(180px,100%),1fr));gap:12px;margin-top:4px;}\n .ro-wrap .spec-card{background:var(--offwhite);border:1px solid var(--slate);border-radius:var(--radius);padding:16px;}\n .ro-wrap .spec-card .sc-label{font-size:13px !important;font-weight:700;letter-spacing:.08em;color:var(--sky);text-transform:uppercase;margin-bottom:4px;}\n .ro-wrap .spec-card .sc-value{font-size:20px !important;font-weight:600;color:var(--deep);margin-bottom:4px;}\n .ro-wrap .spec-card .sc-note{font-size:15px !important;color:var(--muted);}\n @media(max-width:640px){\n .ro-wrap .ro-hero{padding:36px 24px 32px;}\n .ro-wrap .ro-section{padding:28px 20px;}\n .ro-wrap .ro-feature-grid,.ro-wrap .faucet-grid,.ro-wrap .filter-schedule,.ro-wrap .spec-cards{grid-template-columns:1fr;}\n .ro-wrap .benefits-strip{flex-direction:column;}\n .ro-wrap .benefit-item{border-right:none;border-bottom:1px solid rgba(255,255,255,.1);}\n }\n \/* ── Nuclear override — force all text inside ro-wrap to be readable ── *\/\n .ro-wrap p,\n .ro-wrap li,\n .ro-wrap td,\n .ro-wrap th,\n .ro-wrap .ro-section \u003e p {\n font-size: 18px !important;\n line-height: 1.6 !important;\n }\n .ro-wrap .ro-section \u003e p,\n .ro-wrap .ro-callout p,\n .ro-wrap .stage-body p,\n .ro-wrap .ro-feature-card p,\n .ro-wrap .schedule-card p,\n .ro-wrap .faucet-card p,\n .ro-wrap .spec-card .sc-note,\n .ro-wrap .pro-tip p {\n font-size: 18px !important;\n line-height: 1.6 !important;\n }\n .ro-wrap h2 { font-size: clamp(26px,4vw,40px) !important; line-height:1.15 !important; }\n .ro-wrap h3 { font-size: 20px !important; line-height:1.3 !important; }\n .ro-wrap h4 { font-size: 18px !important; line-height:1.3 !important; }\n .ro-wrap .ro-label,\n .ro-wrap .stage-tag,\n .ro-wrap .sc-label { font-size: 14px !important; }\n .ro-wrap .ro-title { font-size: 24px !important; }\n .ro-wrap .interval { font-size: 22px !important; }\n .ro-wrap .stage-num { font-size: 16px !important; }\n .ro-wrap .ro-eyebrow { font-size: 14px !important; }\n .ro-wrap .ro-badge { font-size: 15px !important; }\n\u003c\/style\u003e\n\u003cdiv class=\"ro-wrap\"\u003e\n \u003cdiv class=\"ro-hero\"\u003e\n \u003cdiv class=\"ro-eyebrow\"\u003eWatts WQC4RO13-100MT\u003c\/div\u003e\n \u003ch2\u003e4-Stage Kwik-Change RO System with Metal Tank\u003c\/h2\u003e\n \u003cdiv class=\"ro-tagline\"\u003e100 GPD residential reverse osmosis system with tool-free cartridge changes and NSF\/ANSI 58 certification\u003c\/div\u003e\n \u003cdiv class=\"ro-badges\"\u003e\n \u003cspan class=\"ro-badge\"\u003e100 GPD Production\u003c\/span\u003e\n \u003cspan class=\"ro-badge\"\u003eNSF\/ANSI 58 Certified\u003c\/span\u003e\n \u003cspan class=\"ro-badge\"\u003e4.4 Gallon Metal Tank\u003c\/span\u003e\n \u003cspan class=\"ro-badge\"\u003eQuarter-Turn Cartridges\u003c\/span\u003e\n \u003c\/div\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"ro-callout\"\u003e\n The Watts WQC4RO13-100MT eliminates the mess and frustration of traditional RO systems by using proprietary Kwik-Change cartridges that twist on and off without tools, sumps, or spillage. With a 100 gallons per day membrane, four-stage filtration process, and durable metal storage tank, this system delivers consistent high-purity water for households that prioritize both performance and ease of maintenance.\n \u003c\/div\u003e\n\n \u003cdiv class=\"ro-section\"\u003e\n \u003cdiv class=\"ro-label\"\u003eHOW IT WORKS\u003c\/div\u003e\n \u003ch3 class=\"ro-title\"\u003eFour-Stage Filtration Process\u003c\/h3\u003e\n \u003cdiv class=\"stage-pipeline\"\u003e\n \u003cdiv class=\"stage-row\"\u003e\n \u003cdiv class=\"stage-line\"\u003e\u003c\/div\u003e\n \u003cdiv class=\"stage-num\"\u003e1\u003c\/div\u003e\n \u003cdiv class=\"stage-body\"\u003e\n \u003cspan class=\"stage-tag\"\u003eSEDIMENT\u003c\/span\u003e\n \u003ch3\u003eParticulate Removal\u003c\/h3\u003e\n \u003cp\u003eThe WQCSC11 sediment filter captures dirt, rust, silt, and suspended solids down to 5 microns, protecting downstream cartridges and the RO membrane from premature fouling.\u003c\/p\u003e\n \u003cspan class=\"stage-part\"\u003eReplace every 6-12 months\u003c\/span\u003e\n \u003c\/div\u003e\n \u003c\/div\u003e\n \u003cdiv class=\"stage-row\"\u003e\n \u003cdiv class=\"stage-line\"\u003e\u003c\/div\u003e\n \u003cdiv class=\"stage-num\"\u003e2\u003c\/div\u003e\n \u003cdiv class=\"stage-body\"\u003e\n \u003cspan class=\"stage-tag\"\u003eCARBON\u003c\/span\u003e\n \u003ch3\u003eChlorine and Chemical Reduction\u003c\/h3\u003e\n \u003cp\u003eThe WQCCC11 carbon block filter removes chlorine, chloramines, taste and odor compounds, and volatile organic chemicals that would otherwise damage the reverse osmosis membrane.\u003c\/p\u003e\n \u003cspan class=\"stage-part\"\u003eReplace every 6-12 months\u003c\/span\u003e\n \u003c\/div\u003e\n \u003c\/div\u003e\n \u003cdiv class=\"stage-row\"\u003e\n \u003cdiv class=\"stage-line\"\u003e\u003c\/div\u003e\n \u003cdiv class=\"stage-num\"\u003e3\u003c\/div\u003e\n \u003cdiv class=\"stage-body\"\u003e\n \u003cspan class=\"stage-tag\"\u003eMEMBRANE\u003c\/span\u003e\n \u003ch3\u003eReverse Osmosis Separation\u003c\/h3\u003e\n \u003cp\u003eThe WQCM11-50 RO membrane operates at 100 GPD, rejecting dissolved solids, heavy metals, fluoride, nitrates, and microorganisms down to 0.0001 microns for water up to 2,000 PPM TDS.\u003c\/p\u003e\n \u003cspan class=\"stage-part\"\u003eReplace every 24-36 months\u003c\/span\u003e\n \u003c\/div\u003e\n \u003c\/div\u003e\n \u003cdiv class=\"stage-row\"\u003e\n \u003cdiv class=\"stage-line\"\u003e\u003c\/div\u003e\n \u003cdiv class=\"stage-num\"\u003e4\u003c\/div\u003e\n \u003cdiv class=\"stage-body\"\u003e\n \u003cspan class=\"stage-tag\"\u003ePOLISH\u003c\/span\u003e\n \u003ch3\u003eFinal Taste Enhancement\u003c\/h3\u003e\n \u003cp\u003eThe WQCGAC11 granular activated carbon filter polishes stored water as it leaves the tank, removing any residual taste or odor for crisp, clean drinking water at the tap.\u003c\/p\u003e\n \u003cspan class=\"stage-part\"\u003eReplace every 12 months\u003c\/span\u003e\n \u003c\/div\u003e\n \u003c\/div\u003e\n \u003c\/div\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"ro-section\"\u003e\n \u003cdiv class=\"ro-label\"\u003eSYSTEM SPECIFICATIONS\u003c\/div\u003e\n \u003ch3 class=\"ro-title\"\u003eTechnical Details\u003c\/h3\u003e\n \u003ctable class=\"specs-table\"\u003e\n \u003ctr\u003e\n \u003ctd\u003e\u003cstrong\u003eModel Number\u003c\/strong\u003e\u003c\/td\u003e\n \u003ctd\u003eWQC4RO13-100MT\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003ctd\u003e\u003cstrong\u003eProduction Rate\u003c\/strong\u003e\u003c\/td\u003e\n \u003ctd\u003e100 gallons per day\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003ctd\u003e\u003cstrong\u003eFiltration Stages\u003c\/strong\u003e\u003c\/td\u003e\n \u003ctd\u003e4-stage process\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003ctd\u003e\u003cstrong\u003eStorage Tank\u003c\/strong\u003e\u003c\/td\u003e\n \u003ctd\u003e4.4 gallon metal pressure tank\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003ctd\u003e\u003cstrong\u003eMaximum TDS\u003c\/strong\u003e\u003c\/td\u003e\n \u003ctd\u003e2,000 PPM\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003ctd\u003e\u003cstrong\u003eOperating Pressure\u003c\/strong\u003e\u003c\/td\u003e\n \u003ctd\u003e40-100 PSI (minimum 40 PSI required)\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003ctd\u003e\u003cstrong\u003eCertifications\u003c\/strong\u003e\u003c\/td\u003e\n \u003ctd\u003eWQA Gold Seal, NSF\/ANSI Standard 58\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003ctd\u003e\u003cstrong\u003eFilter Dimensions\u003c\/strong\u003e\u003c\/td\u003e\n \u003ctd\u003e11-inch cartridge height\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003ctd\u003e\u003cstrong\u003eConnections\u003c\/strong\u003e\u003c\/td\u003e\n \u003ctd\u003eQuick-connect push fittings\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003ctd\u003e\u003cstrong\u003eIncluded Components\u003c\/strong\u003e\u003c\/td\u003e\n \u003ctd\u003eAll filters, membrane, tubing, tank, hardware, installation kit\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003c\/table\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"ro-section\"\u003e\n \u003cdiv class=\"ro-label\"\u003eWHY KWIK-CHANGE\u003c\/div\u003e\n \u003ch3 class=\"ro-title\"\u003eNo Sumps, No Mess, No Tools\u003c\/h3\u003e\n \u003cp\u003eTraditional reverse osmosis systems require you to unscrew housings with a wrench, spill water across your cabinet floor, and wrestle with O-rings during every filter change. The Watts Kwik-Change design eliminates all of that. Each cartridge locks into a manifold head with a simple quarter-turn twist, and built-in shutoff valves prevent backflow and water spillage when you remove a spent filter. Double O-ring seals on every cartridge ensure leak-free operation without hand-tightening guesswork. The metal storage tank provides superior durability compared to plastic or composite models, resisting corrosion and maintaining consistent pressure over years of service. Quick-connect fittings throughout the system make installation straightforward, and the WQA Gold Seal certification confirms that performance claims meet rigorous third-party testing standards under NSF\/ANSI 58 protocols.\u003c\/p\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"ro-section\"\u003e\n \u003cdiv class=\"ro-label\"\u003eCOMPATIBILITY\u003c\/div\u003e\n \u003ch3 class=\"ro-title\"\u003eResidential Installation Requirements\u003c\/h3\u003e\n \u003cp\u003eThe WQC4RO13-100MT is designed for municipal or well water sources with TDS levels up to 2,000 PPM and requires a minimum supply pressure of 40 PSI for proper membrane performance. The system fits in standard under-sink cabinet spaces and includes all necessary tubing, a dedicated RO faucet, drain saddle, and feed water adapter for typical 1\/2-inch or 3\/8-inch cold water supply lines. Replacement cartridges are model-specific: use Watts WQCSC11 for sediment, WQCCC11 for carbon block, WQCGAC11 for post-carbon,\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"Watts","offers":[{"title":"Default Title","offer_id":35471898345634,"sku":"WQC4RO13-100MT","price":813.39,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0446\/7677\/6098\/files\/product-5537029849250-padded.jpg?v=1777271024"},{"product_id":"watts-wqchfc11-11-kwik-change-ro-hollow-fiber-membrane-uf","title":"Watts (WQCHFC11) 11\" Kwik-Change RO Hollow Fiber Membrane (UF)","description":"\n\u003clink href=\"https:\/\/fonts.googleapis.com\/css2?family=DM+Serif+Display:ital@0;1\u0026amp;family=DM+Sans:wght@300;400;500;600\u0026amp;display=swap\" rel=\"stylesheet\"\u003e\n\u003cstyle\u003e\n .ro-wrap {\n --deep:#0a1628;--ocean:#0f3460;--blue:#1565c0;--sky:#2196f3;--aqua:#4dd0e1;\n --white:#ffffff;--offwhite:#f2f7fc;--slate:#dce8f5;--text:#0d1f38;--muted:#4a6280;\n --gold:#f59e0b;--radius:12px;\n font-family:'DM Sans',sans-serif;color:var(--text);line-height:1.6;-webkit-font-smoothing:antialiased;overflow-wrap:break-word;word-break:break-word;min-width:0;\n }\n .ro-wrap .ro-hero{background:linear-gradient(135deg,var(--deep) 0%,var(--ocean) 50%,#1a5276 100%);color:var(--white);padding:52px 40px 44px;position:relative;overflow:hidden;border-radius:var(--radius) var(--radius) 0 0;}\n .ro-wrap .ro-hero::before{content:'';position:absolute;inset:0;background:radial-gradient(ellipse 70% 55% at 95% 45%,rgba(77,208,225,.15) 0%,transparent 65%),radial-gradient(ellipse 40% 40% at 5% 80%,rgba(255,255,255,.05) 0%,transparent 60%);pointer-events:none;}\n .ro-wrap .ro-eyebrow{font-size:13px !important;font-weight:600;letter-spacing:.18em;text-transform:uppercase;color:var(--aqua);margin-bottom:12px;}\n .ro-wrap .ro-hero h2{font-family:'DM Serif Display',serif;font-size:clamp(26px,4vw,40px) !important;line-height:1.15;font-weight:400;margin-bottom:16px;color:var(--white);}\n .ro-wrap .ro-hero h2 em{font-style:italic;color:var(--aqua);}\n .ro-wrap .ro-tagline{font-size:18px !important;color:rgba(255,255,255,.75);font-weight:300;margin-bottom:28px;}\n .ro-wrap .ro-badges{display:flex;flex-wrap:wrap;gap:10px;}\n .ro-wrap .ro-badge{display:inline-flex;align-items:center;gap:6px;background:rgba(255,255,255,.12);border:1px solid rgba(255,255,255,.2);color:var(--white);font-size:15px !important;font-weight:500;padding:6px 14px;border-radius:40px;backdrop-filter:blur(6px);}\n .ro-wrap .ro-callout{background:var(--offwhite);border-left:4px solid var(--sky);padding:20px 24px;}\n .ro-wrap .ro-callout p{font-size:18px !important;color:var(--text);line-height:1.7;margin:0;}\n .ro-wrap .ro-callout strong{color:var(--ocean);}\n .ro-wrap .ro-section{padding:36px 40px;border-bottom:1px solid var(--slate);}\n .ro-wrap .ro-label{font-size:13px !important;font-weight:700;letter-spacing:.2em;text-transform:uppercase;color:var(--sky);margin-bottom:8px;}\n .ro-wrap .ro-title{font-family:'DM Serif Display',serif;font-size:24px !important;color:var(--deep);margin-bottom:20px;font-weight:400;}\n .ro-wrap .stage-pipeline{display:flex;flex-direction:column;gap:0;margin-top:4px;}\n .ro-wrap .stage-row{display:flex;flex-direction:row;gap:12px;position:relative;min-width:0;align-items:flex-start;width:100%;box-sizing:border-box;}\n .ro-wrap .stage-row:not(:last-child) .stage-line{position:absolute;left:17px;top:40px;bottom:0;width:2px;background:var(--slate);}\n .ro-wrap .stage-num{width:36px;height:36px;min-width:36px;max-width:36px;border-radius:50%;background:linear-gradient(135deg,var(--ocean),var(--sky));color:white;display:flex;align-items:center;justify-content:center;font-size:16px !important;font-weight:700;flex:0 0 36px;position:relative;z-index:1;margin-top:16px;}\n .ro-wrap .stage-body{background:var(--offwhite);border:1px solid var(--slate);border-radius:var(--radius);padding:16px 18px;margin-bottom:12px;flex:1 1 0;min-width:0;overflow:hidden;overflow-wrap:break-word;word-break:break-word;box-sizing:border-box;}\n .ro-wrap .stage-body h3{font-size:20px !important;font-weight:600;color:var(--deep);margin-bottom:8px;margin-top:6px;}\n .ro-wrap .stage-tag{display:block;font-size:12px !important;font-weight:700;letter-spacing:.04em;text-transform:uppercase;background:var(--slate);color:var(--ocean);padding:3px 8px;border-radius:4px;margin-bottom:8px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;max-width:100%;line-height:1.5 !important;box-sizing:border-box;}\n .ro-wrap .stage-body p{font-size:18px !important;color:var(--muted);line-height:1.6;margin:0;display:block;}\n .ro-wrap .stage-body .stage-part{font-size:15px !important;color:var(--sky);margin-top:6px;font-weight:500;}\n .ro-wrap .specs-table{width:100%;border-collapse:collapse;font-size:18px !important;}\n .ro-wrap .specs-table tr{border-bottom:1px solid var(--slate);}\n .ro-wrap .specs-table tr:last-child{border-bottom:none;}\n .ro-wrap .specs-table td{padding:11px 6px;vertical-align:top;}\n .ro-wrap .specs-table td:first-child{font-weight:500;color:var(--deep);width:44%;padding-right:16px;}\n .ro-wrap .specs-table td:last-child{color:var(--muted);}\n .ro-wrap .specs-table tr:hover td{background:var(--offwhite);}\n .ro-wrap .conditions-table{width:100%;border-collapse:collapse;font-size:18px !important;margin-top:4px;}\n .ro-wrap .conditions-table th{background:var(--deep);color:var(--white);font-size:15px !important;font-weight:600;letter-spacing:.06em;text-transform:uppercase;padding:10px 12px;text-align:left;}\n .ro-wrap .conditions-table th:first-child{border-radius:var(--radius) 0 0 0;}\n .ro-wrap .conditions-table th:last-child{border-radius:0 var(--radius) 0 0;}\n .ro-wrap .conditions-table td{padding:10px 12px;border-bottom:1px solid var(--slate);color:var(--text);}\n .ro-wrap .conditions-table tr:nth-child(even) td{background:var(--offwhite);}\n .ro-wrap .ro-feature-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(min(220px,100%),1fr));gap:16px;margin-top:4px;}\n .ro-wrap .ro-feature-card{background:var(--offwhite);border:1px solid var(--slate);border-radius:var(--radius);padding:20px 18px;}\n .ro-wrap .ro-feat-icon{width:40px;height:40px;background:linear-gradient(135deg,var(--ocean),var(--sky));border-radius:10px;display:flex;align-items:center;justify-content:center;margin-bottom:12px;}\n .ro-wrap .ro-feature-card h3{font-size:20px !important;font-weight:600;color:var(--deep);margin-bottom:6px;}\n .ro-wrap .ro-feature-card p{font-size:18px !important;color:var(--muted);line-height:1.55;margin:0;}\n .ro-wrap .pro-tip{display:block;background:#fffbeb;border:1px solid #f5d87a;border-radius:var(--radius);padding:18px 20px;margin-top:20px;box-sizing:border-box;width:100% !important;}\n .ro-wrap .pro-tip-icon{font-size:22px !important;display:inline;margin-right:8px;line-height:1.6 !important;}\n .ro-wrap .pro-tip p{font-size:18px !important;color:#5a4500;line-height:1.6 !important;margin:0;display:block;width:100%;}\n .ro-wrap .pro-tip strong{color:#3d2e00;}\n .ro-wrap .install-steps{counter-reset:step;list-style:none;padding:0;margin:4px 0 0;display:flex;flex-direction:column;gap:14px;}\n .ro-wrap .install-steps li{counter-increment:step;display:flex;align-items:flex-start;gap:14px;font-size:18px !important;color:var(--text);}\n .ro-wrap .install-steps li::before{content:counter(step);display:flex;align-items:center;justify-content:center;width:28px;height:28px;border-radius:50%;background:var(--ocean);color:white;font-size:15px !important;font-weight:700;flex-shrink:0;margin-top:1px;}\n .ro-wrap .filter-schedule{display:grid;grid-template-columns:repeat(auto-fill,minmax(min(180px,100%),1fr));gap:12px;margin-top:4px;}\n .ro-wrap .schedule-card{background:var(--offwhite);border:1px solid var(--slate);border-radius:var(--radius);padding:16px;}\n .ro-wrap .schedule-card .interval{font-size:22px !important;font-family:'DM Serif Display',serif;color:var(--sky);font-weight:400;margin-bottom:4px;}\n .ro-wrap .schedule-card h4{font-size:18px !important;font-weight:600;color:var(--deep);margin-bottom:4px;}\n .ro-wrap .schedule-card p{font-size:15px !important;color:var(--muted);margin:0;line-height:1.45;}\n .ro-wrap .benefits-strip{display:flex;flex-wrap:wrap;background:var(--deep);color:var(--white);border-radius:0 0 var(--radius) var(--radius);overflow:hidden;}\n .ro-wrap .benefit-item{flex:1 1 200px;padding:24px 22px;border-right:1px solid rgba(255,255,255,.1);}\n .ro-wrap .benefit-item:last-child{border-right:none;}\n .ro-wrap .bi-icon{font-size:22px !important;margin-bottom:10px;}\n .ro-wrap .benefit-item h4{font-size:15px !important;font-weight:600;color:var(--aqua);margin-bottom:5px;text-transform:uppercase;letter-spacing:.05em;}\n .ro-wrap .benefit-item p{font-size:15px !important;color:rgba(255,255,255,.65);line-height:1.55;margin:0;}\n .ro-wrap .faucet-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(min(200px,100%),1fr));gap:16px;margin-top:4px;}\n .ro-wrap .faucet-card{border:2px solid var(--slate);border-radius:var(--radius);padding:18px;text-align:center;}\n .ro-wrap .faucet-icon{font-size:28px !important;margin-bottom:10px;}\n .ro-wrap .faucet-card h4{font-size:18px !important;font-weight:600;color:var(--deep);margin-bottom:6px;}\n .ro-wrap .faucet-card p{font-size:15px !important;color:var(--muted);line-height:1.5;margin:0;}\n .ro-wrap .spec-cards{display:grid;grid-template-columns:repeat(auto-fill,minmax(min(180px,100%),1fr));gap:12px;margin-top:4px;}\n .ro-wrap .spec-card{background:var(--offwhite);border:1px solid var(--slate);border-radius:var(--radius);padding:16px;}\n .ro-wrap .spec-card .sc-label{font-size:13px !important;font-weight:700;letter-spacing:.08em;color:var(--sky);text-transform:uppercase;margin-bottom:4px;}\n .ro-wrap .spec-card .sc-value{font-size:20px !important;font-weight:600;color:var(--deep);margin-bottom:4px;}\n .ro-wrap .spec-card .sc-note{font-size:15px !important;color:var(--muted);}\n @media(max-width:640px){\n .ro-wrap .ro-hero{padding:36px 24px 32px;}\n .ro-wrap .ro-section{padding:28px 20px;}\n .ro-wrap .ro-feature-grid,.ro-wrap .faucet-grid,.ro-wrap .filter-schedule,.ro-wrap .spec-cards{grid-template-columns:1fr;}\n .ro-wrap .benefits-strip{flex-direction:column;}\n .ro-wrap .benefit-item{border-right:none;border-bottom:1px solid rgba(255,255,255,.1);}\n }\n \/* ── Nuclear override — force all text inside ro-wrap to be readable ── *\/\n .ro-wrap p,\n .ro-wrap li,\n .ro-wrap td,\n .ro-wrap th,\n .ro-wrap .ro-section \u003e p {\n font-size: 18px !important;\n line-height: 1.6 !important;\n }\n .ro-wrap .ro-section \u003e p,\n .ro-wrap .ro-callout p,\n .ro-wrap .stage-body p,\n .ro-wrap .ro-feature-card p,\n .ro-wrap .schedule-card p,\n .ro-wrap .faucet-card p,\n .ro-wrap .spec-card .sc-note,\n .ro-wrap .pro-tip p {\n font-size: 18px !important;\n line-height: 1.6 !important;\n }\n .ro-wrap h2 { font-size: clamp(26px,4vw,40px) !important; line-height:1.15 !important; }\n .ro-wrap h3 { font-size: 20px !important; line-height:1.3 !important; }\n .ro-wrap h4 { font-size: 18px !important; line-height:1.3 !important; }\n .ro-wrap .ro-label,\n .ro-wrap .stage-tag,\n .ro-wrap .sc-label { font-size: 14px !important; }\n .ro-wrap .ro-title { font-size: 24px !important; }\n .ro-wrap .interval { font-size: 22px !important; }\n .ro-wrap .stage-num { font-size: 16px !important; }\n .ro-wrap .ro-eyebrow { font-size: 14px !important; }\n .ro-wrap .ro-badge { font-size: 15px !important; }\n\u003c\/style\u003e\n\u003cdiv class=\"ro-wrap\"\u003e\n\n\u003cdiv class=\"ro-hero\"\u003e\n\u003cdiv class=\"ro-eyebrow\"\u003eWatts Premier | Specialty Filtration\u003c\/div\u003e\n\u003ch2\u003e\n\u003cem\u003eWatts WQCHFC11\u003c\/em\u003e 11\" Kwik-Change Hollow Fiber Membrane\u003c\/h2\u003e\n\u003cdiv class=\"ro-tagline\"\u003eUltrafiltration membrane for high-volume bacteria and cyst reduction without generating wastewater\u003c\/div\u003e\n\u003cdiv class=\"ro-badges\"\u003e\n\u003cspan class=\"ro-badge\"\u003e✓ Kwik-Change cartridge design\u003c\/span\u003e\n\u003cspan class=\"ro-badge\"\u003e✓ 0.02 micron hollow fiber UF\u003c\/span\u003e\n\u003cspan class=\"ro-badge\"\u003e✓ No drain connection required\u003c\/span\u003e\n\u003cspan class=\"ro-badge\"\u003e✓ 11-inch standard housing\u003c\/span\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"ro-callout\"\u003e\n\u003cp\u003eThe Watts WQCHFC11 uses \u003cstrong\u003ehollow fiber ultrafiltration technology\u003c\/strong\u003e to remove bacteria, cysts, and fine sediment down to \u003cstrong\u003e0.02 microns\u003c\/strong\u003e without the wastewater typical of reverse osmosis membranes. Designed for the \u003cstrong\u003eKwik-Change housing system\u003c\/strong\u003e, it delivers high flow rates and mechanical pathogen removal in point-of-use and whole-house applications where chlorine-tolerant UF is preferred over traditional RO.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"ro-section\"\u003e\n\u003cdiv class=\"ro-label\"\u003eKEY FEATURES\u003c\/div\u003e\n\u003ch3 class=\"ro-title\"\u003eWhat Makes Hollow Fiber UF Different\u003c\/h3\u003e\n\u003cdiv class=\"ro-feature-grid\"\u003e\n\u003cdiv class=\"ro-feature-card\"\u003e\n\u003cdiv class=\"ro-feat-icon\"\u003e\u003cspan\u003e🧬\u003c\/span\u003e\u003c\/div\u003e\n\u003ch3\u003e0.02 Micron Filtration\u003c\/h3\u003e\n\u003cp\u003eHollow fiber membrane removes bacteria, cysts, algae, and turbidity through physical size exclusion, providing absolute filtration without chemicals\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"ro-feature-card\"\u003e\n\u003cdiv class=\"ro-feat-icon\"\u003e\u003cspan\u003e💧\u003c\/span\u003e\u003c\/div\u003e\n\u003ch3\u003eNo Wastewater\u003c\/h3\u003e\n\u003cp\u003eUnlike RO membranes, ultrafiltration operates without a drain line or reject water, making it ideal for applications where water waste is a concern\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"ro-feature-card\"\u003e\n\u003cdiv class=\"ro-feat-icon\"\u003e\u003cspan\u003e🔄\u003c\/span\u003e\u003c\/div\u003e\n\u003ch3\u003eKwik-Change Platform\u003c\/h3\u003e\n\u003cp\u003eProprietary cartridge design drops into compatible Watts housings with a quarter-turn lock, eliminating wrench tools and simplifying replacements\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"ro-feature-card\"\u003e\n\u003cdiv class=\"ro-feat-icon\"\u003e\u003cspan\u003e⚡\u003c\/span\u003e\u003c\/div\u003e\n\u003ch3\u003eHigh Flow Capacity\u003c\/h3\u003e\n\u003cp\u003eHollow fiber bundle configuration provides high surface area and flow rates suitable for demanding residential and light commercial use\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"ro-feature-card\"\u003e\n\u003cdiv class=\"ro-feat-icon\"\u003e\u003cspan\u003e🛡️\u003c\/span\u003e\u003c\/div\u003e\n\u003ch3\u003eChlorine Tolerant\u003c\/h3\u003e\n\u003cp\u003eCan operate on chlorinated municipal water without pre-filtration damage, unlike thin-film composite RO membranes that require dechlorination\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"ro-feature-card\"\u003e\n\u003cdiv class=\"ro-feat-icon\"\u003e\u003cspan\u003e🔬\u003c\/span\u003e\u003c\/div\u003e\n\u003ch3\u003ePathogen Barrier\u003c\/h3\u003e\n\u003cp\u003eProvides a physical barrier against Cryptosporidium, Giardia, and bacteria without relying on chemical disinfection or UV exposure\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"ro-section\"\u003e\n\u003cdiv class=\"ro-label\"\u003eCOMPATIBILITY \u0026amp; APPLICATIONS\u003c\/div\u003e\n\u003ch3 class=\"ro-title\"\u003eSystem Integration\u003c\/h3\u003e\n\u003cp\u003eThe WQCHFC11 membrane is designed for Watts Kwik-Change filter housings that accept 11-inch cartridges. Common in point-of-use systems where ultrafiltration is specified for microbiological safety, emergency preparedness systems, and whole-house applications where high sediment loads or pathogen concerns exist. Not a direct substitute for standard RO membranes in systems designed for dissolved solids reduction—UF does not remove salts, hardness, or TDS. Verify housing compatibility and system design requirements before ordering.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"ro-callout\"\u003e\n\u003cp\u003eWatts has been engineering residential and commercial water treatment components for decades, and the WQCHFC11 reflects that experience in ultrafiltration design and cartridge serviceability.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003c\/div\u003e","brand":"Watts","offers":[{"title":"Default Title","offer_id":35472278847650,"sku":"WQCHFC11","price":88.72,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0446\/7677\/6098\/files\/product-5537090044066-padded.jpg?v=1777271049"},{"product_id":"watts-wqchfc13-13-kwik-change-ro-hollow-fiber-membrane-uf","title":"Watts (WQCHFC13) 13\" Kwik-Change RO Hollow Fiber Membrane (UF)","description":"\n\u003clink 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var(--radius);overflow:hidden;}\n .ro-wrap .benefit-item{flex:1 1 200px;padding:24px 22px;border-right:1px solid rgba(255,255,255,.1);}\n .ro-wrap .benefit-item:last-child{border-right:none;}\n .ro-wrap .bi-icon{font-size:22px !important;margin-bottom:10px;}\n .ro-wrap .benefit-item h4{font-size:15px !important;font-weight:600;color:var(--aqua);margin-bottom:5px;text-transform:uppercase;letter-spacing:.05em;}\n .ro-wrap .benefit-item p{font-size:15px !important;color:rgba(255,255,255,.65);line-height:1.55;margin:0;}\n .ro-wrap .faucet-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(min(200px,100%),1fr));gap:16px;margin-top:4px;}\n .ro-wrap .faucet-card{border:2px solid var(--slate);border-radius:var(--radius);padding:18px;text-align:center;}\n .ro-wrap .faucet-icon{font-size:28px !important;margin-bottom:10px;}\n .ro-wrap .faucet-card h4{font-size:18px !important;font-weight:600;color:var(--deep);margin-bottom:6px;}\n .ro-wrap .faucet-card p{font-size:15px !important;color:var(--muted);line-height:1.5;margin:0;}\n .ro-wrap .spec-cards{display:grid;grid-template-columns:repeat(auto-fill,minmax(min(180px,100%),1fr));gap:12px;margin-top:4px;}\n .ro-wrap .spec-card{background:var(--offwhite);border:1px solid var(--slate);border-radius:var(--radius);padding:16px;}\n .ro-wrap .spec-card .sc-label{font-size:13px !important;font-weight:700;letter-spacing:.08em;color:var(--sky);text-transform:uppercase;margin-bottom:4px;}\n .ro-wrap .spec-card .sc-value{font-size:20px !important;font-weight:600;color:var(--deep);margin-bottom:4px;}\n .ro-wrap .spec-card .sc-note{font-size:15px !important;color:var(--muted);}\n @media(max-width:640px){\n .ro-wrap .ro-hero{padding:36px 24px 32px;}\n .ro-wrap .ro-section{padding:28px 20px;}\n .ro-wrap .ro-feature-grid,.ro-wrap .faucet-grid,.ro-wrap .filter-schedule,.ro-wrap .spec-cards{grid-template-columns:1fr;}\n .ro-wrap .benefits-strip{flex-direction:column;}\n .ro-wrap .benefit-item{border-right:none;border-bottom:1px solid rgba(255,255,255,.1);}\n }\n \/* ── Nuclear override — force all text inside ro-wrap to be readable ── *\/\n .ro-wrap p,\n .ro-wrap li,\n .ro-wrap td,\n .ro-wrap th,\n .ro-wrap .ro-section \u003e p {\n font-size: 18px !important;\n line-height: 1.6 !important;\n }\n .ro-wrap .ro-section \u003e p,\n .ro-wrap .ro-callout p,\n .ro-wrap .stage-body p,\n .ro-wrap .ro-feature-card p,\n .ro-wrap .schedule-card p,\n .ro-wrap .faucet-card p,\n .ro-wrap .spec-card .sc-note,\n .ro-wrap .pro-tip p {\n font-size: 18px !important;\n line-height: 1.6 !important;\n }\n .ro-wrap h2 { font-size: clamp(26px,4vw,40px) !important; line-height:1.15 !important; }\n .ro-wrap h3 { font-size: 20px !important; line-height:1.3 !important; }\n .ro-wrap h4 { font-size: 18px !important; line-height:1.3 !important; }\n .ro-wrap .ro-label,\n .ro-wrap .stage-tag,\n .ro-wrap .sc-label { font-size: 14px !important; }\n .ro-wrap .ro-title { font-size: 24px !important; }\n .ro-wrap .interval { font-size: 22px !important; }\n .ro-wrap .stage-num { font-size: 16px !important; }\n .ro-wrap .ro-eyebrow { font-size: 14px !important; }\n .ro-wrap .ro-badge { font-size: 15px !important; }\n\u003c\/style\u003e\n\u003cdiv class=\"ro-wrap\"\u003e\n\n\u003cdiv class=\"ro-hero\"\u003e\n\u003cdiv class=\"ro-eyebrow\"\u003eWatts Water — Specialty Membrane Filtration\u003c\/div\u003e\n\u003ch2\u003eWatts WQCHFC13 13\" Kwik-Change Hollow Fiber UF Membrane\u003c\/h2\u003e\n\u003cdiv class=\"ro-tagline\"\u003eUltrafiltration membrane designed for quick cartridge changes in residential and light commercial reverse osmosis systems\u003c\/div\u003e\n\u003cdiv class=\"ro-badges\"\u003e\n\u003cspan class=\"ro-badge\"\u003eKwik-Change Design\u003c\/span\u003e\n\u003cspan class=\"ro-badge\"\u003eHollow Fiber UF\u003c\/span\u003e\n\u003cspan class=\"ro-badge\"\u003e13\" Cartridge\u003c\/span\u003e\n\u003cspan class=\"ro-badge\"\u003eWatts OEM\u003c\/span\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"ro-callout\"\u003e\nThe Watts WQCHFC13 is a 13-inch hollow fiber ultrafiltration membrane engineered for Kwik-Change RO systems that require tool-free cartridge replacement. This specialty UF membrane delivers fine filtration without the waste stream of a traditional RO membrane, making it suitable for specific water treatment applications where ultrafiltration meets your water quality goals.\n\u003c\/div\u003e\n\n\u003cdiv class=\"ro-section\"\u003e\n\u003cdiv class=\"ro-label\"\u003eHOW IT WORKS\u003c\/div\u003e\n\u003ch2 class=\"ro-title\"\u003eHollow Fiber Ultrafiltration Technology\u003c\/h2\u003e\n\u003cdiv class=\"stage-pipeline\"\u003e\n\n\u003cdiv class=\"stage-row\"\u003e\n\u003cdiv class=\"stage-line\"\u003e\u003c\/div\u003e\n\u003cdiv class=\"stage-num\"\u003e1\u003c\/div\u003e\n\u003cdiv class=\"stage-body\"\u003e\n\u003cspan class=\"stage-tag\"\u003ePREFILTRATION\u003c\/span\u003e\n\u003ch3\u003eWater Enters Membrane Housing\u003c\/h3\u003e\n\u003cp\u003eIncoming water flows through the Kwik-Change cartridge interface into the hollow fiber bundle after sediment and carbon prefiltration stages.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"stage-row\"\u003e\n\u003cdiv class=\"stage-line\"\u003e\u003c\/div\u003e\n\u003cdiv class=\"stage-num\"\u003e2\u003c\/div\u003e\n\u003cdiv class=\"stage-body\"\u003e\n\u003cspan class=\"stage-tag\"\u003eULTRAFILTRATION\u003c\/span\u003e\n\u003ch3\u003eHollow Fiber Separation\u003c\/h3\u003e\n\u003cp\u003eWater passes through thousands of microscopic hollow fiber membranes that remove bacteria, cysts, turbidity, and suspended particles while allowing dissolved minerals to pass through.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"stage-row\"\u003e\n\u003cdiv class=\"stage-line\"\u003e\u003c\/div\u003e\n\u003cdiv class=\"stage-num\"\u003e3\u003c\/div\u003e\n\u003cdiv class=\"stage-body\"\u003e\n\u003cspan class=\"stage-tag\"\u003eDELIVERY\u003c\/span\u003e\n\u003ch3\u003eFiltered Water Output\u003c\/h3\u003e\n\u003cp\u003eUltrafiltered water exits the cartridge for use or additional polishing stages, with no drain line required due to UF's non-reject filtration method.\u003c\/p\u003e\n\u003cspan class=\"stage-part\"\u003eService life varies by water quality\u003c\/span\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"ro-section\"\u003e\n\u003cdiv class=\"ro-label\"\u003eCOMPATIBILITY\u003c\/div\u003e\n\u003ch2 class=\"ro-title\"\u003eDesigned for Watts Kwik-Change Systems\u003c\/h2\u003e\n\u003cp\u003eThe WQCHFC13 hollow fiber membrane is built specifically for Watts Kwik-Change reverse osmosis and ultrafiltration housings that accept 13-inch cartridges. This specialty membrane is designed for applications where ultrafiltration meets treatment goals without the water waste of traditional RO membranes. Confirm your system model accepts Kwik-Change style cartridges and that a UF membrane is appropriate for your water quality before ordering. Not interchangeable with standard thin-film composite RO membranes.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003c\/div\u003e","brand":"Watts","offers":[{"title":"Default Title","offer_id":35472435576994,"sku":"WQCHFC13","price":87.9,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0446\/7677\/6098\/files\/product-5537110196386-padded.jpg?v=1777271054"},{"product_id":"watts-wqc4ro-filterkit-kwik-change-11-pre-and-post-filter-and-membrane-replacement-6-pack","title":"Watts (WQC4RO-FILTERKIT) Kwik Change 11\" Pre- and Post- Filter and Membrane Replacement 6 Pack","description":"\n\u003clink href=\"https:\/\/fonts.googleapis.com\/css2?family=DM+Serif+Display:ital@0;1\u0026amp;family=DM+Sans:wght@300;400;500;600\u0026amp;display=swap\" rel=\"stylesheet\"\u003e\n\u003cstyle\u003e\n .ro-wrap {\n --deep:#0a1628;--ocean:#0f3460;--blue:#1565c0;--sky:#2196f3;--aqua:#4dd0e1;\n 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Display',serif;font-size:clamp(26px,4vw,40px) !important;line-height:1.15;font-weight:400;margin-bottom:16px;color:var(--white);}\n .ro-wrap .ro-hero h2 em{font-style:italic;color:var(--aqua);}\n .ro-wrap .ro-tagline{font-size:18px !important;color:rgba(255,255,255,.75);font-weight:300;margin-bottom:28px;}\n .ro-wrap .ro-badges{display:flex;flex-wrap:wrap;gap:10px;}\n .ro-wrap .ro-badge{display:inline-flex;align-items:center;gap:6px;background:rgba(255,255,255,.12);border:1px solid rgba(255,255,255,.2);color:var(--white);font-size:15px !important;font-weight:500;padding:6px 14px;border-radius:40px;backdrop-filter:blur(6px);}\n .ro-wrap .ro-callout{background:var(--offwhite);border-left:4px solid var(--sky);padding:20px 24px;}\n .ro-wrap .ro-callout p{font-size:18px !important;color:var(--text);line-height:1.7;margin:0;}\n .ro-wrap .ro-callout strong{color:var(--ocean);}\n .ro-wrap .ro-section{padding:36px 40px;border-bottom:1px solid var(--slate);}\n .ro-wrap .ro-label{font-size:13px 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tr{border-bottom:1px solid var(--slate);}\n .ro-wrap .specs-table tr:last-child{border-bottom:none;}\n .ro-wrap .specs-table td{padding:11px 6px;vertical-align:top;}\n .ro-wrap .specs-table td:first-child{font-weight:500;color:var(--deep);width:44%;padding-right:16px;}\n .ro-wrap .specs-table td:last-child{color:var(--muted);}\n .ro-wrap .specs-table tr:hover td{background:var(--offwhite);}\n .ro-wrap .conditions-table{width:100%;border-collapse:collapse;font-size:18px !important;margin-top:4px;}\n .ro-wrap .conditions-table th{background:var(--deep);color:var(--white);font-size:15px !important;font-weight:600;letter-spacing:.06em;text-transform:uppercase;padding:10px 12px;text-align:left;}\n .ro-wrap .conditions-table th:first-child{border-radius:var(--radius) 0 0 0;}\n .ro-wrap .conditions-table th:last-child{border-radius:0 var(--radius) 0 0;}\n .ro-wrap .conditions-table td{padding:10px 12px;border-bottom:1px solid var(--slate);color:var(--text);}\n .ro-wrap .conditions-table tr:nth-child(even) td{background:var(--offwhite);}\n .ro-wrap .ro-feature-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(min(220px,100%),1fr));gap:16px;margin-top:4px;}\n .ro-wrap .ro-feature-card{background:var(--offwhite);border:1px solid var(--slate);border-radius:var(--radius);padding:20px 18px;}\n .ro-wrap .ro-feat-icon{width:40px;height:40px;background:linear-gradient(135deg,var(--ocean),var(--sky));border-radius:10px;display:flex;align-items:center;justify-content:center;margin-bottom:12px;}\n .ro-wrap .ro-feature-card h3{font-size:20px !important;font-weight:600;color:var(--deep);margin-bottom:6px;}\n .ro-wrap .ro-feature-card p{font-size:18px !important;color:var(--muted);line-height:1.55;margin:0;}\n .ro-wrap .pro-tip{display:block;background:#fffbeb;border:1px solid #f5d87a;border-radius:var(--radius);padding:18px 20px;margin-top:20px;box-sizing:border-box;width:100% !important;}\n .ro-wrap .pro-tip-icon{font-size:22px 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var(--slate);border-radius:var(--radius);padding:16px;}\n .ro-wrap .schedule-card .interval{font-size:22px !important;font-family:'DM Serif Display',serif;color:var(--sky);font-weight:400;margin-bottom:4px;}\n .ro-wrap .schedule-card h4{font-size:18px !important;font-weight:600;color:var(--deep);margin-bottom:4px;}\n .ro-wrap .schedule-card p{font-size:15px !important;color:var(--muted);margin:0;line-height:1.45;}\n .ro-wrap .benefits-strip{display:flex;flex-wrap:wrap;background:var(--deep);color:var(--white);border-radius:0 0 var(--radius) var(--radius);overflow:hidden;}\n .ro-wrap .benefit-item{flex:1 1 200px;padding:24px 22px;border-right:1px solid rgba(255,255,255,.1);}\n .ro-wrap .benefit-item:last-child{border-right:none;}\n .ro-wrap .bi-icon{font-size:22px !important;margin-bottom:10px;}\n .ro-wrap .benefit-item h4{font-size:15px !important;font-weight:600;color:var(--aqua);margin-bottom:5px;text-transform:uppercase;letter-spacing:.05em;}\n .ro-wrap .benefit-item p{font-size:15px !important;color:rgba(255,255,255,.65);line-height:1.55;margin:0;}\n .ro-wrap .faucet-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(min(200px,100%),1fr));gap:16px;margin-top:4px;}\n .ro-wrap .faucet-card{border:2px solid var(--slate);border-radius:var(--radius);padding:18px;text-align:center;}\n .ro-wrap .faucet-icon{font-size:28px !important;margin-bottom:10px;}\n .ro-wrap .faucet-card h4{font-size:18px !important;font-weight:600;color:var(--deep);margin-bottom:6px;}\n .ro-wrap .faucet-card p{font-size:15px !important;color:var(--muted);line-height:1.5;margin:0;}\n .ro-wrap .spec-cards{display:grid;grid-template-columns:repeat(auto-fill,minmax(min(180px,100%),1fr));gap:12px;margin-top:4px;}\n .ro-wrap .spec-card{background:var(--offwhite);border:1px solid var(--slate);border-radius:var(--radius);padding:16px;}\n .ro-wrap .spec-card .sc-label{font-size:13px !important;font-weight:700;letter-spacing:.08em;color:var(--sky);text-transform:uppercase;margin-bottom:4px;}\n .ro-wrap .spec-card .sc-value{font-size:20px !important;font-weight:600;color:var(--deep);margin-bottom:4px;}\n .ro-wrap .spec-card .sc-note{font-size:15px !important;color:var(--muted);}\n @media(max-width:640px){\n .ro-wrap .ro-hero{padding:36px 24px 32px;}\n .ro-wrap .ro-section{padding:28px 20px;}\n .ro-wrap .ro-feature-grid,.ro-wrap .faucet-grid,.ro-wrap .filter-schedule,.ro-wrap .spec-cards{grid-template-columns:1fr;}\n .ro-wrap .benefits-strip{flex-direction:column;}\n .ro-wrap .benefit-item{border-right:none;border-bottom:1px solid rgba(255,255,255,.1);}\n }\n \/* ── Nuclear override — force all text inside ro-wrap to be readable ── *\/\n .ro-wrap p,\n .ro-wrap li,\n .ro-wrap td,\n .ro-wrap th,\n .ro-wrap .ro-section \u003e p {\n font-size: 18px !important;\n line-height: 1.6 !important;\n }\n .ro-wrap .ro-section \u003e p,\n .ro-wrap .ro-callout p,\n .ro-wrap .stage-body p,\n .ro-wrap .ro-feature-card p,\n .ro-wrap .schedule-card p,\n .ro-wrap .faucet-card p,\n .ro-wrap .spec-card .sc-note,\n .ro-wrap .pro-tip p {\n font-size: 18px !important;\n line-height: 1.6 !important;\n }\n .ro-wrap h2 { font-size: clamp(26px,4vw,40px) !important; line-height:1.15 !important; }\n .ro-wrap h3 { font-size: 20px !important; line-height:1.3 !important; }\n .ro-wrap h4 { font-size: 18px !important; line-height:1.3 !important; }\n .ro-wrap .ro-label,\n .ro-wrap .stage-tag,\n .ro-wrap .sc-label { font-size: 14px !important; }\n .ro-wrap .ro-title { font-size: 24px !important; }\n .ro-wrap .interval { font-size: 22px !important; }\n .ro-wrap .stage-num { font-size: 16px !important; }\n .ro-wrap .ro-eyebrow { font-size: 14px !important; }\n .ro-wrap .ro-badge { font-size: 15px !important; }\n\u003c\/style\u003e\n\u003cdiv class=\"ro-wrap\"\u003e\n\n\u003cdiv class=\"ro-callout\"\u003e\nThe Watts WQC4RO-FILTERKIT delivers a complete six-pack replacement solution for Kwik-Change 11-inch reverse osmosis systems, including sediment pre-filters, carbon blocks, GAC post-filters, and a 50 GPD membrane. This bundled kit ensures you have a full year's supply of filtration components with Watts' tool-free quick-change design and leak-proof double O-ring seals.\n\u003c\/div\u003e\n\n\u003cdiv class=\"ro-section\"\u003e\n\u003cdiv class=\"ro-label\"\u003eSPECIFICATIONS\u003c\/div\u003e\n\u003ch2 class=\"ro-title\"\u003eWhat's Included in This Kit\u003c\/h2\u003e\n\u003ctable class=\"specs-table\"\u003e\n\u003ctr\u003e\n\u003ctd\u003eManufacturer\u003c\/td\u003e\n\u003ctd\u003eWatts\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eModel Number\u003c\/td\u003e\n\u003ctd\u003eWQC4RO-FILTERKIT\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCartridge Length\u003c\/td\u003e\n\u003ctd\u003e11 inches\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTotal Filters Included\u003c\/td\u003e\n\u003ctd\u003e6 cartridges (WQCSC11, WQCCC11, WQCM11-50, WQCGAC11)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRO Membrane\u003c\/td\u003e\n\u003ctd\u003eWQCM11-50, 50 gallons per day\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSediment Pre-Filter\u003c\/td\u003e\n\u003ctd\u003eWQCSC11, 5 micron nominal\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCarbon Block Filter\u003c\/td\u003e\n\u003ctd\u003eWQCCC11, 10 micron nominal, chlorine and taste reduction\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eGAC Post-Filter\u003c\/td\u003e\n\u003ctd\u003eWQCGAC11, 10 micron nominal, final polishing stage\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eReplacement Schedule\u003c\/td\u003e\n\u003ctd\u003eEvery 6 months (pre- and post-filters), 12-24 months (membrane)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"ro-section\"\u003e\n\u003cdiv class=\"ro-label\"\u003eINSTALLATION \u0026amp; USE\u003c\/div\u003e\n\u003ch2 class=\"ro-title\"\u003eReplacing Your Kwik-Change Filters\u003c\/h2\u003e\n\u003col class=\"install-steps\"\u003e\n\u003cli\u003eTurn off the water supply to your RO system and open the faucet to relieve pressure\u003c\/li\u003e\n\u003cli\u003eTwist each cartridge counterclockwise to remove — internal valves automatically shut off flow when the cartridge is pulled out\u003c\/li\u003e\n\u003cli\u003eRemove new cartridges from packaging and align the keyed cartridge body with the housing opening\u003c\/li\u003e\n\u003cli\u003ePush the cartridge up into the housing and turn clockwise until it locks into place with a firm stop\u003c\/li\u003e\n\u003cli\u003eRestore water supply and check for leaks, then flush the system for 10 minutes before use\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"ro-section\"\u003e\n\u003cdiv class=\"ro-label\"\u003eCOMPATIBILITY\u003c\/div\u003e\n\u003ch2 class=\"ro-title\"\u003eDesigned for Watts Kwik-Change Systems\u003c\/h2\u003e\n\u003cp\u003eThis filter kit is engineered specifically for Watts Kwik-Change 11-inch reverse osmosis systems. The WQCSC11 sediment filter protects downstream components from particulate damage, the WQCCC11 carbon block removes chlorine before the membrane, the WQCM11-50 membrane performs the primary filtration at 50 gallons per day, and the WQCGAC11 granular activated carbon post-filter polishes water for taste and odor. All cartridges feature double O-ring seals and integrated shutoff valves for leak-free, tool-free installation.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"pro-tip\"\u003e\n🔧 Replace sediment and carbon filters every six months, but monitor your membrane performance — if you notice a significant drop in flow rate or TDS creep, replace the WQCM11-50 membrane even if it hasn't reached the two-year mark. Buying this six-pack gives you a full year of pre- and post-filters with two membranes as backup.\n\u003c\/div\u003e\n\n\u003c\/div\u003e","brand":"Watts","offers":[{"title":"Default Title","offer_id":35473580458146,"sku":"Birds : 2R-2Y-1B-1G","price":293.35,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0446\/7677\/6098\/files\/watts-wqc4ro-filterkit-kwik-change-11-pre-and-post-filter-and-membrane-replacement-6-pack-123184.jpg?v=1791927283"},{"product_id":"watts-premier-105341-ro-pure-gac-carbon-filter","title":"Watts Premier (105341) RO PURE GAC Carbon Filter","description":"\u003c!-- ===== WATTS PREMIER 105341 RO-PURE GAC POST FILTER — .ro-wrap editorial (marine teal) ===== --\u003e\n\u003cstyle\u003e\n @import url('https:\/\/fonts.googleapis.com\/css2?family=DM+Serif+Display:ital@0;1\u0026family=DM+Sans:ital,opsz,wght@0,9..40,300;0,9..40,400;0,9..40,500;0,9..40,600;1,9..40,400\u0026display=swap');\n\n .ro-wrap *{box-sizing:border-box !important;margin:0 !important;padding:0 !important}\n .ro-wrap{\n font-family:'DM Sans',-apple-system,BlinkMacSystemFont,sans-serif !important;\n background:#163a42 !important;color:#e8efef !important;\n line-height:1.65 !important;letter-spacing:.01em !important;\n max-width:1100px !important;margin:0 auto !important;\n padding:0 !important;overflow:hidden !important;\n border-radius:14px !important;\n }\n .ro-wrap .ro-inner{padding:clamp(28px,5vw,68px) clamp(22px,5vw,72px) !important}\n\n \/* ---- hero ---- *\/\n .ro-wrap .ro-eyebrow{\n font-size:12px !important;font-weight:600 !important;letter-spacing:.32em !important;\n text-transform:uppercase !important;color:#e0b878 !important;margin-bottom:18px !important;\n }\n .ro-wrap .ro-h1{\n font-family:'DM Serif Display',Georgia,serif !important;font-weight:400 !important;\n font-size:clamp(30px,5vw,52px) !important;line-height:1.08 !important;\n color:#fff !important;margin-bottom:6px !important;\n }\n .ro-wrap .ro-h1 em{font-style:italic !important;color:#e0b878 !important}\n .ro-wrap .ro-sub{\n font-size:clamp(15px,2vw,18px) !important;color:#9fb6b6 !important;\n max-width:660px !important;margin-top:18px !important;font-weight:300 !important;\n }\n\n \/* ---- spec strip ---- *\/\n .ro-wrap .ro-specs{\n display:grid !important;grid-template-columns:repeat(4,1fr) !important;\n gap:1px !important;background:rgba(224,184,120,.20) !important;\n border:1px solid rgba(224,184,120,.20) !important;border-radius:10px !important;\n overflow:hidden !important;margin:8px 0 40px !important;\n }\n .ro-wrap .ro-spec{background:#1a444d !important;padding:22px 18px !important;text-align:center !important}\n .ro-wrap .ro-spec .n{\n font-family:'DM Serif Display',serif !important;font-size:clamp(22px,3vw,30px) !important;\n color:#e0b878 !important;line-height:1 !important;margin-bottom:8px !important;\n }\n .ro-wrap .ro-spec .l{\n font-size:11px !important;letter-spacing:.14em !important;text-transform:uppercase !important;\n color:#8fa9a9 !important;\n }\n\n \/* ---- section headings ---- *\/\n .ro-wrap .ro-sec-label{\n font-size:12px !important;font-weight:600 !important;letter-spacing:.26em !important;\n text-transform:uppercase !important;color:#e0b878 !important;margin-bottom:14px !important;\n }\n .ro-wrap .ro-h2{\n font-family:'DM Serif Display',serif !important;font-weight:400 !important;\n font-size:clamp(22px,3.4vw,34px) !important;color:#fff !important;\n line-height:1.15 !important;margin-bottom:16px !important;\n }\n .ro-wrap .ro-p{font-size:15.5px !important;color:#c6d4d4 !important;margin-bottom:14px !important;font-weight:300 !important}\n .ro-wrap .ro-p strong{color:#eef4f4 !important;font-weight:600 !important}\n\n .ro-wrap .ro-block{margin:46px 0 !important}\n\n \/* ---- feature list ---- *\/\n .ro-wrap .ro-feats{display:grid !important;grid-template-columns:1fr 1fr !important;gap:14px !important;margin-top:8px !important}\n .ro-wrap .ro-feat{\n display:flex !important;gap:14px !important;align-items:flex-start !important;\n background:#1a444d !important;border:1px solid rgba(255,255,255,.06) !important;\n border-radius:10px !important;padding:18px 20px !important;\n }\n .ro-wrap .ro-feat .ic{\n flex:0 0 30px !important;width:30px !important;height:30px !important;\n border:1px solid #e0b878 !important;border-radius:50% !important;\n display:flex !important;align-items:center !important;justify-content:center !important;\n color:#e0b878 !important;font-size:14px !important;font-weight:600 !important;\n }\n .ro-wrap .ro-feat .ft{font-size:14.5px !important;color:#d2dede !important;font-weight:400 !important;line-height:1.5 !important}\n .ro-wrap .ro-feat .ft b{color:#fff !important;font-weight:600 !important;display:block !important;margin-bottom:2px !important}\n\n \/* ---- compatibility callout ---- *\/\n .ro-wrap .ro-compat{\n background:linear-gradient(135deg,#1e3a30 0%,#1a444d 100%) !important;\n border:1px solid rgba(224,184,120,.34) !important;border-radius:12px !important;\n padding:clamp(22px,3vw,34px) !important;\n }\n .ro-wrap .ro-compat .ro-h2{margin-bottom:10px !important}\n .ro-wrap .ro-tags{display:flex !important;flex-wrap:wrap !important;gap:10px !important;margin-top:18px !important}\n .ro-wrap .ro-tag{\n font-size:13px !important;letter-spacing:.06em !important;font-weight:500 !important;\n color:#14322a !important;background:#e0b878 !important;\n padding:8px 16px !important;border-radius:40px !important;\n }\n .ro-wrap .ro-note{\n font-size:13px !important;color:#8fa9a9 !important;margin-top:18px !important;\n font-style:italic !important;font-weight:300 !important;\n }\n\n \/* ---- spec table ---- *\/\n .ro-wrap .ro-table{width:100% !important;border-collapse:collapse !important;margin-top:8px !important}\n .ro-wrap .ro-table tr{border-bottom:1px solid rgba(255,255,255,.08) !important}\n .ro-wrap .ro-table td{padding:15px 4px !important;font-size:14.5px !important;vertical-align:top !important}\n .ro-wrap .ro-table td:first-child{\n color:#8fa9a9 !important;letter-spacing:.08em !important;text-transform:uppercase !important;\n font-size:11.5px !important;font-weight:600 !important;width:42% !important;padding-top:18px !important;\n }\n .ro-wrap .ro-table td:last-child{color:#eef4f4 !important;font-weight:400 !important}\n\n @media(max-width:680px){\n .ro-wrap .ro-specs{grid-template-columns:1fr 1fr !important}\n .ro-wrap .ro-feats{grid-template-columns:1fr !important}\n }\n\u003c\/style\u003e\n\u003cdiv class=\"ro-wrap\"\u003e\n\u003cdiv class=\"ro-inner\"\u003e\n\u003cdiv class=\"ro-eyebrow\"\u003eWatts Premier · Part No. 105341 \/ F105341\u003c\/div\u003e\n\u003ch1 class=\"ro-h1\"\u003eRO-Pure \u003cem\u003eGAC\u003c\/em\u003e Post Carbon Filter\u003c\/h1\u003e\n\u003cp class=\"ro-sub\"\u003eThe final polish in the RO-Pure system — a granular activated carbon stage that strips residual chlorine taste and odor right before the water reaches your glass.\u003c\/p\u003e\n\u003cdiv class=\"ro-specs\"\u003e\n\u003cdiv class=\"ro-spec\"\u003e\n\u003cdiv class=\"n\"\u003e5µ\u003c\/div\u003e\n\u003cdiv class=\"l\"\u003eMicron Rating\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"ro-spec\"\u003e\n\u003cdiv class=\"n\"\u003e12 mo\u003c\/div\u003e\n\u003cdiv class=\"l\"\u003eFilter Life\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"ro-spec\"\u003e\n\u003cdiv class=\"n\"\u003eGAC\u003c\/div\u003e\n\u003cdiv class=\"l\"\u003eMedia Type\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"ro-spec\"\u003e\n\u003cdiv class=\"n\"\u003e12″\u003c\/div\u003e\n\u003cdiv class=\"l\"\u003eLength × 2.5″ OD\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"ro-block\"\u003e\n\u003cdiv class=\"ro-sec-label\"\u003eOverview\u003c\/div\u003e\n\u003ch2 class=\"ro-h2\"\u003eThe taste stage, done right\u003c\/h2\u003e\n\u003cp class=\"ro-p\"\u003eReverse osmosis removes the dissolved solids — but it's the \u003cstrong\u003epost carbon filter\u003c\/strong\u003e that determines how the water actually tastes coming out of the faucet. The Watts Premier 105341 packs high-grade granular activated carbon into the RO-Pure's final stage, where stored RO water passes through on its way to the dispenser.\u003c\/p\u003e\n\u003cp class=\"ro-p\"\u003eAs water moves across the carbon bed, \u003cstrong\u003eadsorption\u003c\/strong\u003e pulls residual chlorine, dissolved gases, and organic compounds onto the surface of the granules. The result is clean, crisp water free of the flat or chemical aftertaste that can develop in the storage tank between draws.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"ro-block\"\u003e\n\u003cdiv class=\"ro-sec-label\"\u003eWhy it matters\u003c\/div\u003e\n\u003cdiv class=\"ro-feats\"\u003e\n\u003cdiv class=\"ro-feat\"\u003e\n\u003cdiv class=\"ic\"\u003e✓\u003c\/div\u003e\n\u003cdiv class=\"ft\"\u003e\n\u003cb\u003eChlorine taste \u0026amp; odor\u003c\/b\u003eRemoves the residual chlorine flavor and smell that survive the RO membrane.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"ro-feat\"\u003e\n\u003cdiv class=\"ic\"\u003e✓\u003c\/div\u003e\n\u003cdiv class=\"ft\"\u003e\n\u003cb\u003e5-micron filtration\u003c\/b\u003eCaptures fine particulate while the GAC media handles dissolved organics.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"ro-feat\"\u003e\n\u003cdiv class=\"ic\"\u003e✓\u003c\/div\u003e\n\u003cdiv class=\"ft\"\u003e\n\u003cb\u003eDrop-in replacement\u003c\/b\u003eDirect OEM fit — no tools, no adapters, swaps in under a minute.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"ro-feat\"\u003e\n\u003cdiv class=\"ic\"\u003e✓\u003c\/div\u003e\n\u003cdiv class=\"ft\"\u003e\n\u003cb\u003eAnnual service interval\u003c\/b\u003eOne change per year keeps every glass tasting like the first.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"ro-block ro-compat\"\u003e\n\u003cdiv class=\"ro-sec-label\"\u003eCompatibility\u003c\/div\u003e\n\u003ch2 class=\"ro-h2\"\u003eBuilt for the RO-Pure platform\u003c\/h2\u003e\n\u003cp class=\"ro-p\"\u003eThis is a system-specific cartridge. The 105341 is engineered for the Watts Premier RO-Pure family and its matching housings — it will \u003cstrong\u003enot\u003c\/strong\u003e fit standard 10″ slim-line housings.\u003c\/p\u003e\n\u003cdiv class=\"ro-tags\"\u003e\n\u003cspan class=\"ro-tag\"\u003eRO-Pure\u003c\/span\u003e \u003cspan class=\"ro-tag\"\u003eRO-4\u003c\/span\u003e \u003cspan class=\"ro-tag\"\u003eFilter-Pure\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cp class=\"ro-note\"\u003eConfirm your system model before ordering. If you run a different RO unit, reach out and we'll cross-reference the correct post filter for you.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"ro-block\"\u003e\n\u003cdiv class=\"ro-sec-label\"\u003eSpecifications\u003c\/div\u003e\n\u003ctable class=\"ro-table\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eManufacturer\u003c\/td\u003e\n\u003ctd\u003eWatts Premier\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePart Number\u003c\/td\u003e\n\u003ctd\u003e105341 (SKU F105341)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFilter Type\u003c\/td\u003e\n\u003ctd\u003eGranular Activated Carbon (GAC) post filter\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMicron Rating\u003c\/td\u003e\n\u003ctd\u003e20 micron nominal\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eReduces\u003c\/td\u003e\n\u003ctd\u003eChlorine taste \u0026amp; odor, dissolved organics\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003e12″ length × 2.5″ outer diameter\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eReplacement Interval\u003c\/td\u003e\n\u003ctd\u003eEvery 12 months*\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCompatible Systems\u003c\/td\u003e\n\u003ctd\u003eWatts Premier RO-Pure \/ RO-4 \/ Filter-Pure\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp class=\"ro-note\"\u003e*Filter life varies with local water quality and household usage.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"Watts","offers":[{"title":"Default Title","offer_id":35473589272738,"sku":"F105341","price":43.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0446\/7677\/6098\/files\/watts-premier-105341-ro-pure-gac-carbon-filter-241298.jpg?v=1791927283"},{"product_id":"watts-premier-560060-11-1-2-ph-balance-ceramic-filter-1-4-qc","title":"Watts Premier (560060) 11-1\/2\" pH Balance Ceramic Filter 1\/4\" QC","description":"\n\u003clink href=\"https:\/\/fonts.googleapis.com\/css2?family=DM+Serif+Display:ital@0;1\u0026amp;family=DM+Sans:wght@300;400;500;600\u0026amp;display=swap\" rel=\"stylesheet\"\u003e\n\u003cstyle\u003e\n .ro-wrap {\n --deep:#0a1628;--ocean:#0f3460;--blue:#1565c0;--sky:#2196f3;--aqua:#4dd0e1;\n --white:#ffffff;--offwhite:#f2f7fc;--slate:#dce8f5;--text:#0d1f38;--muted:#4a6280;\n --gold:#f59e0b;--radius:12px;\n font-family:'DM Sans',sans-serif;color:var(--text);line-height:1.6;-webkit-font-smoothing:antialiased;overflow-wrap:break-word;word-break:break-word;min-width:0;\n }\n .ro-wrap .ro-hero{background:linear-gradient(135deg,var(--deep) 0%,var(--ocean) 50%,#1a5276 100%);color:var(--white);padding:52px 40px 44px;position:relative;overflow:hidden;border-radius:var(--radius) var(--radius) 0 0;}\n .ro-wrap .ro-hero::before{content:'';position:absolute;inset:0;background:radial-gradient(ellipse 70% 55% at 95% 45%,rgba(77,208,225,.15) 0%,transparent 65%),radial-gradient(ellipse 40% 40% at 5% 80%,rgba(255,255,255,.05) 0%,transparent 60%);pointer-events:none;}\n .ro-wrap .ro-eyebrow{font-size:13px !important;font-weight:600;letter-spacing:.18em;text-transform:uppercase;color:var(--aqua);margin-bottom:12px;}\n .ro-wrap .ro-hero h2{font-family:'DM Serif Display',serif;font-size:clamp(26px,4vw,40px) !important;line-height:1.15;font-weight:400;margin-bottom:16px;color:var(--white);}\n .ro-wrap .ro-hero h2 em{font-style:italic;color:var(--aqua);}\n .ro-wrap .ro-tagline{font-size:18px !important;color:rgba(255,255,255,.75);font-weight:300;margin-bottom:28px;}\n .ro-wrap .ro-badges{display:flex;flex-wrap:wrap;gap:10px;}\n .ro-wrap .ro-badge{display:inline-flex;align-items:center;gap:6px;background:rgba(255,255,255,.12);border:1px solid rgba(255,255,255,.2);color:var(--white);font-size:15px !important;font-weight:500;padding:6px 14px;border-radius:40px;backdrop-filter:blur(6px);}\n .ro-wrap .ro-callout{background:var(--offwhite);border-left:4px solid var(--sky);padding:20px 24px;}\n .ro-wrap .ro-callout p{font-size:18px !important;color:var(--text);line-height:1.7;margin:0;}\n .ro-wrap .ro-callout strong{color:var(--ocean);}\n .ro-wrap .ro-section{padding:36px 40px;border-bottom:1px solid var(--slate);}\n .ro-wrap .ro-label{font-size:13px !important;font-weight:700;letter-spacing:.2em;text-transform:uppercase;color:var(--sky);margin-bottom:8px;}\n .ro-wrap .ro-title{font-family:'DM Serif Display',serif;font-size:24px !important;color:var(--deep);margin-bottom:20px;font-weight:400;}\n .ro-wrap .stage-pipeline{display:flex;flex-direction:column;gap:0;margin-top:4px;}\n .ro-wrap .stage-row{display:flex;flex-direction:row;gap:12px;position:relative;min-width:0;align-items:flex-start;width:100%;box-sizing:border-box;}\n .ro-wrap .stage-row:not(:last-child) .stage-line{position:absolute;left:17px;top:40px;bottom:0;width:2px;background:var(--slate);}\n .ro-wrap .stage-num{width:36px;height:36px;min-width:36px;max-width:36px;border-radius:50%;background:linear-gradient(135deg,var(--ocean),var(--sky));color:white;display:flex;align-items:center;justify-content:center;font-size:16px !important;font-weight:700;flex:0 0 36px;position:relative;z-index:1;margin-top:16px;}\n .ro-wrap .stage-body{background:var(--offwhite);border:1px solid var(--slate);border-radius:var(--radius);padding:16px 18px;margin-bottom:12px;flex:1 1 0;min-width:0;overflow:hidden;overflow-wrap:break-word;word-break:break-word;box-sizing:border-box;}\n .ro-wrap .stage-body h3{font-size:20px !important;font-weight:600;color:var(--deep);margin-bottom:8px;margin-top:6px;}\n .ro-wrap .stage-tag{display:block;font-size:12px !important;font-weight:700;letter-spacing:.04em;text-transform:uppercase;background:var(--slate);color:var(--ocean);padding:3px 8px;border-radius:4px;margin-bottom:8px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;max-width:100%;line-height:1.5 !important;box-sizing:border-box;}\n .ro-wrap .stage-body p{font-size:18px !important;color:var(--muted);line-height:1.6;margin:0;display:block;}\n .ro-wrap .stage-body .stage-part{font-size:15px !important;color:var(--sky);margin-top:6px;font-weight:500;}\n .ro-wrap .specs-table{width:100%;border-collapse:collapse;font-size:18px !important;}\n .ro-wrap .specs-table tr{border-bottom:1px solid var(--slate);}\n .ro-wrap .specs-table tr:last-child{border-bottom:none;}\n .ro-wrap .specs-table td{padding:11px 6px;vertical-align:top;}\n .ro-wrap .specs-table td:first-child{font-weight:500;color:var(--deep);width:44%;padding-right:16px;}\n .ro-wrap .specs-table td:last-child{color:var(--muted);}\n .ro-wrap .specs-table tr:hover td{background:var(--offwhite);}\n .ro-wrap .conditions-table{width:100%;border-collapse:collapse;font-size:18px !important;margin-top:4px;}\n .ro-wrap .conditions-table th{background:var(--deep);color:var(--white);font-size:15px !important;font-weight:600;letter-spacing:.06em;text-transform:uppercase;padding:10px 12px;text-align:left;}\n .ro-wrap .conditions-table th:first-child{border-radius:var(--radius) 0 0 0;}\n .ro-wrap .conditions-table th:last-child{border-radius:0 var(--radius) 0 0;}\n .ro-wrap .conditions-table td{padding:10px 12px;border-bottom:1px solid var(--slate);color:var(--text);}\n .ro-wrap .conditions-table tr:nth-child(even) td{background:var(--offwhite);}\n .ro-wrap .ro-feature-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(min(220px,100%),1fr));gap:16px;margin-top:4px;}\n .ro-wrap .ro-feature-card{background:var(--offwhite);border:1px solid var(--slate);border-radius:var(--radius);padding:20px 18px;}\n .ro-wrap .ro-feat-icon{width:40px;height:40px;background:linear-gradient(135deg,var(--ocean),var(--sky));border-radius:10px;display:flex;align-items:center;justify-content:center;margin-bottom:12px;}\n .ro-wrap .ro-feature-card h3{font-size:20px !important;font-weight:600;color:var(--deep);margin-bottom:6px;}\n .ro-wrap .ro-feature-card p{font-size:18px !important;color:var(--muted);line-height:1.55;margin:0;}\n .ro-wrap .pro-tip{display:block;background:#fffbeb;border:1px solid #f5d87a;border-radius:var(--radius);padding:18px 20px;margin-top:20px;box-sizing:border-box;width:100% !important;}\n .ro-wrap .pro-tip-icon{font-size:22px !important;display:inline;margin-right:8px;line-height:1.6 !important;}\n .ro-wrap .pro-tip p{font-size:18px !important;color:#5a4500;line-height:1.6 !important;margin:0;display:block;width:100%;}\n .ro-wrap .pro-tip strong{color:#3d2e00;}\n .ro-wrap .install-steps{counter-reset:step;list-style:none;padding:0;margin:4px 0 0;display:flex;flex-direction:column;gap:14px;}\n .ro-wrap .install-steps li{counter-increment:step;display:flex;align-items:flex-start;gap:14px;font-size:18px !important;color:var(--text);}\n .ro-wrap .install-steps li::before{content:counter(step);display:flex;align-items:center;justify-content:center;width:28px;height:28px;border-radius:50%;background:var(--ocean);color:white;font-size:15px !important;font-weight:700;flex-shrink:0;margin-top:1px;}\n .ro-wrap .filter-schedule{display:grid;grid-template-columns:repeat(auto-fill,minmax(min(180px,100%),1fr));gap:12px;margin-top:4px;}\n .ro-wrap .schedule-card{background:var(--offwhite);border:1px solid var(--slate);border-radius:var(--radius);padding:16px;}\n .ro-wrap .schedule-card .interval{font-size:22px !important;font-family:'DM Serif Display',serif;color:var(--sky);font-weight:400;margin-bottom:4px;}\n .ro-wrap .schedule-card h4{font-size:18px !important;font-weight:600;color:var(--deep);margin-bottom:4px;}\n .ro-wrap .schedule-card p{font-size:15px !important;color:var(--muted);margin:0;line-height:1.45;}\n .ro-wrap .benefits-strip{display:flex;flex-wrap:wrap;background:var(--deep);color:var(--white);border-radius:0 0 var(--radius) var(--radius);overflow:hidden;}\n .ro-wrap .benefit-item{flex:1 1 200px;padding:24px 22px;border-right:1px solid rgba(255,255,255,.1);}\n .ro-wrap .benefit-item:last-child{border-right:none;}\n .ro-wrap .bi-icon{font-size:22px !important;margin-bottom:10px;}\n .ro-wrap .benefit-item h4{font-size:15px !important;font-weight:600;color:var(--aqua);margin-bottom:5px;text-transform:uppercase;letter-spacing:.05em;}\n .ro-wrap .benefit-item p{font-size:15px !important;color:rgba(255,255,255,.65);line-height:1.55;margin:0;}\n .ro-wrap .faucet-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(min(200px,100%),1fr));gap:16px;margin-top:4px;}\n .ro-wrap .faucet-card{border:2px solid var(--slate);border-radius:var(--radius);padding:18px;text-align:center;}\n .ro-wrap .faucet-icon{font-size:28px !important;margin-bottom:10px;}\n .ro-wrap .faucet-card h4{font-size:18px !important;font-weight:600;color:var(--deep);margin-bottom:6px;}\n .ro-wrap .faucet-card p{font-size:15px !important;color:var(--muted);line-height:1.5;margin:0;}\n .ro-wrap .spec-cards{display:grid;grid-template-columns:repeat(auto-fill,minmax(min(180px,100%),1fr));gap:12px;margin-top:4px;}\n .ro-wrap .spec-card{background:var(--offwhite);border:1px solid var(--slate);border-radius:var(--radius);padding:16px;}\n .ro-wrap .spec-card .sc-label{font-size:13px !important;font-weight:700;letter-spacing:.08em;color:var(--sky);text-transform:uppercase;margin-bottom:4px;}\n .ro-wrap .spec-card .sc-value{font-size:20px !important;font-weight:600;color:var(--deep);margin-bottom:4px;}\n .ro-wrap .spec-card .sc-note{font-size:15px !important;color:var(--muted);}\n @media(max-width:640px){\n .ro-wrap .ro-hero{padding:36px 24px 32px;}\n .ro-wrap .ro-section{padding:28px 20px;}\n .ro-wrap .ro-feature-grid,.ro-wrap .faucet-grid,.ro-wrap .filter-schedule,.ro-wrap .spec-cards{grid-template-columns:1fr;}\n .ro-wrap .benefits-strip{flex-direction:column;}\n .ro-wrap .benefit-item{border-right:none;border-bottom:1px solid rgba(255,255,255,.1);}\n }\n \/* ── Nuclear override — force all text inside ro-wrap to be readable ── *\/\n .ro-wrap p,\n .ro-wrap li,\n .ro-wrap td,\n .ro-wrap th,\n .ro-wrap .ro-section \u003e p {\n font-size: 18px !important;\n line-height: 1.6 !important;\n }\n .ro-wrap .ro-section \u003e p,\n .ro-wrap .ro-callout p,\n .ro-wrap .stage-body p,\n .ro-wrap .ro-feature-card p,\n .ro-wrap .schedule-card p,\n .ro-wrap .faucet-card p,\n .ro-wrap .spec-card .sc-note,\n .ro-wrap .pro-tip p {\n font-size: 18px !important;\n line-height: 1.6 !important;\n }\n .ro-wrap h2 { font-size: clamp(26px,4vw,40px) !important; line-height:1.15 !important; }\n .ro-wrap h3 { font-size: 20px !important; line-height:1.3 !important; }\n .ro-wrap h4 { font-size: 18px !important; line-height:1.3 !important; }\n .ro-wrap .ro-label,\n .ro-wrap .stage-tag,\n .ro-wrap .sc-label { font-size: 14px !important; }\n .ro-wrap .ro-title { font-size: 24px !important; }\n .ro-wrap .interval { font-size: 22px !important; }\n .ro-wrap .stage-num { font-size: 16px !important; }\n .ro-wrap .ro-eyebrow { font-size: 14px !important; }\n .ro-wrap .ro-badge { font-size: 15px !important; }\n\u003c\/style\u003e\n\u003cdiv class=\"ro-wrap\"\u003e\n\n\u003cdiv class=\"ro-hero\"\u003e\n\u003cdiv class=\"ro-eyebrow\"\u003eWatts Premier Post-Filtration\u003c\/div\u003e\n\u003ch2\u003e\n\u003cem\u003eWatts Premier 560060\u003c\/em\u003e 11-1\/2\" pH Balance Ceramic Filter with 1\/4\" QC\u003c\/h2\u003e\n\u003cdiv class=\"ro-tagline\"\u003eSix-layer remineralization and pH balancing post-filter engineered for reverse osmosis systems\u003c\/div\u003e\n\u003cdiv class=\"ro-badges\"\u003e\n\u003cspan class=\"ro-badge\"\u003e✓ Multi-layer ceramic filtration\u003c\/span\u003e\n\u003cspan class=\"ro-badge\"\u003e✓ Adds calcium \u0026amp; magnesium back\u003c\/span\u003e\n\u003cspan class=\"ro-badge\"\u003e✓ Far-infrared activation\u003c\/span\u003e\n\u003cspan class=\"ro-badge\"\u003e✓ 1\/4\" quick connect fittings\u003c\/span\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"ro-callout\"\u003e\n\u003cp\u003eThe Watts Premier 560060 is a comprehensive post-filter solution for homeowners who want the purity of reverse osmosis water with the health benefits of balanced minerals and pH. This \u003cstrong\u003e11-1\/2 inch inline filter\u003c\/strong\u003e integrates six distinct filtration layers—from sediment filtration to coral media—designed to remineralize, alkalize, and improve the taste of RO-treated water. Equipped with \u003cstrong\u003e1\/4 inch quick connect fittings\u003c\/strong\u003e for straightforward installation on most standard RO faucet lines.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"ro-section\"\u003e\n\u003cdiv class=\"ro-label\"\u003eKEY FEATURES\u003c\/div\u003e\n\u003ch3 class=\"ro-title\"\u003eSix-Layer Filtration Architecture\u003c\/h3\u003e\n\u003cdiv class=\"ro-feature-grid\"\u003e\n\u003cdiv class=\"ro-feature-card\"\u003e\n\u003cspan class=\"ro-feat-icon\"\u003e🛡️\u003c\/span\u003e\n\u003ch3\u003ePre-Sediment Layer\u003c\/h3\u003e\n\u003cp\u003eRemoves residual particulates, silt, and sediment before water enters the mineralization stages\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"ro-feature-card\"\u003e\n\u003cspan class=\"ro-feat-icon\"\u003e⚗️\u003c\/span\u003e\n\u003ch3\u003eMineral Filter Media\u003c\/h3\u003e\n\u003cp\u003eControlled slow-release of calcium and magnesium to remineralize RO water for balanced mineral content\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"ro-feature-card\"\u003e\n\u003cspan class=\"ro-feat-icon\"\u003e⚡\u003c\/span\u003e\n\u003ch3\u003eAlkaline Ceramic Phase\u003c\/h3\u003e\n\u003cp\u003eSpecially formulated ceramic media raises pH and provides additional mineral elution for optimal balance\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"ro-feature-card\"\u003e\n\u003cspan class=\"ro-feat-icon\"\u003e🌊\u003c\/span\u003e\n\u003ch3\u003eFar-Infrared Activation\u003c\/h3\u003e\n\u003cp\u003eActivated ceramic layer releases far-infrared rays to energize and activate water molecules\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"ro-feature-card\"\u003e\n\u003cspan class=\"ro-feat-icon\"\u003e🪨\u003c\/span\u003e\n\u003ch3\u003eCoral Media Layer\u003c\/h3\u003e\n\u003cp\u003eNatural coral provides final pH balancing, additional mineralization, and taste enhancement\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"ro-feature-card\"\u003e\n\u003cspan class=\"ro-feat-icon\"\u003e✨\u003c\/span\u003e\n\u003ch3\u003eFinal Sediment Polish\u003c\/h3\u003e\n\u003cp\u003eLast-stage sediment filtration ensures clean, polished water at point of use\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"ro-section\"\u003e\n\u003cdiv class=\"ro-label\"\u003eSPECIFICATIONS\u003c\/div\u003e\n\u003ch3 class=\"ro-title\"\u003eTechnical Details\u003c\/h3\u003e\n\u003ctable class=\"specs-table\"\u003e\n\u003ctr\u003e\n\u003ctd\u003eModel Number\u003c\/td\u003e\n\u003ctd\u003e560060 (Cross Reference: 105376)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFilter Dimensions\u003c\/td\u003e\n\u003ctd\u003e11-1\/2\" length × 2-1\/2\" diameter\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eConnection Type\u003c\/td\u003e\n\u003ctd\u003e1\/4\" quick connect fittings (both ends)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFilter Replacement\u003c\/td\u003e\n\u003ctd\u003eApproximately every 6 months (varies with water conditions and usage)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFunction\u003c\/td\u003e\n\u003ctd\u003ePost-filter for reverse osmosis systems\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFiltration Layers\u003c\/td\u003e\n\u003ctd\u003e6-stage: sediment, mineral, alkaline ceramic, activated ceramic, coral media, final sediment\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"ro-section\"\u003e\n\u003cdiv class=\"ro-label\"\u003eCOMPATIBILITY \u0026amp; APPLICATIONS\u003c\/div\u003e\n\u003ch3 class=\"ro-title\"\u003eSystem Integration\u003c\/h3\u003e\n\u003cp\u003eThe Watts Premier 560060 pH Balance Ceramic Filter is designed as a universal post-filter for all Watts Premier reverse osmosis systems and most standard RO units using 1\/4 inch tubing from system to faucet. This filter installs inline between the RO storage tank and the drinking water faucet. If your system uses 3\/8 inch faucet tubing, you will need a different kit or appropriate adapter fittings. Ideal for homeowners seeking to restore beneficial minerals and balanced pH after the RO membrane removes contaminants such as arsenic, lead, cysts, and dissolved solids.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"ro-callout\"\u003e\n\u003cp\u003eWatts Premier has engineered this multi-layer post-filter to deliver the purity of reverse osmosis with the health benefits of remineralized, pH-balanced drinking water—trusted by homeowners who understand filtration.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003c\/div\u003e","brand":"Watts","offers":[{"title":"Default Title","offer_id":35473635836066,"sku":"F560060","price":83.63,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0446\/7677\/6098\/files\/product-5537286193314-padded.jpg?v=1791927322"},{"product_id":"watts-wqcsc-kwik-change-ro-sediment-filter","title":"Watts (WQCSC) Kwik-Change RO Sediment Filter","description":"\n\u003clink href=\"https:\/\/fonts.googleapis.com\/css2?family=DM+Serif+Display:ital@0;1\u0026amp;family=DM+Sans:wght@300;400;500;600\u0026amp;display=swap\" rel=\"stylesheet\"\u003e\n\u003cstyle\u003e\n .ro-wrap {\n --deep:#0a1628;--ocean:#0f3460;--blue:#1565c0;--sky:#2196f3;--aqua:#4dd0e1;\n --white:#ffffff;--offwhite:#f2f7fc;--slate:#dce8f5;--text:#0d1f38;--muted:#4a6280;\n --gold:#f59e0b;--radius:12px;\n font-family:'DM Sans',sans-serif;color:var(--text);line-height:1.6;-webkit-font-smoothing:antialiased;overflow-wrap:break-word;word-break:break-word;min-width:0;\n }\n .ro-wrap .ro-hero{background:linear-gradient(135deg,var(--deep) 0%,var(--ocean) 50%,#1a5276 100%);color:var(--white);padding:52px 40px 44px;position:relative;overflow:hidden;border-radius:var(--radius) var(--radius) 0 0;}\n .ro-wrap .ro-hero::before{content:'';position:absolute;inset:0;background:radial-gradient(ellipse 70% 55% at 95% 45%,rgba(77,208,225,.15) 0%,transparent 65%),radial-gradient(ellipse 40% 40% at 5% 80%,rgba(255,255,255,.05) 0%,transparent 60%);pointer-events:none;}\n .ro-wrap .ro-eyebrow{font-size:13px !important;font-weight:600;letter-spacing:.18em;text-transform:uppercase;color:var(--aqua);margin-bottom:12px;}\n .ro-wrap .ro-hero h2{font-family:'DM Serif Display',serif;font-size:clamp(26px,4vw,40px) !important;line-height:1.15;font-weight:400;margin-bottom:16px;color:var(--white);}\n .ro-wrap .ro-hero h2 em{font-style:italic;color:var(--aqua);}\n .ro-wrap .ro-tagline{font-size:18px !important;color:rgba(255,255,255,.75);font-weight:300;margin-bottom:28px;}\n .ro-wrap .ro-badges{display:flex;flex-wrap:wrap;gap:10px;}\n .ro-wrap .ro-badge{display:inline-flex;align-items:center;gap:6px;background:rgba(255,255,255,.12);border:1px solid rgba(255,255,255,.2);color:var(--white);font-size:15px !important;font-weight:500;padding:6px 14px;border-radius:40px;backdrop-filter:blur(6px);}\n .ro-wrap .ro-callout{background:var(--offwhite);border-left:4px solid var(--sky);padding:20px 24px;}\n .ro-wrap .ro-callout p{font-size:18px !important;color:var(--text);line-height:1.7;margin:0;}\n .ro-wrap .ro-callout strong{color:var(--ocean);}\n .ro-wrap .ro-section{padding:36px 40px;border-bottom:1px solid var(--slate);}\n .ro-wrap .ro-label{font-size:13px !important;font-weight:700;letter-spacing:.2em;text-transform:uppercase;color:var(--sky);margin-bottom:8px;}\n .ro-wrap .ro-title{font-family:'DM Serif Display',serif;font-size:24px !important;color:var(--deep);margin-bottom:20px;font-weight:400;}\n .ro-wrap .stage-pipeline{display:flex;flex-direction:column;gap:0;margin-top:4px;}\n .ro-wrap .stage-row{display:flex;flex-direction:row;gap:12px;position:relative;min-width:0;align-items:flex-start;width:100%;box-sizing:border-box;}\n .ro-wrap .stage-row:not(:last-child) .stage-line{position:absolute;left:17px;top:40px;bottom:0;width:2px;background:var(--slate);}\n .ro-wrap .stage-num{width:36px;height:36px;min-width:36px;max-width:36px;border-radius:50%;background:linear-gradient(135deg,var(--ocean),var(--sky));color:white;display:flex;align-items:center;justify-content:center;font-size:16px !important;font-weight:700;flex:0 0 36px;position:relative;z-index:1;margin-top:16px;}\n .ro-wrap .stage-body{background:var(--offwhite);border:1px solid var(--slate);border-radius:var(--radius);padding:16px 18px;margin-bottom:12px;flex:1 1 0;min-width:0;overflow:hidden;overflow-wrap:break-word;word-break:break-word;box-sizing:border-box;}\n .ro-wrap .stage-body h3{font-size:20px !important;font-weight:600;color:var(--deep);margin-bottom:8px;margin-top:6px;}\n .ro-wrap .stage-tag{display:block;font-size:12px !important;font-weight:700;letter-spacing:.04em;text-transform:uppercase;background:var(--slate);color:var(--ocean);padding:3px 8px;border-radius:4px;margin-bottom:8px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;max-width:100%;line-height:1.5 !important;box-sizing:border-box;}\n .ro-wrap .stage-body p{font-size:18px !important;color:var(--muted);line-height:1.6;margin:0;display:block;}\n .ro-wrap .stage-body .stage-part{font-size:15px !important;color:var(--sky);margin-top:6px;font-weight:500;}\n .ro-wrap .specs-table{width:100%;border-collapse:collapse;font-size:18px !important;}\n .ro-wrap .specs-table tr{border-bottom:1px solid var(--slate);}\n .ro-wrap .specs-table tr:last-child{border-bottom:none;}\n .ro-wrap .specs-table td{padding:11px 6px;vertical-align:top;}\n .ro-wrap .specs-table td:first-child{font-weight:500;color:var(--deep);width:44%;padding-right:16px;}\n .ro-wrap .specs-table td:last-child{color:var(--muted);}\n .ro-wrap .specs-table tr:hover td{background:var(--offwhite);}\n .ro-wrap .conditions-table{width:100%;border-collapse:collapse;font-size:18px !important;margin-top:4px;}\n .ro-wrap .conditions-table th{background:var(--deep);color:var(--white);font-size:15px 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!important;font-weight:600;color:var(--deep);margin-bottom:6px;}\n .ro-wrap .ro-feature-card p{font-size:18px !important;color:var(--muted);line-height:1.55;margin:0;}\n .ro-wrap .pro-tip{display:block;background:#fffbeb;border:1px solid #f5d87a;border-radius:var(--radius);padding:18px 20px;margin-top:20px;box-sizing:border-box;width:100% !important;}\n .ro-wrap .pro-tip-icon{font-size:22px !important;display:inline;margin-right:8px;line-height:1.6 !important;}\n .ro-wrap .pro-tip p{font-size:18px !important;color:#5a4500;line-height:1.6 !important;margin:0;display:block;width:100%;}\n .ro-wrap .pro-tip strong{color:#3d2e00;}\n .ro-wrap .install-steps{counter-reset:step;list-style:none;padding:0;margin:4px 0 0;display:flex;flex-direction:column;gap:14px;}\n .ro-wrap .install-steps li{counter-increment:step;display:flex;align-items:flex-start;gap:14px;font-size:18px !important;color:var(--text);}\n .ro-wrap .install-steps li::before{content:counter(step);display:flex;align-items:center;justify-content:center;width:28px;height:28px;border-radius:50%;background:var(--ocean);color:white;font-size:15px !important;font-weight:700;flex-shrink:0;margin-top:1px;}\n .ro-wrap .filter-schedule{display:grid;grid-template-columns:repeat(auto-fill,minmax(min(180px,100%),1fr));gap:12px;margin-top:4px;}\n .ro-wrap .schedule-card{background:var(--offwhite);border:1px solid var(--slate);border-radius:var(--radius);padding:16px;}\n .ro-wrap .schedule-card .interval{font-size:22px !important;font-family:'DM Serif Display',serif;color:var(--sky);font-weight:400;margin-bottom:4px;}\n .ro-wrap .schedule-card h4{font-size:18px !important;font-weight:600;color:var(--deep);margin-bottom:4px;}\n .ro-wrap .schedule-card p{font-size:15px !important;color:var(--muted);margin:0;line-height:1.45;}\n .ro-wrap .benefits-strip{display:flex;flex-wrap:wrap;background:var(--deep);color:var(--white);border-radius:0 0 var(--radius) var(--radius);overflow:hidden;}\n .ro-wrap .benefit-item{flex:1 1 200px;padding:24px 22px;border-right:1px solid rgba(255,255,255,.1);}\n .ro-wrap .benefit-item:last-child{border-right:none;}\n .ro-wrap .bi-icon{font-size:22px !important;margin-bottom:10px;}\n .ro-wrap .benefit-item h4{font-size:15px !important;font-weight:600;color:var(--aqua);margin-bottom:5px;text-transform:uppercase;letter-spacing:.05em;}\n .ro-wrap .benefit-item p{font-size:15px !important;color:rgba(255,255,255,.65);line-height:1.55;margin:0;}\n .ro-wrap .faucet-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(min(200px,100%),1fr));gap:16px;margin-top:4px;}\n .ro-wrap .faucet-card{border:2px solid var(--slate);border-radius:var(--radius);padding:18px;text-align:center;}\n .ro-wrap .faucet-icon{font-size:28px !important;margin-bottom:10px;}\n .ro-wrap .faucet-card h4{font-size:18px !important;font-weight:600;color:var(--deep);margin-bottom:6px;}\n .ro-wrap .faucet-card p{font-size:15px !important;color:var(--muted);line-height:1.5;margin:0;}\n .ro-wrap .spec-cards{display:grid;grid-template-columns:repeat(auto-fill,minmax(min(180px,100%),1fr));gap:12px;margin-top:4px;}\n .ro-wrap .spec-card{background:var(--offwhite);border:1px solid var(--slate);border-radius:var(--radius);padding:16px;}\n .ro-wrap .spec-card .sc-label{font-size:13px !important;font-weight:700;letter-spacing:.08em;color:var(--sky);text-transform:uppercase;margin-bottom:4px;}\n .ro-wrap .spec-card .sc-value{font-size:20px !important;font-weight:600;color:var(--deep);margin-bottom:4px;}\n .ro-wrap .spec-card .sc-note{font-size:15px !important;color:var(--muted);}\n @media(max-width:640px){\n .ro-wrap .ro-hero{padding:36px 24px 32px;}\n .ro-wrap .ro-section{padding:28px 20px;}\n .ro-wrap .ro-feature-grid,.ro-wrap .faucet-grid,.ro-wrap .filter-schedule,.ro-wrap .spec-cards{grid-template-columns:1fr;}\n .ro-wrap .benefits-strip{flex-direction:column;}\n .ro-wrap .benefit-item{border-right:none;border-bottom:1px solid rgba(255,255,255,.1);}\n }\n \/* ── Nuclear override — force all text inside ro-wrap to be readable ── *\/\n .ro-wrap p,\n .ro-wrap li,\n .ro-wrap td,\n .ro-wrap th,\n .ro-wrap .ro-section \u003e p {\n font-size: 18px !important;\n line-height: 1.6 !important;\n }\n .ro-wrap .ro-section \u003e p,\n .ro-wrap .ro-callout p,\n .ro-wrap .stage-body p,\n .ro-wrap .ro-feature-card p,\n .ro-wrap .schedule-card p,\n .ro-wrap .faucet-card p,\n .ro-wrap .spec-card .sc-note,\n .ro-wrap .pro-tip p {\n font-size: 18px !important;\n line-height: 1.6 !important;\n }\n .ro-wrap h2 { font-size: clamp(26px,4vw,40px) !important; line-height:1.15 !important; }\n .ro-wrap h3 { font-size: 20px !important; line-height:1.3 !important; }\n .ro-wrap h4 { font-size: 18px !important; line-height:1.3 !important; }\n .ro-wrap .ro-label,\n .ro-wrap .stage-tag,\n .ro-wrap .sc-label { font-size: 14px !important; }\n .ro-wrap .ro-title { font-size: 24px !important; }\n .ro-wrap .interval { font-size: 22px !important; }\n .ro-wrap .stage-num { font-size: 16px !important; }\n .ro-wrap .ro-eyebrow { font-size: 14px !important; }\n .ro-wrap .ro-badge { font-size: 15px !important; }\n\u003c\/style\u003e\n\u003cdiv class=\"ro-wrap\"\u003e\n\n\u003cdiv class=\"ro-hero\"\u003e\n\u003cdiv class=\"ro-eyebrow\"\u003eWatts Water\u003c\/div\u003e\n\u003ch2\u003eWatts WQCSC Kwik-Change RO Sediment Filter\u003c\/h2\u003e\n\u003cdiv class=\"ro-tagline\"\u003eQuarter-turn sediment prefilter cartridge for WQC4 reverse osmosis systems\u003c\/div\u003e\n\u003cdiv class=\"ro-badges\"\u003e\n\u003cspan class=\"ro-badge\"\u003e5 Micron Meltblown\u003c\/span\u003e\n\u003cspan class=\"ro-badge\"\u003eTool-Free Change\u003c\/span\u003e\n\u003cspan class=\"ro-badge\"\u003eDouble O-Ring Seal\u003c\/span\u003e\n\u003cspan class=\"ro-badge\"\u003eAuto Shut-Off Valve\u003c\/span\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"ro-callout\"\u003e\n\u003cp\u003eThe Watts WQCSC series uses a quarter-twist quick-change design that makes filter replacement faster and cleaner than traditional housing systems. Internal valves automatically stop water flow when you remove the cartridge, and double o-rings prevent leaks during installation.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"ro-section\"\u003e\n\u003cdiv class=\"ro-label\"\u003eSPECIFICATIONS\u003c\/div\u003e\n\u003ch3 class=\"ro-title\"\u003eFilter Details\u003c\/h3\u003e\n\u003ctable class=\"specs-table\"\u003e\n\u003ctr\u003e\n\u003ctd class=\"specs-label\"\u003eFunction\u003c\/td\u003e\n\u003ctd class=\"specs-value\"\u003eSediment, dirt, rust removal\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"specs-label\"\u003eFiltration Rating\u003c\/td\u003e\n\u003ctd class=\"specs-value\"\u003e5 micron nominal\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"specs-label\"\u003eMedia Type\u003c\/td\u003e\n\u003ctd class=\"specs-value\"\u003eMeltblown polypropylene\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"specs-label\"\u003eAvailable Sizes\u003c\/td\u003e\n\u003ctd class=\"specs-value\"\u003e10\", 11\", and 13\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"specs-label\"\u003eService Life\u003c\/td\u003e\n\u003ctd class=\"specs-value\"\u003e6 months (typical)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"specs-label\"\u003eInstallation\u003c\/td\u003e\n\u003ctd class=\"specs-value\"\u003e1\/4 turn, no tools required\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"specs-label\"\u003ePart Numbers\u003c\/td\u003e\n\u003ctd class=\"specs-value\"\u003eWQCSC10, WQCSC11, WQCSC13\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"ro-section\"\u003e\n\u003cdiv class=\"ro-label\"\u003eCOMPATIBILITY\u003c\/div\u003e\n\u003ch3 class=\"ro-title\"\u003eSystem Fit\u003c\/h3\u003e\n\u003cp\u003eDesigned specifically for Watts WQC4 reverse osmosis systems. Also compatible with PWKCSED13 filters. This cartridge is not compatible with older Watts Premier branded systems, which use a different mounting design. Verify your system uses the Kwik-Change quarter-turn socket before ordering.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003c\/div\u003e","brand":"Watts","offers":[{"title":"11\"","offer_id":35473745445026,"sku":"WQCSC11","price":27.05,"currency_code":"USD","in_stock":true},{"title":"13\"","offer_id":35473745510562,"sku":"WQCSC13","price":28.28,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0446\/7677\/6098\/files\/product-5537315848354-padded.jpg?v=1777271064"},{"product_id":"watts-wqcgac-kwik-change-ro-gac-filter","title":"Watts (WQCGAC) Kwik-Change RO GAC Filter","description":"\n\u003clink href=\"https:\/\/fonts.googleapis.com\/css2?family=DM+Serif+Display:ital@0;1\u0026amp;family=DM+Sans:wght@300;400;500;600\u0026amp;display=swap\" rel=\"stylesheet\"\u003e\n\u003cstyle\u003e\n .ro-wrap {\n --deep:#0a1628;--ocean:#0f3460;--blue:#1565c0;--sky:#2196f3;--aqua:#4dd0e1;\n --white:#ffffff;--offwhite:#f2f7fc;--slate:#dce8f5;--text:#0d1f38;--muted:#4a6280;\n --gold:#f59e0b;--radius:12px;\n font-family:'DM Sans',sans-serif;color:var(--text);line-height:1.6;-webkit-font-smoothing:antialiased;overflow-wrap:break-word;word-break:break-word;min-width:0;\n }\n .ro-wrap .ro-hero{background:linear-gradient(135deg,var(--deep) 0%,var(--ocean) 50%,#1a5276 100%);color:var(--white);padding:52px 40px 44px;position:relative;overflow:hidden;border-radius:var(--radius) var(--radius) 0 0;}\n .ro-wrap .ro-hero::before{content:'';position:absolute;inset:0;background:radial-gradient(ellipse 70% 55% at 95% 45%,rgba(77,208,225,.15) 0%,transparent 65%),radial-gradient(ellipse 40% 40% at 5% 80%,rgba(255,255,255,.05) 0%,transparent 60%);pointer-events:none;}\n .ro-wrap .ro-eyebrow{font-size:13px !important;font-weight:600;letter-spacing:.18em;text-transform:uppercase;color:var(--aqua);margin-bottom:12px;}\n .ro-wrap .ro-hero h2{font-family:'DM Serif Display',serif;font-size:clamp(26px,4vw,40px) !important;line-height:1.15;font-weight:400;margin-bottom:16px;color:var(--white);}\n .ro-wrap .ro-hero h2 em{font-style:italic;color:var(--aqua);}\n .ro-wrap .ro-tagline{font-size:18px !important;color:rgba(255,255,255,.75);font-weight:300;margin-bottom:28px;}\n .ro-wrap .ro-badges{display:flex;flex-wrap:wrap;gap:10px;}\n .ro-wrap .ro-badge{display:inline-flex;align-items:center;gap:6px;background:rgba(255,255,255,.12);border:1px solid rgba(255,255,255,.2);color:var(--white);font-size:15px !important;font-weight:500;padding:6px 14px;border-radius:40px;backdrop-filter:blur(6px);}\n .ro-wrap .ro-callout{background:var(--offwhite);border-left:4px solid var(--sky);padding:20px 24px;}\n .ro-wrap .ro-callout p{font-size:18px !important;color:var(--text);line-height:1.7;margin:0;}\n .ro-wrap .ro-callout strong{color:var(--ocean);}\n .ro-wrap .ro-section{padding:36px 40px;border-bottom:1px solid var(--slate);}\n .ro-wrap .ro-label{font-size:13px !important;font-weight:700;letter-spacing:.2em;text-transform:uppercase;color:var(--sky);margin-bottom:8px;}\n .ro-wrap .ro-title{font-family:'DM Serif Display',serif;font-size:24px !important;color:var(--deep);margin-bottom:20px;font-weight:400;}\n .ro-wrap .stage-pipeline{display:flex;flex-direction:column;gap:0;margin-top:4px;}\n .ro-wrap .stage-row{display:flex;flex-direction:row;gap:12px;position:relative;min-width:0;align-items:flex-start;width:100%;box-sizing:border-box;}\n .ro-wrap .stage-row:not(:last-child) .stage-line{position:absolute;left:17px;top:40px;bottom:0;width:2px;background:var(--slate);}\n .ro-wrap .stage-num{width:36px;height:36px;min-width:36px;max-width:36px;border-radius:50%;background:linear-gradient(135deg,var(--ocean),var(--sky));color:white;display:flex;align-items:center;justify-content:center;font-size:16px !important;font-weight:700;flex:0 0 36px;position:relative;z-index:1;margin-top:16px;}\n .ro-wrap .stage-body{background:var(--offwhite);border:1px solid var(--slate);border-radius:var(--radius);padding:16px 18px;margin-bottom:12px;flex:1 1 0;min-width:0;overflow:hidden;overflow-wrap:break-word;word-break:break-word;box-sizing:border-box;}\n .ro-wrap .stage-body h3{font-size:20px !important;font-weight:600;color:var(--deep);margin-bottom:8px;margin-top:6px;}\n .ro-wrap .stage-tag{display:block;font-size:12px !important;font-weight:700;letter-spacing:.04em;text-transform:uppercase;background:var(--slate);color:var(--ocean);padding:3px 8px;border-radius:4px;margin-bottom:8px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;max-width:100%;line-height:1.5 !important;box-sizing:border-box;}\n .ro-wrap .stage-body p{font-size:18px !important;color:var(--muted);line-height:1.6;margin:0;display:block;}\n .ro-wrap .stage-body .stage-part{font-size:15px !important;color:var(--sky);margin-top:6px;font-weight:500;}\n .ro-wrap .specs-table{width:100%;border-collapse:collapse;font-size:18px !important;}\n .ro-wrap .specs-table tr{border-bottom:1px solid var(--slate);}\n .ro-wrap .specs-table tr:last-child{border-bottom:none;}\n .ro-wrap .specs-table td{padding:11px 6px;vertical-align:top;}\n .ro-wrap .specs-table td:first-child{font-weight:500;color:var(--deep);width:44%;padding-right:16px;}\n .ro-wrap .specs-table td:last-child{color:var(--muted);}\n .ro-wrap .specs-table tr:hover td{background:var(--offwhite);}\n .ro-wrap .conditions-table{width:100%;border-collapse:collapse;font-size:18px !important;margin-top:4px;}\n .ro-wrap .conditions-table th{background:var(--deep);color:var(--white);font-size:15px !important;font-weight:600;letter-spacing:.06em;text-transform:uppercase;padding:10px 12px;text-align:left;}\n .ro-wrap .conditions-table th:first-child{border-radius:var(--radius) 0 0 0;}\n .ro-wrap .conditions-table th:last-child{border-radius:0 var(--radius) 0 0;}\n .ro-wrap .conditions-table td{padding:10px 12px;border-bottom:1px solid var(--slate);color:var(--text);}\n .ro-wrap .conditions-table tr:nth-child(even) td{background:var(--offwhite);}\n .ro-wrap .ro-feature-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(min(220px,100%),1fr));gap:16px;margin-top:4px;}\n .ro-wrap .ro-feature-card{background:var(--offwhite);border:1px solid var(--slate);border-radius:var(--radius);padding:20px 18px;}\n .ro-wrap .ro-feat-icon{width:40px;height:40px;background:linear-gradient(135deg,var(--ocean),var(--sky));border-radius:10px;display:flex;align-items:center;justify-content:center;margin-bottom:12px;}\n .ro-wrap .ro-feature-card h3{font-size:20px !important;font-weight:600;color:var(--deep);margin-bottom:6px;}\n .ro-wrap .ro-feature-card p{font-size:18px !important;color:var(--muted);line-height:1.55;margin:0;}\n .ro-wrap .pro-tip{display:block;background:#fffbeb;border:1px solid #f5d87a;border-radius:var(--radius);padding:18px 20px;margin-top:20px;box-sizing:border-box;width:100% !important;}\n .ro-wrap .pro-tip-icon{font-size:22px !important;display:inline;margin-right:8px;line-height:1.6 !important;}\n .ro-wrap .pro-tip p{font-size:18px !important;color:#5a4500;line-height:1.6 !important;margin:0;display:block;width:100%;}\n .ro-wrap .pro-tip strong{color:#3d2e00;}\n .ro-wrap .install-steps{counter-reset:step;list-style:none;padding:0;margin:4px 0 0;display:flex;flex-direction:column;gap:14px;}\n .ro-wrap .install-steps li{counter-increment:step;display:flex;align-items:flex-start;gap:14px;font-size:18px !important;color:var(--text);}\n .ro-wrap .install-steps li::before{content:counter(step);display:flex;align-items:center;justify-content:center;width:28px;height:28px;border-radius:50%;background:var(--ocean);color:white;font-size:15px !important;font-weight:700;flex-shrink:0;margin-top:1px;}\n .ro-wrap .filter-schedule{display:grid;grid-template-columns:repeat(auto-fill,minmax(min(180px,100%),1fr));gap:12px;margin-top:4px;}\n .ro-wrap .schedule-card{background:var(--offwhite);border:1px solid var(--slate);border-radius:var(--radius);padding:16px;}\n .ro-wrap .schedule-card .interval{font-size:22px !important;font-family:'DM Serif Display',serif;color:var(--sky);font-weight:400;margin-bottom:4px;}\n .ro-wrap .schedule-card h4{font-size:18px !important;font-weight:600;color:var(--deep);margin-bottom:4px;}\n .ro-wrap .schedule-card p{font-size:15px !important;color:var(--muted);margin:0;line-height:1.45;}\n .ro-wrap .benefits-strip{display:flex;flex-wrap:wrap;background:var(--deep);color:var(--white);border-radius:0 0 var(--radius) var(--radius);overflow:hidden;}\n .ro-wrap .benefit-item{flex:1 1 200px;padding:24px 22px;border-right:1px solid rgba(255,255,255,.1);}\n .ro-wrap .benefit-item:last-child{border-right:none;}\n .ro-wrap .bi-icon{font-size:22px !important;margin-bottom:10px;}\n .ro-wrap .benefit-item h4{font-size:15px !important;font-weight:600;color:var(--aqua);margin-bottom:5px;text-transform:uppercase;letter-spacing:.05em;}\n .ro-wrap .benefit-item p{font-size:15px !important;color:rgba(255,255,255,.65);line-height:1.55;margin:0;}\n .ro-wrap .faucet-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(min(200px,100%),1fr));gap:16px;margin-top:4px;}\n .ro-wrap .faucet-card{border:2px solid var(--slate);border-radius:var(--radius);padding:18px;text-align:center;}\n .ro-wrap .faucet-icon{font-size:28px !important;margin-bottom:10px;}\n .ro-wrap .faucet-card h4{font-size:18px !important;font-weight:600;color:var(--deep);margin-bottom:6px;}\n .ro-wrap .faucet-card p{font-size:15px !important;color:var(--muted);line-height:1.5;margin:0;}\n .ro-wrap .spec-cards{display:grid;grid-template-columns:repeat(auto-fill,minmax(min(180px,100%),1fr));gap:12px;margin-top:4px;}\n .ro-wrap .spec-card{background:var(--offwhite);border:1px solid var(--slate);border-radius:var(--radius);padding:16px;}\n .ro-wrap .spec-card .sc-label{font-size:13px !important;font-weight:700;letter-spacing:.08em;color:var(--sky);text-transform:uppercase;margin-bottom:4px;}\n .ro-wrap .spec-card .sc-value{font-size:20px !important;font-weight:600;color:var(--deep);margin-bottom:4px;}\n .ro-wrap .spec-card .sc-note{font-size:15px !important;color:var(--muted);}\n @media(max-width:640px){\n .ro-wrap .ro-hero{padding:36px 24px 32px;}\n .ro-wrap .ro-section{padding:28px 20px;}\n .ro-wrap .ro-feature-grid,.ro-wrap .faucet-grid,.ro-wrap .filter-schedule,.ro-wrap .spec-cards{grid-template-columns:1fr;}\n .ro-wrap .benefits-strip{flex-direction:column;}\n .ro-wrap .benefit-item{border-right:none;border-bottom:1px solid rgba(255,255,255,.1);}\n }\n \/* ── Nuclear override — force all text inside ro-wrap to be readable ── *\/\n .ro-wrap p,\n .ro-wrap li,\n .ro-wrap td,\n .ro-wrap th,\n .ro-wrap .ro-section \u003e p {\n font-size: 18px !important;\n line-height: 1.6 !important;\n }\n .ro-wrap .ro-section \u003e p,\n .ro-wrap .ro-callout p,\n .ro-wrap .stage-body p,\n .ro-wrap .ro-feature-card p,\n .ro-wrap .schedule-card p,\n .ro-wrap .faucet-card p,\n .ro-wrap .spec-card .sc-note,\n .ro-wrap .pro-tip p {\n font-size: 18px !important;\n line-height: 1.6 !important;\n }\n .ro-wrap h2 { font-size: clamp(26px,4vw,40px) !important; line-height:1.15 !important; }\n .ro-wrap h3 { font-size: 20px !important; line-height:1.3 !important; }\n .ro-wrap h4 { font-size: 18px !important; line-height:1.3 !important; }\n .ro-wrap .ro-label,\n .ro-wrap .stage-tag,\n .ro-wrap .sc-label { font-size: 14px !important; }\n .ro-wrap .ro-title { font-size: 24px !important; }\n .ro-wrap .interval { font-size: 22px !important; }\n .ro-wrap .stage-num { font-size: 16px !important; }\n .ro-wrap .ro-eyebrow { font-size: 14px !important; }\n .ro-wrap .ro-badge { font-size: 15px !important; }\n\u003c\/style\u003e\n\u003cdiv class=\"ro-wrap\"\u003e\n\n\u003cdiv class=\"ro-callout\"\u003e\nThe Watts WQCGAC Kwik-Change RO GAC Filter delivers reliable granular activated carbon filtration in a quick-change cartridge format designed for Watts Kwik-Change reverse osmosis systems. Available in 10\", 11\", and 13\" sizes with 10-micron nominal filtration, this GAC filter reduces chlorine, taste, and odor while featuring double o-ring seals and internal shut-off valves for leak-free cartridge changes.\n\u003c\/div\u003e\n\n\u003cdiv class=\"ro-section\"\u003e\n\u003cdiv class=\"ro-label\"\u003eSPECIFICATIONS\u003c\/div\u003e\n\u003ch2 class=\"ro-title\"\u003eCore Filter Specs\u003c\/h2\u003e\n\u003cdiv class=\"spec-cards\"\u003e\n\u003cdiv class=\"spec-card\"\u003e\n\u003cdiv class=\"sc-label\"\u003eFilter Media\u003c\/div\u003e\n\u003cdiv class=\"sc-value\"\u003eGAC\u003c\/div\u003e\n\u003cdiv class=\"sc-note\"\u003eGranular Activated Carbon\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"spec-card\"\u003e\n\u003cdiv class=\"sc-label\"\u003eMicron Rating\u003c\/div\u003e\n\u003cdiv class=\"sc-value\"\u003e10 Nominal\u003c\/div\u003e\n\u003cdiv class=\"sc-note\"\u003eSediment filtration capacity\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"spec-card\"\u003e\n\u003cdiv class=\"sc-label\"\u003eAvailable Sizes\u003c\/div\u003e\n\u003cdiv class=\"sc-value\"\u003e10\", 11\", 13\"\u003c\/div\u003e\n\u003cdiv class=\"sc-note\"\u003eMultiple length options\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"spec-card\"\u003e\n\u003cdiv class=\"sc-label\"\u003eConnection Type\u003c\/div\u003e\n\u003cdiv class=\"sc-value\"\u003eKwik-Change\u003c\/div\u003e\n\u003cdiv class=\"sc-note\"\u003eQuick-twist design\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"spec-card\"\u003e\n\u003cdiv class=\"sc-label\"\u003eSeal Design\u003c\/div\u003e\n\u003cdiv class=\"sc-value\"\u003eDouble O-Ring\u003c\/div\u003e\n\u003cdiv class=\"sc-note\"\u003eLeak-proof connections\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"spec-card\"\u003e\n\u003cdiv class=\"sc-label\"\u003eShut-Off Valve\u003c\/div\u003e\n\u003cdiv class=\"sc-value\"\u003eInternal\u003c\/div\u003e\n\u003cdiv class=\"sc-note\"\u003eAutomatic flow stop\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"ro-section\"\u003e\n\u003cdiv class=\"ro-label\"\u003eTECHNICAL DETAILS\u003c\/div\u003e\n\u003ch2 class=\"ro-title\"\u003eFilter Performance \u0026amp; Design\u003c\/h2\u003e\n\u003ctable class=\"specs-table\"\u003e\n\u003ctr\u003e\n\u003ctd\u003eModel Numbers\u003c\/td\u003e\n\u003ctd\u003eWQCGAC13, WQCGAC11, WQCGAC10\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePrimary Function\u003c\/td\u003e\n\u003ctd\u003eChlorine, taste, and odor reduction via granular activated carbon\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNominal Micron Rating\u003c\/td\u003e\n\u003ctd\u003e10 micron\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCartridge Lengths\u003c\/td\u003e\n\u003ctd\u003e10 inch, 11 inch, 13 inch\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSeal Type\u003c\/td\u003e\n\u003ctd\u003eDouble o-ring design for leak prevention\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFlow Control\u003c\/td\u003e\n\u003ctd\u003eInternal shut-off valves activate during cartridge removal\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBrand\u003c\/td\u003e\n\u003ctd\u003eWatts\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"ro-section\"\u003e\n\u003cdiv class=\"ro-label\"\u003eCOMPATIBILITY \u0026amp; APPLICATIONS\u003c\/div\u003e\n\u003ch2 class=\"ro-title\"\u003eSystem Compatibility\u003c\/h2\u003e\n\u003cp\u003eThe WQCGAC Kwik-Change filter cartridge is designed exclusively for Watts Kwik-Change reverse osmosis systems and is not compatible with older Watts Premier systems. This filter is cross-compatible with PWKCGAC13 model filters, providing flexibility in sourcing replacement cartridges. The quick-change design with internal shut-off valves allows for tool-free cartridge replacement without depressurizing the system or creating spills. Ideal for use as a post-filter or pre-filter stage in residential RO systems where chlorine reduction and taste\/odor improvement are priorities. The double o-ring seal design ensures reliable, leak-free operation throughout the filter's service life.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"pro-tip\"\u003e\n💧 \u003cstrong\u003ePro Tip:\u003c\/strong\u003e The internal shut-off valve means you can swap this cartridge without turning off your water supply or draining the system. Just twist, pull, and replace. Keep a spare on hand so you're never caught without clean water during routine maintenance.\n\u003c\/div\u003e\n\n\u003c\/div\u003e","brand":"Watts","offers":[{"title":"11\"","offer_id":35473750786210,"sku":"WQCGAC11","price":37.31,"currency_code":"USD","in_stock":true},{"title":"13\"","offer_id":35473750818978,"sku":"WQCGAC13","price":39.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0446\/7677\/6098\/files\/product-5537316274338-padded.jpg?v=1777271042"},{"product_id":"watts-wqccc-kwik-change-ro-pre-carbon-block-filter","title":"Watts (WQCCC) Kwik-Change RO Pre-Carbon Block Filter","description":"\n\u003clink href=\"https:\/\/fonts.googleapis.com\/css2?family=DM+Serif+Display:ital@0;1\u0026amp;family=DM+Sans:wght@300;400;500;600\u0026amp;display=swap\" rel=\"stylesheet\"\u003e\n\u003cstyle\u003e\n .ro-wrap {\n --deep:#0a1628;--ocean:#0f3460;--blue:#1565c0;--sky:#2196f3;--aqua:#4dd0e1;\n --white:#ffffff;--offwhite:#f2f7fc;--slate:#dce8f5;--text:#0d1f38;--muted:#4a6280;\n --gold:#f59e0b;--radius:12px;\n font-family:'DM Sans',sans-serif;color:var(--text);line-height:1.6;-webkit-font-smoothing:antialiased;overflow-wrap:break-word;word-break:break-word;min-width:0;\n }\n .ro-wrap .ro-hero{background:linear-gradient(135deg,var(--deep) 0%,var(--ocean) 50%,#1a5276 100%);color:var(--white);padding:52px 40px 44px;position:relative;overflow:hidden;border-radius:var(--radius) var(--radius) 0 0;}\n .ro-wrap .ro-hero::before{content:'';position:absolute;inset:0;background:radial-gradient(ellipse 70% 55% at 95% 45%,rgba(77,208,225,.15) 0%,transparent 65%),radial-gradient(ellipse 40% 40% at 5% 80%,rgba(255,255,255,.05) 0%,transparent 60%);pointer-events:none;}\n .ro-wrap .ro-eyebrow{font-size:13px !important;font-weight:600;letter-spacing:.18em;text-transform:uppercase;color:var(--aqua);margin-bottom:12px;}\n .ro-wrap .ro-hero h2{font-family:'DM Serif Display',serif;font-size:clamp(26px,4vw,40px) !important;line-height:1.15;font-weight:400;margin-bottom:16px;color:var(--white);}\n .ro-wrap .ro-hero h2 em{font-style:italic;color:var(--aqua);}\n .ro-wrap .ro-tagline{font-size:18px !important;color:rgba(255,255,255,.75);font-weight:300;margin-bottom:28px;}\n .ro-wrap .ro-badges{display:flex;flex-wrap:wrap;gap:10px;}\n .ro-wrap .ro-badge{display:inline-flex;align-items:center;gap:6px;background:rgba(255,255,255,.12);border:1px solid rgba(255,255,255,.2);color:var(--white);font-size:15px !important;font-weight:500;padding:6px 14px;border-radius:40px;backdrop-filter:blur(6px);}\n .ro-wrap .ro-callout{background:var(--offwhite);border-left:4px solid var(--sky);padding:20px 24px;}\n .ro-wrap .ro-callout p{font-size:18px !important;color:var(--text);line-height:1.7;margin:0;}\n .ro-wrap .ro-callout strong{color:var(--ocean);}\n .ro-wrap .ro-section{padding:36px 40px;border-bottom:1px solid var(--slate);}\n .ro-wrap .ro-label{font-size:13px !important;font-weight:700;letter-spacing:.2em;text-transform:uppercase;color:var(--sky);margin-bottom:8px;}\n .ro-wrap .ro-title{font-family:'DM Serif Display',serif;font-size:24px !important;color:var(--deep);margin-bottom:20px;font-weight:400;}\n .ro-wrap .stage-pipeline{display:flex;flex-direction:column;gap:0;margin-top:4px;}\n .ro-wrap .stage-row{display:flex;flex-direction:row;gap:12px;position:relative;min-width:0;align-items:flex-start;width:100%;box-sizing:border-box;}\n .ro-wrap .stage-row:not(:last-child) .stage-line{position:absolute;left:17px;top:40px;bottom:0;width:2px;background:var(--slate);}\n .ro-wrap .stage-num{width:36px;height:36px;min-width:36px;max-width:36px;border-radius:50%;background:linear-gradient(135deg,var(--ocean),var(--sky));color:white;display:flex;align-items:center;justify-content:center;font-size:16px !important;font-weight:700;flex:0 0 36px;position:relative;z-index:1;margin-top:16px;}\n .ro-wrap .stage-body{background:var(--offwhite);border:1px solid var(--slate);border-radius:var(--radius);padding:16px 18px;margin-bottom:12px;flex:1 1 0;min-width:0;overflow:hidden;overflow-wrap:break-word;word-break:break-word;box-sizing:border-box;}\n .ro-wrap .stage-body h3{font-size:20px !important;font-weight:600;color:var(--deep);margin-bottom:8px;margin-top:6px;}\n .ro-wrap .stage-tag{display:block;font-size:12px !important;font-weight:700;letter-spacing:.04em;text-transform:uppercase;background:var(--slate);color:var(--ocean);padding:3px 8px;border-radius:4px;margin-bottom:8px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;max-width:100%;line-height:1.5 !important;box-sizing:border-box;}\n .ro-wrap .stage-body p{font-size:18px !important;color:var(--muted);line-height:1.6;margin:0;display:block;}\n .ro-wrap .stage-body .stage-part{font-size:15px !important;color:var(--sky);margin-top:6px;font-weight:500;}\n .ro-wrap .specs-table{width:100%;border-collapse:collapse;font-size:18px !important;}\n .ro-wrap .specs-table tr{border-bottom:1px solid var(--slate);}\n .ro-wrap .specs-table tr:last-child{border-bottom:none;}\n .ro-wrap .specs-table td{padding:11px 6px;vertical-align:top;}\n .ro-wrap .specs-table td:first-child{font-weight:500;color:var(--deep);width:44%;padding-right:16px;}\n .ro-wrap .specs-table td:last-child{color:var(--muted);}\n .ro-wrap .specs-table tr:hover td{background:var(--offwhite);}\n .ro-wrap .conditions-table{width:100%;border-collapse:collapse;font-size:18px !important;margin-top:4px;}\n .ro-wrap .conditions-table th{background:var(--deep);color:var(--white);font-size:15px !important;font-weight:600;letter-spacing:.06em;text-transform:uppercase;padding:10px 12px;text-align:left;}\n .ro-wrap .conditions-table th:first-child{border-radius:var(--radius) 0 0 0;}\n .ro-wrap .conditions-table th:last-child{border-radius:0 var(--radius) 0 0;}\n .ro-wrap .conditions-table td{padding:10px 12px;border-bottom:1px solid var(--slate);color:var(--text);}\n .ro-wrap .conditions-table tr:nth-child(even) td{background:var(--offwhite);}\n .ro-wrap .ro-feature-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(min(220px,100%),1fr));gap:16px;margin-top:4px;}\n .ro-wrap .ro-feature-card{background:var(--offwhite);border:1px solid var(--slate);border-radius:var(--radius);padding:20px 18px;}\n .ro-wrap .ro-feat-icon{width:40px;height:40px;background:linear-gradient(135deg,var(--ocean),var(--sky));border-radius:10px;display:flex;align-items:center;justify-content:center;margin-bottom:12px;}\n .ro-wrap .ro-feature-card h3{font-size:20px !important;font-weight:600;color:var(--deep);margin-bottom:6px;}\n .ro-wrap .ro-feature-card p{font-size:18px !important;color:var(--muted);line-height:1.55;margin:0;}\n .ro-wrap .pro-tip{display:block;background:#fffbeb;border:1px solid #f5d87a;border-radius:var(--radius);padding:18px 20px;margin-top:20px;box-sizing:border-box;width:100% !important;}\n .ro-wrap .pro-tip-icon{font-size:22px !important;display:inline;margin-right:8px;line-height:1.6 !important;}\n .ro-wrap .pro-tip p{font-size:18px !important;color:#5a4500;line-height:1.6 !important;margin:0;display:block;width:100%;}\n .ro-wrap .pro-tip strong{color:#3d2e00;}\n .ro-wrap .install-steps{counter-reset:step;list-style:none;padding:0;margin:4px 0 0;display:flex;flex-direction:column;gap:14px;}\n .ro-wrap .install-steps li{counter-increment:step;display:flex;align-items:flex-start;gap:14px;font-size:18px !important;color:var(--text);}\n .ro-wrap .install-steps li::before{content:counter(step);display:flex;align-items:center;justify-content:center;width:28px;height:28px;border-radius:50%;background:var(--ocean);color:white;font-size:15px !important;font-weight:700;flex-shrink:0;margin-top:1px;}\n .ro-wrap .filter-schedule{display:grid;grid-template-columns:repeat(auto-fill,minmax(min(180px,100%),1fr));gap:12px;margin-top:4px;}\n .ro-wrap .schedule-card{background:var(--offwhite);border:1px solid var(--slate);border-radius:var(--radius);padding:16px;}\n .ro-wrap .schedule-card .interval{font-size:22px !important;font-family:'DM Serif Display',serif;color:var(--sky);font-weight:400;margin-bottom:4px;}\n .ro-wrap .schedule-card h4{font-size:18px !important;font-weight:600;color:var(--deep);margin-bottom:4px;}\n .ro-wrap .schedule-card p{font-size:15px !important;color:var(--muted);margin:0;line-height:1.45;}\n .ro-wrap .benefits-strip{display:flex;flex-wrap:wrap;background:var(--deep);color:var(--white);border-radius:0 0 var(--radius) var(--radius);overflow:hidden;}\n .ro-wrap .benefit-item{flex:1 1 200px;padding:24px 22px;border-right:1px solid rgba(255,255,255,.1);}\n .ro-wrap .benefit-item:last-child{border-right:none;}\n .ro-wrap .bi-icon{font-size:22px !important;margin-bottom:10px;}\n .ro-wrap .benefit-item h4{font-size:15px !important;font-weight:600;color:var(--aqua);margin-bottom:5px;text-transform:uppercase;letter-spacing:.05em;}\n .ro-wrap .benefit-item p{font-size:15px !important;color:rgba(255,255,255,.65);line-height:1.55;margin:0;}\n .ro-wrap .faucet-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(min(200px,100%),1fr));gap:16px;margin-top:4px;}\n .ro-wrap .faucet-card{border:2px solid var(--slate);border-radius:var(--radius);padding:18px;text-align:center;}\n .ro-wrap .faucet-icon{font-size:28px !important;margin-bottom:10px;}\n .ro-wrap .faucet-card h4{font-size:18px !important;font-weight:600;color:var(--deep);margin-bottom:6px;}\n .ro-wrap .faucet-card p{font-size:15px !important;color:var(--muted);line-height:1.5;margin:0;}\n .ro-wrap .spec-cards{display:grid;grid-template-columns:repeat(auto-fill,minmax(min(180px,100%),1fr));gap:12px;margin-top:4px;}\n .ro-wrap .spec-card{background:var(--offwhite);border:1px solid var(--slate);border-radius:var(--radius);padding:16px;}\n .ro-wrap .spec-card .sc-label{font-size:13px !important;font-weight:700;letter-spacing:.08em;color:var(--sky);text-transform:uppercase;margin-bottom:4px;}\n .ro-wrap .spec-card .sc-value{font-size:20px !important;font-weight:600;color:var(--deep);margin-bottom:4px;}\n .ro-wrap .spec-card .sc-note{font-size:15px !important;color:var(--muted);}\n @media(max-width:640px){\n .ro-wrap .ro-hero{padding:36px 24px 32px;}\n .ro-wrap .ro-section{padding:28px 20px;}\n .ro-wrap .ro-feature-grid,.ro-wrap .faucet-grid,.ro-wrap .filter-schedule,.ro-wrap .spec-cards{grid-template-columns:1fr;}\n .ro-wrap .benefits-strip{flex-direction:column;}\n .ro-wrap .benefit-item{border-right:none;border-bottom:1px solid rgba(255,255,255,.1);}\n }\n \/* ── Nuclear override — force all text inside ro-wrap to be readable ── *\/\n .ro-wrap p,\n .ro-wrap li,\n .ro-wrap td,\n .ro-wrap th,\n .ro-wrap .ro-section \u003e p {\n font-size: 18px !important;\n line-height: 1.6 !important;\n }\n .ro-wrap .ro-section \u003e p,\n .ro-wrap .ro-callout p,\n .ro-wrap .stage-body p,\n .ro-wrap .ro-feature-card p,\n .ro-wrap .schedule-card p,\n .ro-wrap .faucet-card p,\n .ro-wrap .spec-card .sc-note,\n .ro-wrap .pro-tip p {\n font-size: 18px !important;\n line-height: 1.6 !important;\n }\n .ro-wrap h2 { font-size: clamp(26px,4vw,40px) !important; line-height:1.15 !important; }\n .ro-wrap h3 { font-size: 20px !important; line-height:1.3 !important; }\n .ro-wrap h4 { font-size: 18px !important; line-height:1.3 !important; }\n .ro-wrap .ro-label,\n .ro-wrap .stage-tag,\n .ro-wrap .sc-label { font-size: 14px !important; }\n .ro-wrap .ro-title { font-size: 24px !important; }\n .ro-wrap .interval { font-size: 22px !important; }\n .ro-wrap .stage-num { font-size: 16px !important; }\n .ro-wrap .ro-eyebrow { font-size: 14px !important; }\n .ro-wrap .ro-badge { font-size: 15px !important; }\n\u003c\/style\u003e\n\u003cdiv class=\"ro-wrap\"\u003e\n \u003cdiv class=\"ro-hero\"\u003e\n \u003cdiv class=\"ro-eyebrow\"\u003eWatts Premier • Kwik-Change Carbon Block\u003c\/div\u003e\n \u003ch2\u003eWatts \u003cem\u003eWQCCC Kwik-Change RO Pre-Carbon Block Filter\u003c\/em\u003e\n\u003c\/h2\u003e\n \u003cp class=\"ro-tagline\"\u003eQuick-twist replacement carbon block prefilter for WQC4 reverse osmosis systems. Tool-free installation, dual o-ring seal, 10 micron chlorine removal.\u003c\/p\u003e\n \u003cdiv class=\"ro-badges\"\u003e\n \u003cspan class=\"ro-badge\"\u003e10 Micron Nominal\u003c\/span\u003e\n \u003cspan class=\"ro-badge\"\u003e1\/4 Turn Installation\u003c\/span\u003e\n \u003cspan class=\"ro-badge\"\u003eDual O-Ring Seal\u003c\/span\u003e\n \u003c\/div\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"ro-section\"\u003e\n \u003cdiv class=\"ro-label\"\u003eWHY IT WORKS\u003c\/div\u003e\n \u003ch3 class=\"ro-title\"\u003eEngineered for the Kwik-Change platform\u003c\/h3\u003e\n \u003cdiv class=\"ro-feature-grid\"\u003e\n \u003cdiv class=\"ro-feature-card\"\u003e\n \u003cdiv class=\"ro-feat-icon\"\u003e\u003cspan\u003e🔒\u003c\/span\u003e\u003c\/div\u003e\n \u003ch3\u003eInternal Shutoff Valves\u003c\/h3\u003e\n \u003cp\u003eFlow stops automatically when you remove the cartridge. No mess, no water spillage during filter changes.\u003c\/p\u003e\n \u003c\/div\u003e\n \u003cdiv class=\"ro-feature-card\"\u003e\n \u003cdiv class=\"ro-feat-icon\"\u003e\u003cspan\u003e🔄\u003c\/span\u003e\u003c\/div\u003e\n \u003ch3\u003e1\/4 Twist Installation\u003c\/h3\u003e\n \u003cp\u003eQuarter-turn bayonet design locks into place without tools. Change filters in seconds, not minutes.\u003c\/p\u003e\n \u003c\/div\u003e\n \u003cdiv class=\"ro-feature-card\"\u003e\n \u003cdiv class=\"ro-feat-icon\"\u003e\u003cspan\u003e🛡️\u003c\/span\u003e\u003c\/div\u003e\n \u003ch3\u003eDual O-Ring Seal\u003c\/h3\u003e\n \u003cp\u003eDouble o-ring design eliminates leaks at connection points. Reliable seal every time you replace the filter.\u003c\/p\u003e\n \u003c\/div\u003e\n \u003cdiv class=\"ro-feature-card\"\u003e\n \u003cdiv class=\"ro-feat-icon\"\u003e\u003cspan\u003e💧\u003c\/span\u003e\u003c\/div\u003e\n \u003ch3\u003eCarbon Block Filtration\u003c\/h3\u003e\n \u003cp\u003e10 micron carbon block removes chlorine, taste, and odor before water reaches the RO membrane. Extends membrane life.\u003c\/p\u003e\n \u003c\/div\u003e\n \u003c\/div\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"ro-section\"\u003e\n \u003cdiv class=\"ro-label\"\u003eCOMPATIBILITY\u003c\/div\u003e\n \u003ch3 class=\"ro-title\"\u003eFits Watts WQC4 reverse osmosis systems\u003c\/h3\u003e\n \u003cp\u003eDesigned for Watts WQC4 series RO systems with Kwik-Change filter housings. Available in 10\", 11\", and 13\" sizes (WQCCC10, WQCCC11, WQCCC13). Also compatible with PWKCGAC13 and PWKCCB13 filters. Not compatible with older \"Watts Premier\" branded systems that use different filter housing designs.\u003c\/p\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"ro-section\"\u003e\n \u003cdiv class=\"ro-label\"\u003eMAINTENANCE\u003c\/div\u003e\n \u003ch3 class=\"ro-title\"\u003eReplacement schedule\u003c\/h3\u003e\n \u003cdiv class=\"filter-schedule\"\u003e\n \u003cdiv class=\"schedule-card\"\u003e\n \u003cdiv class=\"interval\"\u003eEvery 6 Months\u003c\/div\u003e\n \u003ch4\u003eCarbon Block Prefilter\u003c\/h4\u003e\n \u003cp\u003eReplace the WQCCC carbon block filter twice per year or sooner if you notice taste or odor breakthrough. High chlorine levels may require more frequent changes.\u003c\/p\u003e\n \u003c\/div\u003e\n \u003cdiv class=\"schedule-card\"\u003e\n \u003cdiv class=\"interval\"\u003eDuring Replacement\u003c\/div\u003e\n \u003ch4\u003eInspect O-Rings\u003c\/h4\u003e\n \u003cp\u003eCheck both o-ring seals for cracks or damage each time you change the filter. Replace if worn to maintain leak-free operation.\u003c\/p\u003e\n \u003c\/div\u003e\n \u003c\/div\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"benefits-strip\"\u003e\n \u003cdiv class=\"benefit-item\"\u003e\n \u003cdiv class=\"bi-icon\"\u003e🚰\u003c\/div\u003e\n \u003ch4\u003ePre-RO Protection\u003c\/h4\u003e\n \u003cp\u003eRemoves chlorine before membrane contact, extending RO membrane lifespan and performance\u003c\/p\u003e\n \u003c\/div\u003e\n \u003cdiv class=\"benefit-item\"\u003e\n \u003cdiv class=\"bi-icon\"\u003e⚙️\u003c\/div\u003e\n \u003ch4\u003eTool-Free Changes\u003c\/h4\u003e\n \u003cp\u003eQuarter-turn design means you can swap filters without wrenches or shutting down the system\u003c\/p\u003e\n \u003c\/div\u003e\n \u003cdiv class=\"benefit-item\"\u003e\n \u003cdiv class=\"bi-icon\"\u003e📏\u003c\/div\u003e\n \u003ch4\u003eMultiple Sizes\u003c\/h4\u003e\n \u003cp\u003eAvailable in 10\", 11\", and 13\" cartridge lengths to match your WQC4 system configuration\u003c\/p\u003e\n \u003c\/div\u003e\n \u003c\/div\u003e\n\u003c\/div\u003e","brand":"Watts","offers":[{"title":"11\"","offer_id":35473752490146,"sku":"WQCCC11","price":44.13,"currency_code":"USD","in_stock":true},{"title":"13\"","offer_id":35473752522914,"sku":"WQCCC13","price":45.82,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0446\/7677\/6098\/files\/product-5537316602018-padded.jpg?v=1791927323"},{"product_id":"watts-premier-105321-11-uf3-uf-membrane-filter-pure","title":"Watts Premier (105321) 11\" UF3 UF Membrane Filter Pure","description":"\n\u003clink href=\"https:\/\/fonts.googleapis.com\/css2?family=DM+Serif+Display:ital@0;1\u0026amp;family=DM+Sans:wght@300;400;500;600\u0026amp;display=swap\" rel=\"stylesheet\"\u003e\n\u003cstyle\u003e\n .ro-wrap {\n --deep:#0a1628;--ocean:#0f3460;--blue:#1565c0;--sky:#2196f3;--aqua:#4dd0e1;\n --white:#ffffff;--offwhite:#f2f7fc;--slate:#dce8f5;--text:#0d1f38;--muted:#4a6280;\n --gold:#f59e0b;--radius:12px;\n font-family:'DM Sans',sans-serif;color:var(--text);line-height:1.6;-webkit-font-smoothing:antialiased;overflow-wrap:break-word;word-break:break-word;min-width:0;\n }\n .ro-wrap .ro-hero{background:linear-gradient(135deg,var(--deep) 0%,var(--ocean) 50%,#1a5276 100%);color:var(--white);padding:52px 40px 44px;position:relative;overflow:hidden;border-radius:var(--radius) var(--radius) 0 0;}\n .ro-wrap .ro-hero::before{content:'';position:absolute;inset:0;background:radial-gradient(ellipse 70% 55% at 95% 45%,rgba(77,208,225,.15) 0%,transparent 65%),radial-gradient(ellipse 40% 40% at 5% 80%,rgba(255,255,255,.05) 0%,transparent 60%);pointer-events:none;}\n .ro-wrap .ro-eyebrow{font-size:13px !important;font-weight:600;letter-spacing:.18em;text-transform:uppercase;color:var(--aqua);margin-bottom:12px;}\n .ro-wrap .ro-hero h2{font-family:'DM Serif Display',serif;font-size:clamp(26px,4vw,40px) !important;line-height:1.15;font-weight:400;margin-bottom:16px;color:var(--white);}\n .ro-wrap .ro-hero h2 em{font-style:italic;color:var(--aqua);}\n .ro-wrap .ro-tagline{font-size:18px !important;color:rgba(255,255,255,.75);font-weight:300;margin-bottom:28px;}\n .ro-wrap .ro-badges{display:flex;flex-wrap:wrap;gap:10px;}\n .ro-wrap .ro-badge{display:inline-flex;align-items:center;gap:6px;background:rgba(255,255,255,.12);border:1px solid rgba(255,255,255,.2);color:var(--white);font-size:15px !important;font-weight:500;padding:6px 14px;border-radius:40px;backdrop-filter:blur(6px);}\n .ro-wrap .ro-callout{background:var(--offwhite);border-left:4px solid var(--sky);padding:20px 24px;}\n .ro-wrap .ro-callout p{font-size:18px !important;color:var(--text);line-height:1.7;margin:0;}\n .ro-wrap .ro-callout strong{color:var(--ocean);}\n .ro-wrap .ro-section{padding:36px 40px;border-bottom:1px solid var(--slate);}\n .ro-wrap .ro-label{font-size:13px !important;font-weight:700;letter-spacing:.2em;text-transform:uppercase;color:var(--sky);margin-bottom:8px;}\n .ro-wrap .ro-title{font-family:'DM Serif Display',serif;font-size:24px !important;color:var(--deep);margin-bottom:20px;font-weight:400;}\n .ro-wrap .stage-pipeline{display:flex;flex-direction:column;gap:0;margin-top:4px;}\n .ro-wrap .stage-row{display:flex;flex-direction:row;gap:12px;position:relative;min-width:0;align-items:flex-start;width:100%;box-sizing:border-box;}\n .ro-wrap .stage-row:not(:last-child) .stage-line{position:absolute;left:17px;top:40px;bottom:0;width:2px;background:var(--slate);}\n .ro-wrap .stage-num{width:36px;height:36px;min-width:36px;max-width:36px;border-radius:50%;background:linear-gradient(135deg,var(--ocean),var(--sky));color:white;display:flex;align-items:center;justify-content:center;font-size:16px !important;font-weight:700;flex:0 0 36px;position:relative;z-index:1;margin-top:16px;}\n .ro-wrap .stage-body{background:var(--offwhite);border:1px solid var(--slate);border-radius:var(--radius);padding:16px 18px;margin-bottom:12px;flex:1 1 0;min-width:0;overflow:hidden;overflow-wrap:break-word;word-break:break-word;box-sizing:border-box;}\n .ro-wrap .stage-body h3{font-size:20px !important;font-weight:600;color:var(--deep);margin-bottom:8px;margin-top:6px;}\n .ro-wrap .stage-tag{display:block;font-size:12px !important;font-weight:700;letter-spacing:.04em;text-transform:uppercase;background:var(--slate);color:var(--ocean);padding:3px 8px;border-radius:4px;margin-bottom:8px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;max-width:100%;line-height:1.5 !important;box-sizing:border-box;}\n .ro-wrap .stage-body p{font-size:18px !important;color:var(--muted);line-height:1.6;margin:0;display:block;}\n .ro-wrap .stage-body .stage-part{font-size:15px !important;color:var(--sky);margin-top:6px;font-weight:500;}\n .ro-wrap .specs-table{width:100%;border-collapse:collapse;font-size:18px !important;}\n .ro-wrap .specs-table tr{border-bottom:1px solid var(--slate);}\n .ro-wrap .specs-table tr:last-child{border-bottom:none;}\n .ro-wrap .specs-table td{padding:11px 6px;vertical-align:top;}\n .ro-wrap .specs-table td:first-child{font-weight:500;color:var(--deep);width:44%;padding-right:16px;}\n .ro-wrap .specs-table td:last-child{color:var(--muted);}\n .ro-wrap .specs-table tr:hover td{background:var(--offwhite);}\n .ro-wrap .conditions-table{width:100%;border-collapse:collapse;font-size:18px !important;margin-top:4px;}\n .ro-wrap .conditions-table th{background:var(--deep);color:var(--white);font-size:15px !important;font-weight:600;letter-spacing:.06em;text-transform:uppercase;padding:10px 12px;text-align:left;}\n .ro-wrap .conditions-table th:first-child{border-radius:var(--radius) 0 0 0;}\n .ro-wrap .conditions-table th:last-child{border-radius:0 var(--radius) 0 0;}\n .ro-wrap .conditions-table td{padding:10px 12px;border-bottom:1px solid var(--slate);color:var(--text);}\n .ro-wrap .conditions-table tr:nth-child(even) td{background:var(--offwhite);}\n .ro-wrap .ro-feature-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(min(220px,100%),1fr));gap:16px;margin-top:4px;}\n .ro-wrap .ro-feature-card{background:var(--offwhite);border:1px solid var(--slate);border-radius:var(--radius);padding:20px 18px;}\n .ro-wrap .ro-feat-icon{width:40px;height:40px;background:linear-gradient(135deg,var(--ocean),var(--sky));border-radius:10px;display:flex;align-items:center;justify-content:center;margin-bottom:12px;}\n .ro-wrap .ro-feature-card h3{font-size:20px !important;font-weight:600;color:var(--deep);margin-bottom:6px;}\n .ro-wrap .ro-feature-card p{font-size:18px !important;color:var(--muted);line-height:1.55;margin:0;}\n .ro-wrap .pro-tip{display:block;background:#fffbeb;border:1px solid #f5d87a;border-radius:var(--radius);padding:18px 20px;margin-top:20px;box-sizing:border-box;width:100% !important;}\n .ro-wrap .pro-tip-icon{font-size:22px !important;display:inline;margin-right:8px;line-height:1.6 !important;}\n .ro-wrap .pro-tip p{font-size:18px !important;color:#5a4500;line-height:1.6 !important;margin:0;display:block;width:100%;}\n .ro-wrap .pro-tip strong{color:#3d2e00;}\n .ro-wrap .install-steps{counter-reset:step;list-style:none;padding:0;margin:4px 0 0;display:flex;flex-direction:column;gap:14px;}\n .ro-wrap .install-steps li{counter-increment:step;display:flex;align-items:flex-start;gap:14px;font-size:18px !important;color:var(--text);}\n .ro-wrap .install-steps li::before{content:counter(step);display:flex;align-items:center;justify-content:center;width:28px;height:28px;border-radius:50%;background:var(--ocean);color:white;font-size:15px !important;font-weight:700;flex-shrink:0;margin-top:1px;}\n .ro-wrap .filter-schedule{display:grid;grid-template-columns:repeat(auto-fill,minmax(min(180px,100%),1fr));gap:12px;margin-top:4px;}\n .ro-wrap .schedule-card{background:var(--offwhite);border:1px solid var(--slate);border-radius:var(--radius);padding:16px;}\n .ro-wrap .schedule-card .interval{font-size:22px !important;font-family:'DM Serif Display',serif;color:var(--sky);font-weight:400;margin-bottom:4px;}\n .ro-wrap .schedule-card h4{font-size:18px !important;font-weight:600;color:var(--deep);margin-bottom:4px;}\n .ro-wrap .schedule-card p{font-size:15px !important;color:var(--muted);margin:0;line-height:1.45;}\n .ro-wrap .benefits-strip{display:flex;flex-wrap:wrap;background:var(--deep);color:var(--white);border-radius:0 0 var(--radius) var(--radius);overflow:hidden;}\n .ro-wrap .benefit-item{flex:1 1 200px;padding:24px 22px;border-right:1px solid rgba(255,255,255,.1);}\n .ro-wrap .benefit-item:last-child{border-right:none;}\n .ro-wrap .bi-icon{font-size:22px !important;margin-bottom:10px;}\n .ro-wrap .benefit-item h4{font-size:15px !important;font-weight:600;color:var(--aqua);margin-bottom:5px;text-transform:uppercase;letter-spacing:.05em;}\n .ro-wrap .benefit-item p{font-size:15px !important;color:rgba(255,255,255,.65);line-height:1.55;margin:0;}\n .ro-wrap .faucet-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(min(200px,100%),1fr));gap:16px;margin-top:4px;}\n .ro-wrap .faucet-card{border:2px solid var(--slate);border-radius:var(--radius);padding:18px;text-align:center;}\n .ro-wrap .faucet-icon{font-size:28px !important;margin-bottom:10px;}\n .ro-wrap .faucet-card h4{font-size:18px !important;font-weight:600;color:var(--deep);margin-bottom:6px;}\n .ro-wrap .faucet-card p{font-size:15px !important;color:var(--muted);line-height:1.5;margin:0;}\n .ro-wrap .spec-cards{display:grid;grid-template-columns:repeat(auto-fill,minmax(min(180px,100%),1fr));gap:12px;margin-top:4px;}\n .ro-wrap .spec-card{background:var(--offwhite);border:1px solid var(--slate);border-radius:var(--radius);padding:16px;}\n .ro-wrap .spec-card .sc-label{font-size:13px !important;font-weight:700;letter-spacing:.08em;color:var(--sky);text-transform:uppercase;margin-bottom:4px;}\n .ro-wrap .spec-card .sc-value{font-size:20px !important;font-weight:600;color:var(--deep);margin-bottom:4px;}\n .ro-wrap .spec-card .sc-note{font-size:15px !important;color:var(--muted);}\n @media(max-width:640px){\n .ro-wrap .ro-hero{padding:36px 24px 32px;}\n .ro-wrap .ro-section{padding:28px 20px;}\n .ro-wrap .ro-feature-grid,.ro-wrap .faucet-grid,.ro-wrap .filter-schedule,.ro-wrap .spec-cards{grid-template-columns:1fr;}\n .ro-wrap .benefits-strip{flex-direction:column;}\n .ro-wrap .benefit-item{border-right:none;border-bottom:1px solid rgba(255,255,255,.1);}\n }\n \/* ── Nuclear override — force all text inside ro-wrap to be readable ── *\/\n .ro-wrap p,\n .ro-wrap li,\n .ro-wrap td,\n .ro-wrap th,\n .ro-wrap .ro-section \u003e p {\n font-size: 18px !important;\n line-height: 1.6 !important;\n }\n .ro-wrap .ro-section \u003e p,\n .ro-wrap .ro-callout p,\n .ro-wrap .stage-body p,\n .ro-wrap .ro-feature-card p,\n .ro-wrap .schedule-card p,\n .ro-wrap .faucet-card p,\n .ro-wrap .spec-card .sc-note,\n .ro-wrap .pro-tip p {\n font-size: 18px !important;\n line-height: 1.6 !important;\n }\n .ro-wrap h2 { font-size: clamp(26px,4vw,40px) !important; line-height:1.15 !important; }\n .ro-wrap h3 { font-size: 20px !important; line-height:1.3 !important; }\n .ro-wrap h4 { font-size: 18px !important; line-height:1.3 !important; }\n .ro-wrap .ro-label,\n .ro-wrap .stage-tag,\n .ro-wrap .sc-label { font-size: 14px !important; }\n .ro-wrap .ro-title { font-size: 24px !important; }\n .ro-wrap .interval { font-size: 22px !important; }\n .ro-wrap .stage-num { font-size: 16px !important; }\n .ro-wrap .ro-eyebrow { font-size: 14px !important; }\n .ro-wrap .ro-badge { font-size: 15px !important; }\n\u003c\/style\u003e\n\u003cdiv class=\"ro-wrap\"\u003e\n \u003cdiv class=\"ro-hero\"\u003e\n \u003cdiv class=\"ro-eyebrow\"\u003eWatts Premier\u003c\/div\u003e\n \u003ch2\u003e11\" UF3 Ultrafiltration Membrane Filter\u003c\/h2\u003e\n \u003cdiv class=\"ro-tagline\"\u003eHollow fiber technology for chemical-free filtration down to 0.2 microns\u003c\/div\u003e\n \u003cdiv class=\"ro-badges\"\u003e\n \u003cspan class=\"ro-badge\"\u003eHollow Fiber UF\u003c\/span\u003e\n \u003cspan class=\"ro-badge\"\u003e0.2 Micron\u003c\/span\u003e\n \u003cspan class=\"ro-badge\"\u003eModel 105321\u003c\/span\u003e\n \u003cspan class=\"ro-badge\"\u003e11 Inch\u003c\/span\u003e\n \u003c\/div\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"ro-callout\"\u003e\n \u003cp\u003eThe Watts Premier 105321 uses ultrafiltration hollow fiber membrane technology to remove suspended particles, bacteria, and high molecular weight contaminants without removing beneficial minerals. This 11-inch UF3 replacement cartridge operates on standard household water pressure and filters down to 0.2 microns through its semi-permeable membrane.\u003c\/p\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"ro-section\"\u003e\n \u003cdiv class=\"ro-label\"\u003eHOW IT WORKS\u003c\/div\u003e\n \u003ch3 class=\"ro-title\"\u003eUltrafiltration Membrane Process\u003c\/h3\u003e\n \u003cdiv class=\"stage-pipeline\"\u003e\n \u003cdiv class=\"stage-row\"\u003e\n \u003cdiv class=\"stage-line\"\u003e\u003c\/div\u003e\n \u003cdiv class=\"stage-num\"\u003e1\u003c\/div\u003e\n \u003cdiv class=\"stage-body\"\u003e\n \u003cspan class=\"stage-tag\"\u003eINLET\u003c\/span\u003e\n \u003ch3\u003eWater Entry Under Pressure\u003c\/h3\u003e\n \u003cp\u003eStandard household water pressure forces water into the hollow fiber bundle, beginning the ultrafiltration process without pumps or electricity.\u003c\/p\u003e\n \u003c\/div\u003e\n \u003c\/div\u003e\n \u003cdiv class=\"stage-row\"\u003e\n \u003cdiv class=\"stage-line\"\u003e\u003c\/div\u003e\n \u003cdiv class=\"stage-num\"\u003e2\u003c\/div\u003e\n \u003cdiv class=\"stage-body\"\u003e\n \u003cspan class=\"stage-tag\"\u003eMEMBRANE\u003c\/span\u003e\n \u003ch3\u003eSemi-Permeable Filtration\u003c\/h3\u003e\n \u003cp\u003eWater passes through the 0.2 micron hollow fiber membrane. Suspended particles, sediment, bacteria, and materials of high molecular weight are physically blocked while water and dissolved minerals pass through.\u003c\/p\u003e\n \u003c\/div\u003e\n \u003c\/div\u003e\n \u003cdiv class=\"stage-row\"\u003e\n \u003cdiv class=\"stage-line\"\u003e\u003c\/div\u003e\n \u003cdiv class=\"stage-num\"\u003e3\u003c\/div\u003e\n \u003cdiv class=\"stage-body\"\u003e\n \u003cspan class=\"stage-tag\"\u003eOUTLET\u003c\/span\u003e\n \u003ch3\u003eClean Water Delivery\u003c\/h3\u003e\n \u003cp\u003eFiltered water exits the cartridge with beneficial minerals intact, providing chemical-free purification that retains the natural taste profile of your source water.\u003c\/p\u003e\n \u003c\/div\u003e\n \u003c\/div\u003e\n \u003c\/div\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"ro-section\"\u003e\n \u003cdiv class=\"ro-label\"\u003eCOMPATIBILITY\u003c\/div\u003e\n \u003ch3 class=\"ro-title\"\u003eSystem Requirements\u003c\/h3\u003e\n \u003cp\u003eThis Watts Premier 105321 UF3 membrane filter is designed exclusively for use with the Premier FILTER PURE (UF3) ultrafiltration system. It is not compatible with reverse osmosis systems or standard cartridge housings. The 11-inch form factor and proprietary hollow fiber bundle configuration require the specific housing and inlet\/outlet connections provided in the UF3 system.\u003c\/p\u003e\n \u003c\/div\u003e\n\u003c\/div\u003e","brand":"Watts","offers":[{"title":"Default Title","offer_id":35474002673826,"sku":"F105321","price":90.24,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0446\/7677\/6098\/files\/watts-premier-105321-11-uf3-uf-membrane-filter-pure-674414.jpg?v=1762461313"},{"product_id":"watts-premier-wp-plus-kit-ro-pure-push-button-replacement-filter-kit","title":"Watts Premier WP-PLUS-KIT RO-Pure Push Button Replacement Filter Kit","description":"\n\u003clink href=\"https:\/\/fonts.googleapis.com\/css2?family=DM+Serif+Display:ital@0;1\u0026amp;family=DM+Sans:wght@300;400;500;600\u0026amp;display=swap\" rel=\"stylesheet\"\u003e\n\u003cstyle\u003e\n .ro-wrap {\n --deep:#0a1628;--ocean:#0f3460;--blue:#1565c0;--sky:#2196f3;--aqua:#4dd0e1;\n --white:#ffffff;--offwhite:#f2f7fc;--slate:#dce8f5;--text:#0d1f38;--muted:#4a6280;\n --gold:#f59e0b;--radius:12px;\n font-family:'DM Sans',sans-serif;color:var(--text);line-height:1.6;-webkit-font-smoothing:antialiased;overflow-wrap:break-word;word-break:break-word;min-width:0;\n }\n .ro-wrap .ro-hero{background:linear-gradient(135deg,var(--deep) 0%,var(--ocean) 50%,#1a5276 100%);color:var(--white);padding:52px 40px 44px;position:relative;overflow:hidden;border-radius:var(--radius) var(--radius) 0 0;}\n .ro-wrap .ro-hero::before{content:'';position:absolute;inset:0;background:radial-gradient(ellipse 70% 55% at 95% 45%,rgba(77,208,225,.15) 0%,transparent 65%),radial-gradient(ellipse 40% 40% at 5% 80%,rgba(255,255,255,.05) 0%,transparent 60%);pointer-events:none;}\n .ro-wrap .ro-eyebrow{font-size:13px !important;font-weight:600;letter-spacing:.18em;text-transform:uppercase;color:var(--aqua);margin-bottom:12px;}\n .ro-wrap .ro-hero h2{font-family:'DM Serif Display',serif;font-size:clamp(26px,4vw,40px) !important;line-height:1.15;font-weight:400;margin-bottom:16px;color:var(--white);}\n .ro-wrap .ro-hero h2 em{font-style:italic;color:var(--aqua);}\n .ro-wrap .ro-tagline{font-size:18px !important;color:rgba(255,255,255,.75);font-weight:300;margin-bottom:28px;}\n .ro-wrap .ro-badges{display:flex;flex-wrap:wrap;gap:10px;}\n .ro-wrap .ro-badge{display:inline-flex;align-items:center;gap:6px;background:rgba(255,255,255,.12);border:1px solid rgba(255,255,255,.2);color:var(--white);font-size:15px !important;font-weight:500;padding:6px 14px;border-radius:40px;backdrop-filter:blur(6px);}\n .ro-wrap .ro-callout{background:var(--offwhite);border-left:4px solid var(--sky);padding:20px 24px;}\n .ro-wrap .ro-callout p{font-size:18px !important;color:var(--text);line-height:1.7;margin:0;}\n .ro-wrap .ro-callout strong{color:var(--ocean);}\n .ro-wrap .ro-section{padding:36px 40px;border-bottom:1px solid var(--slate);}\n .ro-wrap .ro-label{font-size:13px !important;font-weight:700;letter-spacing:.2em;text-transform:uppercase;color:var(--sky);margin-bottom:8px;}\n .ro-wrap .ro-title{font-family:'DM Serif Display',serif;font-size:24px !important;color:var(--deep);margin-bottom:20px;font-weight:400;}\n .ro-wrap .stage-pipeline{display:flex;flex-direction:column;gap:0;margin-top:4px;}\n .ro-wrap .stage-row{display:flex;flex-direction:row;gap:12px;position:relative;min-width:0;align-items:flex-start;width:100%;box-sizing:border-box;}\n .ro-wrap .stage-row:not(:last-child) .stage-line{position:absolute;left:17px;top:40px;bottom:0;width:2px;background:var(--slate);}\n .ro-wrap .stage-num{width:36px;height:36px;min-width:36px;max-width:36px;border-radius:50%;background:linear-gradient(135deg,var(--ocean),var(--sky));color:white;display:flex;align-items:center;justify-content:center;font-size:16px !important;font-weight:700;flex:0 0 36px;position:relative;z-index:1;margin-top:16px;}\n .ro-wrap .stage-body{background:var(--offwhite);border:1px solid var(--slate);border-radius:var(--radius);padding:16px 18px;margin-bottom:12px;flex:1 1 0;min-width:0;overflow:hidden;overflow-wrap:break-word;word-break:break-word;box-sizing:border-box;}\n .ro-wrap .stage-body h3{font-size:20px !important;font-weight:600;color:var(--deep);margin-bottom:8px;margin-top:6px;}\n .ro-wrap .stage-tag{display:block;font-size:12px !important;font-weight:700;letter-spacing:.04em;text-transform:uppercase;background:var(--slate);color:var(--ocean);padding:3px 8px;border-radius:4px;margin-bottom:8px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;max-width:100%;line-height:1.5 !important;box-sizing:border-box;}\n .ro-wrap .stage-body p{font-size:18px !important;color:var(--muted);line-height:1.6;margin:0;display:block;}\n .ro-wrap .stage-body .stage-part{font-size:15px !important;color:var(--sky);margin-top:6px;font-weight:500;}\n .ro-wrap .specs-table{width:100%;border-collapse:collapse;font-size:18px !important;}\n .ro-wrap .specs-table tr{border-bottom:1px solid var(--slate);}\n .ro-wrap .specs-table tr:last-child{border-bottom:none;}\n .ro-wrap .specs-table td{padding:11px 6px;vertical-align:top;}\n .ro-wrap .specs-table td:first-child{font-weight:500;color:var(--deep);width:44%;padding-right:16px;}\n .ro-wrap .specs-table td:last-child{color:var(--muted);}\n .ro-wrap .specs-table tr:hover td{background:var(--offwhite);}\n .ro-wrap .conditions-table{width:100%;border-collapse:collapse;font-size:18px !important;margin-top:4px;}\n .ro-wrap .conditions-table th{background:var(--deep);color:var(--white);font-size:15px !important;font-weight:600;letter-spacing:.06em;text-transform:uppercase;padding:10px 12px;text-align:left;}\n .ro-wrap .conditions-table th:first-child{border-radius:var(--radius) 0 0 0;}\n .ro-wrap .conditions-table th:last-child{border-radius:0 var(--radius) 0 0;}\n .ro-wrap .conditions-table td{padding:10px 12px;border-bottom:1px solid var(--slate);color:var(--text);}\n .ro-wrap .conditions-table tr:nth-child(even) td{background:var(--offwhite);}\n .ro-wrap .ro-feature-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(min(220px,100%),1fr));gap:16px;margin-top:4px;}\n .ro-wrap .ro-feature-card{background:var(--offwhite);border:1px solid var(--slate);border-radius:var(--radius);padding:20px 18px;}\n .ro-wrap .ro-feat-icon{width:40px;height:40px;background:linear-gradient(135deg,var(--ocean),var(--sky));border-radius:10px;display:flex;align-items:center;justify-content:center;margin-bottom:12px;}\n .ro-wrap .ro-feature-card h3{font-size:20px !important;font-weight:600;color:var(--deep);margin-bottom:6px;}\n .ro-wrap .ro-feature-card p{font-size:18px !important;color:var(--muted);line-height:1.55;margin:0;}\n .ro-wrap .pro-tip{display:block;background:#fffbeb;border:1px solid #f5d87a;border-radius:var(--radius);padding:18px 20px;margin-top:20px;box-sizing:border-box;width:100% !important;}\n .ro-wrap .pro-tip-icon{font-size:22px !important;display:inline;margin-right:8px;line-height:1.6 !important;}\n .ro-wrap .pro-tip p{font-size:18px !important;color:#5a4500;line-height:1.6 !important;margin:0;display:block;width:100%;}\n .ro-wrap .pro-tip strong{color:#3d2e00;}\n .ro-wrap .install-steps{counter-reset:step;list-style:none;padding:0;margin:4px 0 0;display:flex;flex-direction:column;gap:14px;}\n .ro-wrap .install-steps li{counter-increment:step;display:flex;align-items:flex-start;gap:14px;font-size:18px !important;color:var(--text);}\n .ro-wrap .install-steps li::before{content:counter(step);display:flex;align-items:center;justify-content:center;width:28px;height:28px;border-radius:50%;background:var(--ocean);color:white;font-size:15px !important;font-weight:700;flex-shrink:0;margin-top:1px;}\n .ro-wrap .filter-schedule{display:grid;grid-template-columns:repeat(auto-fill,minmax(min(180px,100%),1fr));gap:12px;margin-top:4px;}\n .ro-wrap .schedule-card{background:var(--offwhite);border:1px solid var(--slate);border-radius:var(--radius);padding:16px;}\n .ro-wrap .schedule-card .interval{font-size:22px !important;font-family:'DM Serif Display',serif;color:var(--sky);font-weight:400;margin-bottom:4px;}\n .ro-wrap .schedule-card h4{font-size:18px !important;font-weight:600;color:var(--deep);margin-bottom:4px;}\n .ro-wrap .schedule-card p{font-size:15px !important;color:var(--muted);margin:0;line-height:1.45;}\n .ro-wrap .benefits-strip{display:flex;flex-wrap:wrap;background:var(--deep);color:var(--white);border-radius:0 0 var(--radius) var(--radius);overflow:hidden;}\n .ro-wrap .benefit-item{flex:1 1 200px;padding:24px 22px;border-right:1px solid rgba(255,255,255,.1);}\n .ro-wrap .benefit-item:last-child{border-right:none;}\n .ro-wrap .bi-icon{font-size:22px !important;margin-bottom:10px;}\n .ro-wrap .benefit-item h4{font-size:15px !important;font-weight:600;color:var(--aqua);margin-bottom:5px;text-transform:uppercase;letter-spacing:.05em;}\n .ro-wrap .benefit-item p{font-size:15px !important;color:rgba(255,255,255,.65);line-height:1.55;margin:0;}\n .ro-wrap .faucet-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(min(200px,100%),1fr));gap:16px;margin-top:4px;}\n .ro-wrap .faucet-card{border:2px solid var(--slate);border-radius:var(--radius);padding:18px;text-align:center;}\n .ro-wrap .faucet-icon{font-size:28px !important;margin-bottom:10px;}\n .ro-wrap .faucet-card h4{font-size:18px !important;font-weight:600;color:var(--deep);margin-bottom:6px;}\n .ro-wrap .faucet-card p{font-size:15px !important;color:var(--muted);line-height:1.5;margin:0;}\n .ro-wrap .spec-cards{display:grid;grid-template-columns:repeat(auto-fill,minmax(min(180px,100%),1fr));gap:12px;margin-top:4px;}\n .ro-wrap .spec-card{background:var(--offwhite);border:1px solid var(--slate);border-radius:var(--radius);padding:16px;}\n .ro-wrap .spec-card .sc-label{font-size:13px !important;font-weight:700;letter-spacing:.08em;color:var(--sky);text-transform:uppercase;margin-bottom:4px;}\n .ro-wrap .spec-card .sc-value{font-size:20px !important;font-weight:600;color:var(--deep);margin-bottom:4px;}\n .ro-wrap .spec-card .sc-note{font-size:15px !important;color:var(--muted);}\n @media(max-width:640px){\n .ro-wrap .ro-hero{padding:36px 24px 32px;}\n .ro-wrap .ro-section{padding:28px 20px;}\n .ro-wrap .ro-feature-grid,.ro-wrap .faucet-grid,.ro-wrap .filter-schedule,.ro-wrap .spec-cards{grid-template-columns:1fr;}\n .ro-wrap .benefits-strip{flex-direction:column;}\n .ro-wrap .benefit-item{border-right:none;border-bottom:1px solid rgba(255,255,255,.1);}\n }\n \/* ── Nuclear override — force all text inside ro-wrap to be readable ── *\/\n .ro-wrap p,\n .ro-wrap li,\n .ro-wrap td,\n .ro-wrap th,\n .ro-wrap .ro-section \u003e p {\n font-size: 18px !important;\n line-height: 1.6 !important;\n }\n .ro-wrap .ro-section \u003e p,\n .ro-wrap .ro-callout p,\n .ro-wrap .stage-body p,\n .ro-wrap .ro-feature-card p,\n .ro-wrap .schedule-card p,\n .ro-wrap .faucet-card p,\n .ro-wrap .spec-card .sc-note,\n .ro-wrap .pro-tip p {\n font-size: 18px !important;\n line-height: 1.6 !important;\n }\n .ro-wrap h2 { font-size: clamp(26px,4vw,40px) !important; line-height:1.15 !important; }\n .ro-wrap h3 { font-size: 20px !important; line-height:1.3 !important; }\n .ro-wrap h4 { font-size: 18px !important; line-height:1.3 !important; }\n .ro-wrap .ro-label,\n .ro-wrap .stage-tag,\n .ro-wrap .sc-label { font-size: 14px !important; }\n .ro-wrap .ro-title { font-size: 24px !important; }\n .ro-wrap .interval { font-size: 22px !important; }\n .ro-wrap .stage-num { font-size: 16px !important; }\n .ro-wrap .ro-eyebrow { font-size: 14px !important; }\n .ro-wrap .ro-badge { font-size: 15px !important; }\n\u003c\/style\u003e\n\u003cdiv class=\"ro-wrap\"\u003e\n\n\u003cdiv class=\"ro-hero\"\u003e\n\u003cdiv class=\"ro-eyebrow\"\u003eWatts Premier\u003c\/div\u003e\n\u003ch2\u003eWP-PLUS-KIT \u003cem\u003eRO-Pure Push Button Replacement Filter Kit\u003c\/em\u003e\n\u003c\/h2\u003e\n\u003cp class=\"ro-tagline\"\u003eComplete four-stage filter replacement kit for Watts Premier RO-Pure PLUS systems with push button release, including VOC post-carbon filtration for herbicide and pesticide reduction\u003c\/p\u003e\n\u003cdiv class=\"ro-badges\"\u003e\n\u003cspan class=\"ro-badge\"\u003ePush Button Release\u003c\/span\u003e\n\u003cspan class=\"ro-badge\"\u003e50 GPD Membrane\u003c\/span\u003e\n\u003cspan class=\"ro-badge\"\u003eVOC Reduction\u003c\/span\u003e\n\u003cspan class=\"ro-badge\"\u003eComplete Kit\u003c\/span\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"ro-section\"\u003e\n\u003cdiv class=\"ro-label\"\u003eWHY IT WORKS\u003c\/div\u003e\n\u003ch3 class=\"ro-title\"\u003eFour-stage protection engineered for contaminated groundwater\u003c\/h3\u003e\n\u003cdiv class=\"ro-feature-grid\"\u003e\n\u003cdiv class=\"ro-feature-card\"\u003e\n\u003cdiv class=\"ro-feat-icon\"\u003e\u003cspan\u003e🛡️\u003c\/span\u003e\u003c\/div\u003e\n\u003ch3\u003eSediment Pre-Filtration\u003c\/h3\u003e\n\u003cp\u003eF105311 11-inch sediment prefilter removes particulates and protects downstream filters from premature clogging in well water and municipal supplies\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"ro-feature-card\"\u003e\n\u003cdiv class=\"ro-feat-icon\"\u003e\u003cspan\u003e⚫\u003c\/span\u003e\u003c\/div\u003e\n\u003ch3\u003eCarbon Block Pre-Treatment\u003c\/h3\u003e\n\u003cp\u003eF105351 11-inch carbon prefilter reduces chlorine, taste, and odor before the membrane stage to extend RO membrane life\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"ro-feature-card\"\u003e\n\u003cdiv class=\"ro-feat-icon\"\u003e\u003cspan\u003e💧\u003c\/span\u003e\u003c\/div\u003e\n\u003ch3\u003e50 GPD Reverse Osmosis\u003c\/h3\u003e\n\u003cp\u003eF105331 11-inch RO membrane removes dissolved solids, heavy metals, and contaminants down to 0.0001 micron for deep purification\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"ro-feature-card\"\u003e\n\u003cdiv class=\"ro-feat-icon\"\u003e\u003cspan\u003e🧪\u003c\/span\u003e\u003c\/div\u003e\n\u003ch3\u003eVOC Post-Carbon Polish\u003c\/h3\u003e\n\u003cp\u003eF105381 premium high-capacity carbon block formulated specifically for herbicides, pesticides, TTHMs, DBPs, and volatile organic compounds present in one-fifth of US water supplies\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"ro-section\"\u003e\n\u003cdiv class=\"ro-label\"\u003eCOMPATIBILITY\u003c\/div\u003e\n\u003ch3 class=\"ro-title\"\u003eDesigned exclusively for Watts Premier RO-Pure PLUS systems\u003c\/h3\u003e\n\u003cp\u003eThis kit fits Watts Premier RO-Pure PLUS reverse osmosis systems with push button filter release mechanism. These filters will not fit Watts Kwik Change RO units that require a quarter-turn installation. Verify your system uses push button cartridge release before ordering. Compatible with systems originally equipped with the silver VOC post-carbon filter.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"ro-section\"\u003e\n\u003cdiv class=\"ro-label\"\u003eMAINTENANCE\u003c\/div\u003e\n\u003ch3 class=\"ro-title\"\u003eFilter replacement schedule for optimal performance\u003c\/h3\u003e\n\u003cdiv class=\"filter-schedule\"\u003e\n\u003cdiv class=\"schedule-card\"\u003e\n\u003cdiv class=\"interval\"\u003eEvery 6 Months\u003c\/div\u003e\n\u003ch4\u003eSediment \u0026amp; Carbon Prefilters\u003c\/h4\u003e\n\u003cp\u003eReplace F105311 sediment prefilter (red) and F105351 carbon prefilter (orange) every six months or when flow rate decreases noticeably\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"schedule-card\"\u003e\n\u003cdiv class=\"interval\"\u003eEvery 12-24 Months\u003c\/div\u003e\n\u003ch4\u003eRO Membrane\u003c\/h4\u003e\n\u003cp\u003eReplace F105331 50 GPD membrane (green) annually or every two years depending on source water quality and total dissolved solids levels\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"schedule-card\"\u003e\n\u003cdiv class=\"interval\"\u003eEvery 12 Months\u003c\/div\u003e\n\u003ch4\u003eVOC Post-Carbon Filter\u003c\/h4\u003e\n\u003cp\u003eReplace F105381 VOC post-carbon filter (silver\/gold) annually to maintain reduction of volatile organic compounds, herbicides, and pesticides\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"benefits-strip\"\u003e\n\u003cdiv class=\"benefit-item\"\u003e\n\u003cdiv class=\"bi-icon\"\u003e🔘\u003c\/div\u003e\n\u003ch4\u003ePush Button Release\u003c\/h4\u003e\n\u003cp\u003eTool-free cartridge changes with quick push button mechanism\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"benefit-item\"\u003e\n\u003cdiv class=\"bi-icon\"\u003e🌾\u003c\/div\u003e\n\u003ch4\u003eVOC Protection\u003c\/h4\u003e\n\u003cp\u003eTargets herbicides, pesticides, and dry-cleaning solvents in groundwater\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"benefit-item\"\u003e\n\u003cdiv class=\"bi-icon\"\u003e📦\u003c\/div\u003e\n\u003ch4\u003eComplete Kit\u003c\/h4\u003e\n\u003cp\u003eAll four replacement filters included for 12 months of protection\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"benefit-item\"\u003e\n\u003cdiv class=\"bi-icon\"\u003e🎯\u003c\/div\u003e\n\u003ch4\u003eColor-Coded System\u003c\/h4\u003e\n\u003cp\u003eEach filter marked with unique color for foolproof installation sequence\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003c\/div\u003e","brand":"Watts","offers":[{"title":"Default Title","offer_id":35474004410530,"sku":"HU-H9GG-3S1O","price":225.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0446\/7677\/6098\/files\/product-5537372012706-padded.jpg?v=1777271410"},{"product_id":"watts-premier-1r-1y-1b-1g-ro-pure-push-button-replacement-filter-set","title":"Watts Premier 531152 1R-1Y-1B-1G RO-Pure Push Button Replacement Filter Set","description":"\n\u003clink href=\"https:\/\/fonts.googleapis.com\/css2?family=DM+Serif+Display:ital@0;1\u0026amp;family=DM+Sans:wght@300;400;500;600\u0026amp;display=swap\" rel=\"stylesheet\"\u003e\n\u003cstyle\u003e\n .ro-wrap {\n --deep:#0a1628;--ocean:#0f3460;--blue:#1565c0;--sky:#2196f3;--aqua:#4dd0e1;\n --white:#ffffff;--offwhite:#f2f7fc;--slate:#dce8f5;--text:#0d1f38;--muted:#4a6280;\n --gold:#f59e0b;--radius:12px;\n font-family:'DM Sans',sans-serif;color:var(--text);line-height:1.6;-webkit-font-smoothing:antialiased;overflow-wrap:break-word;word-break:break-word;min-width:0;\n }\n .ro-wrap .ro-hero{background:linear-gradient(135deg,var(--deep) 0%,var(--ocean) 50%,#1a5276 100%);color:var(--white);padding:52px 40px 44px;position:relative;overflow:hidden;border-radius:var(--radius) var(--radius) 0 0;}\n .ro-wrap .ro-hero::before{content:'';position:absolute;inset:0;background:radial-gradient(ellipse 70% 55% at 95% 45%,rgba(77,208,225,.15) 0%,transparent 65%),radial-gradient(ellipse 40% 40% at 5% 80%,rgba(255,255,255,.05) 0%,transparent 60%);pointer-events:none;}\n .ro-wrap .ro-eyebrow{font-size:13px !important;font-weight:600;letter-spacing:.18em;text-transform:uppercase;color:var(--aqua);margin-bottom:12px;}\n .ro-wrap .ro-hero h2{font-family:'DM Serif Display',serif;font-size:clamp(26px,4vw,40px) !important;line-height:1.15;font-weight:400;margin-bottom:16px;color:var(--white);}\n .ro-wrap .ro-hero h2 em{font-style:italic;color:var(--aqua);}\n .ro-wrap .ro-tagline{font-size:18px !important;color:rgba(255,255,255,.75);font-weight:300;margin-bottom:28px;}\n .ro-wrap .ro-badges{display:flex;flex-wrap:wrap;gap:10px;}\n .ro-wrap .ro-badge{display:inline-flex;align-items:center;gap:6px;background:rgba(255,255,255,.12);border:1px solid rgba(255,255,255,.2);color:var(--white);font-size:15px !important;font-weight:500;padding:6px 14px;border-radius:40px;backdrop-filter:blur(6px);}\n .ro-wrap .ro-callout{background:var(--offwhite);border-left:4px solid var(--sky);padding:20px 24px;}\n .ro-wrap .ro-callout p{font-size:18px !important;color:var(--text);line-height:1.7;margin:0;}\n .ro-wrap .ro-callout strong{color:var(--ocean);}\n .ro-wrap .ro-section{padding:36px 40px;border-bottom:1px solid var(--slate);}\n .ro-wrap .ro-label{font-size:13px !important;font-weight:700;letter-spacing:.2em;text-transform:uppercase;color:var(--sky);margin-bottom:8px;}\n .ro-wrap .ro-title{font-family:'DM Serif Display',serif;font-size:24px !important;color:var(--deep);margin-bottom:20px;font-weight:400;}\n .ro-wrap .stage-pipeline{display:flex;flex-direction:column;gap:0;margin-top:4px;}\n .ro-wrap .stage-row{display:flex;flex-direction:row;gap:12px;position:relative;min-width:0;align-items:flex-start;width:100%;box-sizing:border-box;}\n .ro-wrap .stage-row:not(:last-child) .stage-line{position:absolute;left:17px;top:40px;bottom:0;width:2px;background:var(--slate);}\n .ro-wrap .stage-num{width:36px;height:36px;min-width:36px;max-width:36px;border-radius:50%;background:linear-gradient(135deg,var(--ocean),var(--sky));color:white;display:flex;align-items:center;justify-content:center;font-size:16px !important;font-weight:700;flex:0 0 36px;position:relative;z-index:1;margin-top:16px;}\n .ro-wrap .stage-body{background:var(--offwhite);border:1px solid var(--slate);border-radius:var(--radius);padding:16px 18px;margin-bottom:12px;flex:1 1 0;min-width:0;overflow:hidden;overflow-wrap:break-word;word-break:break-word;box-sizing:border-box;}\n .ro-wrap .stage-body h3{font-size:20px !important;font-weight:600;color:var(--deep);margin-bottom:8px;margin-top:6px;}\n .ro-wrap .stage-tag{display:block;font-size:12px !important;font-weight:700;letter-spacing:.04em;text-transform:uppercase;background:var(--slate);color:var(--ocean);padding:3px 8px;border-radius:4px;margin-bottom:8px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;max-width:100%;line-height:1.5 !important;box-sizing:border-box;}\n .ro-wrap .stage-body p{font-size:18px !important;color:var(--muted);line-height:1.6;margin:0;display:block;}\n .ro-wrap .stage-body .stage-part{font-size:15px !important;color:var(--sky);margin-top:6px;font-weight:500;}\n .ro-wrap .specs-table{width:100%;border-collapse:collapse;font-size:18px !important;}\n .ro-wrap .specs-table tr{border-bottom:1px solid var(--slate);}\n .ro-wrap .specs-table tr:last-child{border-bottom:none;}\n .ro-wrap .specs-table td{padding:11px 6px;vertical-align:top;}\n .ro-wrap .specs-table td:first-child{font-weight:500;color:var(--deep);width:44%;padding-right:16px;}\n .ro-wrap .specs-table td:last-child{color:var(--muted);}\n .ro-wrap .specs-table tr:hover td{background:var(--offwhite);}\n .ro-wrap .conditions-table{width:100%;border-collapse:collapse;font-size:18px !important;margin-top:4px;}\n .ro-wrap .conditions-table th{background:var(--deep);color:var(--white);font-size:15px !important;font-weight:600;letter-spacing:.06em;text-transform:uppercase;padding:10px 12px;text-align:left;}\n .ro-wrap .conditions-table th:first-child{border-radius:var(--radius) 0 0 0;}\n .ro-wrap .conditions-table th:last-child{border-radius:0 var(--radius) 0 0;}\n .ro-wrap .conditions-table td{padding:10px 12px;border-bottom:1px solid var(--slate);color:var(--text);}\n .ro-wrap .conditions-table tr:nth-child(even) td{background:var(--offwhite);}\n .ro-wrap .ro-feature-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(min(220px,100%),1fr));gap:16px;margin-top:4px;}\n .ro-wrap .ro-feature-card{background:var(--offwhite);border:1px solid var(--slate);border-radius:var(--radius);padding:20px 18px;}\n .ro-wrap .ro-feat-icon{width:40px;height:40px;background:linear-gradient(135deg,var(--ocean),var(--sky));border-radius:10px;display:flex;align-items:center;justify-content:center;margin-bottom:12px;}\n .ro-wrap .ro-feature-card h3{font-size:20px !important;font-weight:600;color:var(--deep);margin-bottom:6px;}\n .ro-wrap .ro-feature-card p{font-size:18px !important;color:var(--muted);line-height:1.55;margin:0;}\n .ro-wrap .pro-tip{display:block;background:#fffbeb;border:1px solid #f5d87a;border-radius:var(--radius);padding:18px 20px;margin-top:20px;box-sizing:border-box;width:100% !important;}\n .ro-wrap .pro-tip-icon{font-size:22px !important;display:inline;margin-right:8px;line-height:1.6 !important;}\n .ro-wrap .pro-tip p{font-size:18px !important;color:#5a4500;line-height:1.6 !important;margin:0;display:block;width:100%;}\n .ro-wrap .pro-tip strong{color:#3d2e00;}\n .ro-wrap .install-steps{counter-reset:step;list-style:none;padding:0;margin:4px 0 0;display:flex;flex-direction:column;gap:14px;}\n .ro-wrap .install-steps li{counter-increment:step;display:flex;align-items:flex-start;gap:14px;font-size:18px !important;color:var(--text);}\n .ro-wrap .install-steps li::before{content:counter(step);display:flex;align-items:center;justify-content:center;width:28px;height:28px;border-radius:50%;background:var(--ocean);color:white;font-size:15px !important;font-weight:700;flex-shrink:0;margin-top:1px;}\n .ro-wrap .filter-schedule{display:grid;grid-template-columns:repeat(auto-fill,minmax(min(180px,100%),1fr));gap:12px;margin-top:4px;}\n .ro-wrap .schedule-card{background:var(--offwhite);border:1px solid var(--slate);border-radius:var(--radius);padding:16px;}\n .ro-wrap .schedule-card .interval{font-size:22px !important;font-family:'DM Serif Display',serif;color:var(--sky);font-weight:400;margin-bottom:4px;}\n .ro-wrap .schedule-card h4{font-size:18px !important;font-weight:600;color:var(--deep);margin-bottom:4px;}\n .ro-wrap .schedule-card p{font-size:15px !important;color:var(--muted);margin:0;line-height:1.45;}\n .ro-wrap .benefits-strip{display:flex;flex-wrap:wrap;background:var(--deep);color:var(--white);border-radius:0 0 var(--radius) var(--radius);overflow:hidden;}\n .ro-wrap .benefit-item{flex:1 1 200px;padding:24px 22px;border-right:1px solid rgba(255,255,255,.1);}\n .ro-wrap .benefit-item:last-child{border-right:none;}\n .ro-wrap .bi-icon{font-size:22px !important;margin-bottom:10px;}\n .ro-wrap .benefit-item h4{font-size:15px !important;font-weight:600;color:var(--aqua);margin-bottom:5px;text-transform:uppercase;letter-spacing:.05em;}\n .ro-wrap .benefit-item p{font-size:15px !important;color:rgba(255,255,255,.65);line-height:1.55;margin:0;}\n .ro-wrap .faucet-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(min(200px,100%),1fr));gap:16px;margin-top:4px;}\n .ro-wrap .faucet-card{border:2px solid var(--slate);border-radius:var(--radius);padding:18px;text-align:center;}\n .ro-wrap .faucet-icon{font-size:28px !important;margin-bottom:10px;}\n .ro-wrap .faucet-card h4{font-size:18px !important;font-weight:600;color:var(--deep);margin-bottom:6px;}\n .ro-wrap .faucet-card p{font-size:15px !important;color:var(--muted);line-height:1.5;margin:0;}\n .ro-wrap .spec-cards{display:grid;grid-template-columns:repeat(auto-fill,minmax(min(180px,100%),1fr));gap:12px;margin-top:4px;}\n .ro-wrap .spec-card{background:var(--offwhite);border:1px solid var(--slate);border-radius:var(--radius);padding:16px;}\n .ro-wrap .spec-card .sc-label{font-size:13px !important;font-weight:700;letter-spacing:.08em;color:var(--sky);text-transform:uppercase;margin-bottom:4px;}\n .ro-wrap .spec-card .sc-value{font-size:20px !important;font-weight:600;color:var(--deep);margin-bottom:4px;}\n .ro-wrap .spec-card .sc-note{font-size:15px !important;color:var(--muted);}\n @media(max-width:640px){\n .ro-wrap .ro-hero{padding:36px 24px 32px;}\n .ro-wrap .ro-section{padding:28px 20px;}\n .ro-wrap .ro-feature-grid,.ro-wrap .faucet-grid,.ro-wrap .filter-schedule,.ro-wrap .spec-cards{grid-template-columns:1fr;}\n .ro-wrap .benefits-strip{flex-direction:column;}\n .ro-wrap .benefit-item{border-right:none;border-bottom:1px solid rgba(255,255,255,.1);}\n }\n \/* ── Nuclear override — force all text inside ro-wrap to be readable ── *\/\n .ro-wrap p,\n .ro-wrap li,\n .ro-wrap td,\n .ro-wrap th,\n .ro-wrap .ro-section \u003e p {\n font-size: 18px !important;\n line-height: 1.6 !important;\n }\n .ro-wrap .ro-section \u003e p,\n .ro-wrap .ro-callout p,\n .ro-wrap .stage-body p,\n .ro-wrap .ro-feature-card p,\n .ro-wrap .schedule-card p,\n .ro-wrap .faucet-card p,\n .ro-wrap .spec-card .sc-note,\n .ro-wrap .pro-tip p {\n font-size: 18px !important;\n line-height: 1.6 !important;\n }\n .ro-wrap h2 { font-size: clamp(26px,4vw,40px) !important; line-height:1.15 !important; }\n .ro-wrap h3 { font-size: 20px !important; line-height:1.3 !important; }\n .ro-wrap h4 { font-size: 18px !important; line-height:1.3 !important; }\n .ro-wrap .ro-label,\n .ro-wrap .stage-tag,\n .ro-wrap .sc-label { font-size: 14px !important; }\n .ro-wrap .ro-title { font-size: 24px !important; }\n .ro-wrap .interval { font-size: 22px !important; }\n .ro-wrap .stage-num { font-size: 16px !important; }\n .ro-wrap .ro-eyebrow { font-size: 14px !important; }\n .ro-wrap .ro-badge { font-size: 15px !important; }\n\u003c\/style\u003e\n\u003cdiv class=\"ro-wrap\"\u003e\n\n\u003cdiv class=\"ro-callout\"\u003e\nThe Watts Premier 1R-1Y-1B-1G RO-Pure Push Button Replacement Filter Set delivers a complete four-stage filter refresh for your Premier RO-Pure (RO-4) reverse osmosis system. This color-coded kit includes sediment prefilter, carbon prefilter, 50 GPD membrane, and carbon post-filter—all designed for push-button installation in Premier RO-Pure systems.\n\u003c\/div\u003e\n\n\u003cdiv class=\"ro-section\"\u003e\n\u003cdiv class=\"ro-label\"\u003eWHAT'S INCLUDED\u003c\/div\u003e\n\u003ch2 class=\"ro-title\"\u003eFour-Filter Complete Replacement Kit\u003c\/h2\u003e\n\u003cdiv class=\"spec-cards\"\u003e\n\u003cdiv class=\"spec-card\"\u003e\n\u003cdiv class=\"sc-label\"\u003eSediment Prefilter\u003c\/div\u003e\n\u003cdiv class=\"sc-value\"\u003eF105311\u003c\/div\u003e\n\u003cdiv class=\"sc-note\"\u003e11\" sediment cartridge (red button)\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"spec-card\"\u003e\n\u003cdiv class=\"sc-label\"\u003eCarbon Prefilter\u003c\/div\u003e\n\u003cdiv class=\"sc-value\"\u003eF105351\u003c\/div\u003e\n\u003cdiv class=\"sc-note\"\u003e11\" carbon cartridge (orange button)\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"spec-card\"\u003e\n\u003cdiv class=\"sc-label\"\u003eRO Membrane\u003c\/div\u003e\n\u003cdiv class=\"sc-value\"\u003eF105331\u003c\/div\u003e\n\u003cdiv class=\"sc-note\"\u003e50 GPD membrane (green button)\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"spec-card\"\u003e\n\u003cdiv class=\"sc-label\"\u003eCarbon Post-Filter\u003c\/div\u003e\n\u003cdiv class=\"sc-value\"\u003eF105341\u003c\/div\u003e\n\u003cdiv class=\"sc-note\"\u003e11\" post-filter (blue button)\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"ro-section\"\u003e\n\u003cdiv class=\"ro-label\"\u003eTECHNICAL DETAILS\u003c\/div\u003e\n\u003ch2 class=\"ro-title\"\u003eSpecifications\u003c\/h2\u003e\n\u003ctable class=\"specs-table\"\u003e\n\u003ctr\u003e\n\u003ctd\u003eManufacturer\u003c\/td\u003e\n\u003ctd\u003eWatts Premier (formerly branded \"Watts Premier,\" now \"Premier\")\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eModel Number\u003c\/td\u003e\n\u003ctd\u003e1R-1Y-1B-1G\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFilter Length\u003c\/td\u003e\n\u003ctd\u003e11 inches (all four cartridges)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMembrane Output\u003c\/td\u003e\n\u003ctd\u003e50 gallons per day (GPD)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInstallation Type\u003c\/td\u003e\n\u003ctd\u003ePush-button locking mechanism\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eColor Coding\u003c\/td\u003e\n\u003ctd\u003eRed (sediment), Orange (carbon pre), Green (membrane), Blue (carbon post)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eQuantity\u003c\/td\u003e\n\u003ctd\u003e4 filters (complete set for one full system refresh)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"ro-section\"\u003e\n\u003cdiv class=\"ro-label\"\u003eCOMPATIBILITY \u0026amp; APPLICATIONS\u003c\/div\u003e\n\u003ch2 class=\"ro-title\"\u003eSystem Compatibility\u003c\/h2\u003e\n\u003cp\u003eThis filter set is engineered specifically for the Premier RO-Pure and RO-4 reverse osmosis systems that use push-button filter replacement. The filters lock into place with a simple push—no twisting or threading required. This kit is not compatible with Watts 1\/4 Turn KWIK Change systems, which use a quarter-turn locking mechanism instead of push-button. Verify your system uses push-button cartridge retention before ordering. Color-coded buttons make it easy to identify which filter goes where during replacement.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"pro-tip\"\u003e\n💧 \u003cstrong\u003ePro Tip:\u003c\/strong\u003e The color-coded buttons aren't just for looks—they correspond to the order of filtration (red sediment first, blue carbon polish last). Replace all four filters at the same time to maintain balanced system performance and avoid premature membrane failure.\n\u003c\/div\u003e\n\n\u003c\/div\u003e","brand":"Watts","offers":[{"title":"Default Title","offer_id":35474017157282,"sku":"BJ-RHI9-8S3S","price":193.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0446\/7677\/6098\/files\/product-5537376829602-padded.jpg?v=1777271377"},{"product_id":"watts-premier-ro-pure-replacement-filter-6-pack-plus-membrane","title":"Watts Premier 531161 RO Pure Plus 6 Pack Filter Kit","description":"\n\u003clink href=\"https:\/\/fonts.googleapis.com\/css2?family=DM+Serif+Display:ital@0;1\u0026amp;family=DM+Sans:wght@300;400;500;600\u0026amp;display=swap\" rel=\"stylesheet\"\u003e\n\u003cstyle\u003e\n .ro-wrap {\n --deep:#0a1628;--ocean:#0f3460;--blue:#1565c0;--sky:#2196f3;--aqua:#4dd0e1;\n --white:#ffffff;--offwhite:#f2f7fc;--slate:#dce8f5;--text:#0d1f38;--muted:#4a6280;\n --gold:#f59e0b;--radius:12px;\n font-family:'DM Sans',sans-serif;color:var(--text);line-height:1.6;-webkit-font-smoothing:antialiased;overflow-wrap:break-word;word-break:break-word;min-width:0;\n }\n .ro-wrap .ro-hero{background:linear-gradient(135deg,var(--deep) 0%,var(--ocean) 50%,#1a5276 100%);color:var(--white);padding:52px 40px 44px;position:relative;overflow:hidden;border-radius:var(--radius) var(--radius) 0 0;}\n .ro-wrap .ro-hero::before{content:'';position:absolute;inset:0;background:radial-gradient(ellipse 70% 55% at 95% 45%,rgba(77,208,225,.15) 0%,transparent 65%),radial-gradient(ellipse 40% 40% at 5% 80%,rgba(255,255,255,.05) 0%,transparent 60%);pointer-events:none;}\n .ro-wrap .ro-eyebrow{font-size:13px !important;font-weight:600;letter-spacing:.18em;text-transform:uppercase;color:var(--aqua);margin-bottom:12px;}\n .ro-wrap .ro-hero h2{font-family:'DM Serif Display',serif;font-size:clamp(26px,4vw,40px) !important;line-height:1.15;font-weight:400;margin-bottom:16px;color:var(--white);}\n .ro-wrap .ro-hero h2 em{font-style:italic;color:var(--aqua);}\n .ro-wrap .ro-tagline{font-size:18px !important;color:rgba(255,255,255,.75);font-weight:300;margin-bottom:28px;}\n .ro-wrap .ro-badges{display:flex;flex-wrap:wrap;gap:10px;}\n .ro-wrap .ro-badge{display:inline-flex;align-items:center;gap:6px;background:rgba(255,255,255,.12);border:1px solid rgba(255,255,255,.2);color:var(--white);font-size:15px !important;font-weight:500;padding:6px 14px;border-radius:40px;backdrop-filter:blur(6px);}\n .ro-wrap .ro-callout{background:var(--offwhite);border-left:4px solid var(--sky);padding:20px 24px;}\n .ro-wrap .ro-callout p{font-size:18px !important;color:var(--text);line-height:1.7;margin:0;}\n .ro-wrap .ro-callout strong{color:var(--ocean);}\n .ro-wrap .ro-section{padding:36px 40px;border-bottom:1px solid var(--slate);}\n .ro-wrap .ro-label{font-size:13px !important;font-weight:700;letter-spacing:.2em;text-transform:uppercase;color:var(--sky);margin-bottom:8px;}\n .ro-wrap .ro-title{font-family:'DM Serif Display',serif;font-size:24px !important;color:var(--deep);margin-bottom:20px;font-weight:400;}\n .ro-wrap .stage-pipeline{display:flex;flex-direction:column;gap:0;margin-top:4px;}\n .ro-wrap .stage-row{display:flex;flex-direction:row;gap:12px;position:relative;min-width:0;align-items:flex-start;width:100%;box-sizing:border-box;}\n .ro-wrap .stage-row:not(:last-child) .stage-line{position:absolute;left:17px;top:40px;bottom:0;width:2px;background:var(--slate);}\n .ro-wrap .stage-num{width:36px;height:36px;min-width:36px;max-width:36px;border-radius:50%;background:linear-gradient(135deg,var(--ocean),var(--sky));color:white;display:flex;align-items:center;justify-content:center;font-size:16px !important;font-weight:700;flex:0 0 36px;position:relative;z-index:1;margin-top:16px;}\n .ro-wrap .stage-body{background:var(--offwhite);border:1px solid var(--slate);border-radius:var(--radius);padding:16px 18px;margin-bottom:12px;flex:1 1 0;min-width:0;overflow:hidden;overflow-wrap:break-word;word-break:break-word;box-sizing:border-box;}\n .ro-wrap .stage-body h3{font-size:20px !important;font-weight:600;color:var(--deep);margin-bottom:8px;margin-top:6px;}\n .ro-wrap .stage-tag{display:block;font-size:12px !important;font-weight:700;letter-spacing:.04em;text-transform:uppercase;background:var(--slate);color:var(--ocean);padding:3px 8px;border-radius:4px;margin-bottom:8px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;max-width:100%;line-height:1.5 !important;box-sizing:border-box;}\n .ro-wrap .stage-body p{font-size:18px !important;color:var(--muted);line-height:1.6;margin:0;display:block;}\n .ro-wrap .stage-body .stage-part{font-size:15px !important;color:var(--sky);margin-top:6px;font-weight:500;}\n .ro-wrap .specs-table{width:100%;border-collapse:collapse;font-size:18px !important;}\n .ro-wrap .specs-table tr{border-bottom:1px solid var(--slate);}\n .ro-wrap .specs-table tr:last-child{border-bottom:none;}\n .ro-wrap .specs-table td{padding:11px 6px;vertical-align:top;}\n .ro-wrap .specs-table td:first-child{font-weight:500;color:var(--deep);width:44%;padding-right:16px;}\n .ro-wrap .specs-table td:last-child{color:var(--muted);}\n .ro-wrap .specs-table tr:hover td{background:var(--offwhite);}\n .ro-wrap .conditions-table{width:100%;border-collapse:collapse;font-size:18px !important;margin-top:4px;}\n .ro-wrap .conditions-table th{background:var(--deep);color:var(--white);font-size:15px !important;font-weight:600;letter-spacing:.06em;text-transform:uppercase;padding:10px 12px;text-align:left;}\n .ro-wrap .conditions-table th:first-child{border-radius:var(--radius) 0 0 0;}\n .ro-wrap .conditions-table th:last-child{border-radius:0 var(--radius) 0 0;}\n .ro-wrap .conditions-table td{padding:10px 12px;border-bottom:1px solid var(--slate);color:var(--text);}\n .ro-wrap .conditions-table tr:nth-child(even) td{background:var(--offwhite);}\n .ro-wrap .ro-feature-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(min(220px,100%),1fr));gap:16px;margin-top:4px;}\n .ro-wrap .ro-feature-card{background:var(--offwhite);border:1px solid var(--slate);border-radius:var(--radius);padding:20px 18px;}\n .ro-wrap .ro-feat-icon{width:40px;height:40px;background:linear-gradient(135deg,var(--ocean),var(--sky));border-radius:10px;display:flex;align-items:center;justify-content:center;margin-bottom:12px;}\n .ro-wrap .ro-feature-card h3{font-size:20px !important;font-weight:600;color:var(--deep);margin-bottom:6px;}\n .ro-wrap .ro-feature-card p{font-size:18px !important;color:var(--muted);line-height:1.55;margin:0;}\n .ro-wrap .pro-tip{display:block;background:#fffbeb;border:1px solid #f5d87a;border-radius:var(--radius);padding:18px 20px;margin-top:20px;box-sizing:border-box;width:100% !important;}\n .ro-wrap .pro-tip-icon{font-size:22px !important;display:inline;margin-right:8px;line-height:1.6 !important;}\n .ro-wrap .pro-tip p{font-size:18px !important;color:#5a4500;line-height:1.6 !important;margin:0;display:block;width:100%;}\n .ro-wrap .pro-tip strong{color:#3d2e00;}\n .ro-wrap .install-steps{counter-reset:step;list-style:none;padding:0;margin:4px 0 0;display:flex;flex-direction:column;gap:14px;}\n .ro-wrap .install-steps li{counter-increment:step;display:flex;align-items:flex-start;gap:14px;font-size:18px !important;color:var(--text);}\n .ro-wrap .install-steps li::before{content:counter(step);display:flex;align-items:center;justify-content:center;width:28px;height:28px;border-radius:50%;background:var(--ocean);color:white;font-size:15px !important;font-weight:700;flex-shrink:0;margin-top:1px;}\n .ro-wrap .filter-schedule{display:grid;grid-template-columns:repeat(auto-fill,minmax(min(180px,100%),1fr));gap:12px;margin-top:4px;}\n .ro-wrap .schedule-card{background:var(--offwhite);border:1px solid var(--slate);border-radius:var(--radius);padding:16px;}\n .ro-wrap .schedule-card .interval{font-size:22px !important;font-family:'DM Serif Display',serif;color:var(--sky);font-weight:400;margin-bottom:4px;}\n .ro-wrap .schedule-card h4{font-size:18px !important;font-weight:600;color:var(--deep);margin-bottom:4px;}\n .ro-wrap .schedule-card p{font-size:15px !important;color:var(--muted);margin:0;line-height:1.45;}\n .ro-wrap .benefits-strip{display:flex;flex-wrap:wrap;background:var(--deep);color:var(--white);border-radius:0 0 var(--radius) var(--radius);overflow:hidden;}\n .ro-wrap .benefit-item{flex:1 1 200px;padding:24px 22px;border-right:1px solid rgba(255,255,255,.1);}\n .ro-wrap .benefit-item:last-child{border-right:none;}\n .ro-wrap .bi-icon{font-size:22px !important;margin-bottom:10px;}\n .ro-wrap .benefit-item h4{font-size:15px !important;font-weight:600;color:var(--aqua);margin-bottom:5px;text-transform:uppercase;letter-spacing:.05em;}\n .ro-wrap .benefit-item p{font-size:15px !important;color:rgba(255,255,255,.65);line-height:1.55;margin:0;}\n .ro-wrap .faucet-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(min(200px,100%),1fr));gap:16px;margin-top:4px;}\n .ro-wrap .faucet-card{border:2px solid var(--slate);border-radius:var(--radius);padding:18px;text-align:center;}\n .ro-wrap .faucet-icon{font-size:28px !important;margin-bottom:10px;}\n .ro-wrap .faucet-card h4{font-size:18px !important;font-weight:600;color:var(--deep);margin-bottom:6px;}\n .ro-wrap .faucet-card p{font-size:15px !important;color:var(--muted);line-height:1.5;margin:0;}\n .ro-wrap .spec-cards{display:grid;grid-template-columns:repeat(auto-fill,minmax(min(180px,100%),1fr));gap:12px;margin-top:4px;}\n .ro-wrap .spec-card{background:var(--offwhite);border:1px solid var(--slate);border-radius:var(--radius);padding:16px;}\n .ro-wrap .spec-card .sc-label{font-size:13px !important;font-weight:700;letter-spacing:.08em;color:var(--sky);text-transform:uppercase;margin-bottom:4px;}\n .ro-wrap .spec-card .sc-value{font-size:20px !important;font-weight:600;color:var(--deep);margin-bottom:4px;}\n .ro-wrap .spec-card .sc-note{font-size:15px !important;color:var(--muted);}\n @media(max-width:640px){\n .ro-wrap .ro-hero{padding:36px 24px 32px;}\n .ro-wrap .ro-section{padding:28px 20px;}\n .ro-wrap .ro-feature-grid,.ro-wrap .faucet-grid,.ro-wrap .filter-schedule,.ro-wrap .spec-cards{grid-template-columns:1fr;}\n .ro-wrap .benefits-strip{flex-direction:column;}\n .ro-wrap .benefit-item{border-right:none;border-bottom:1px solid rgba(255,255,255,.1);}\n }\n \/* ── Nuclear override — force all text inside ro-wrap to be readable ── *\/\n .ro-wrap p,\n .ro-wrap li,\n .ro-wrap td,\n .ro-wrap th,\n .ro-wrap .ro-section \u003e p {\n font-size: 18px !important;\n line-height: 1.6 !important;\n }\n .ro-wrap .ro-section \u003e p,\n .ro-wrap .ro-callout p,\n .ro-wrap .stage-body p,\n .ro-wrap .ro-feature-card p,\n .ro-wrap .schedule-card p,\n .ro-wrap .faucet-card p,\n .ro-wrap .spec-card .sc-note,\n .ro-wrap .pro-tip p {\n font-size: 18px !important;\n line-height: 1.6 !important;\n }\n .ro-wrap h2 { font-size: clamp(26px,4vw,40px) !important; line-height:1.15 !important; }\n .ro-wrap h3 { font-size: 20px !important; line-height:1.3 !important; }\n .ro-wrap h4 { font-size: 18px !important; line-height:1.3 !important; }\n .ro-wrap .ro-label,\n .ro-wrap .stage-tag,\n .ro-wrap .sc-label { font-size: 14px !important; }\n .ro-wrap .ro-title { font-size: 24px !important; }\n .ro-wrap .interval { font-size: 22px !important; }\n .ro-wrap .stage-num { font-size: 16px !important; }\n .ro-wrap .ro-eyebrow { font-size: 14px !important; }\n .ro-wrap .ro-badge { font-size: 15px !important; }\n\u003c\/style\u003e\n\u003cdiv class=\"ro-wrap\"\u003e\n \u003cdiv class=\"ro-hero\"\u003e\n \u003cdiv class=\"ro-eyebrow\"\u003eWatts Premier\u003c\/div\u003e\n \u003ch2\u003eRO Pure Plus 6 Pack Filter Kit\u003c\/h2\u003e\n \u003cdiv class=\"ro-tagline\"\u003eComplete annual replacement set for four-stage reverse osmosis systems\u003c\/div\u003e\n \u003cdiv class=\"ro-badges\"\u003e\n \u003cspan class=\"ro-badge\"\u003eModel 531161\u003c\/span\u003e\n \u003cspan class=\"ro-badge\"\u003eFour-Stage Filtration\u003c\/span\u003e\n \u003cspan class=\"ro-badge\"\u003e50 GPD Membrane Included\u003c\/span\u003e\n \u003cspan class=\"ro-badge\"\u003eFull Year Supply\u003c\/span\u003e\n \u003c\/div\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"ro-callout\"\u003e\n \u003cp\u003eThis complete replacement kit contains everything needed to maintain your Watts Premier RO Pure Plus or Zero Pure Plus reverse osmosis system for one full year. The six-piece set includes two sediment pre-filters, two carbon pre-filters, one 50 GPD membrane, and one VOC carbon post-filter, delivering four stages of filtration to reduce TDS, chlorine, volatile organic compounds, and common contaminants like arsenic, copper, lead, and cysts.\u003c\/p\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"ro-section\"\u003e\n \u003cdiv class=\"ro-label\"\u003eHOW IT WORKS\u003c\/div\u003e\n \u003ch2 class=\"ro-title\"\u003eFour-Stage Filtration Process\u003c\/h2\u003e\n \u003cdiv class=\"stage-pipeline\"\u003e\n \u003cdiv class=\"stage-row\"\u003e\n \u003cdiv class=\"stage-line\"\u003e\u003c\/div\u003e\n \u003cdiv class=\"stage-num\"\u003e1\u003c\/div\u003e\n \u003cdiv class=\"stage-body\"\u003e\n \u003cspan class=\"stage-tag\"\u003eSEDIMENT\u003c\/span\u003e\n \u003ch3\u003eParticulate Removal\u003c\/h3\u003e\n \u003cp\u003eTwo 5-micron sediment pre-filters (105311) trap dirt, silt, rust, and other particulate matter that affects water clarity and taste. Push-button release design makes filter changes simple.\u003c\/p\u003e\n \u003cspan class=\"stage-part\"\u003eReplace every 6 months\u003c\/span\u003e\n \u003c\/div\u003e\n \u003c\/div\u003e\n \u003cdiv class=\"stage-row\"\u003e\n \u003cdiv class=\"stage-line\"\u003e\u003c\/div\u003e\n \u003cdiv class=\"stage-num\"\u003e2\u003c\/div\u003e\n \u003cdiv class=\"stage-body\"\u003e\n \u003cspan class=\"stage-tag\"\u003eCARBON\u003c\/span\u003e\n \u003ch3\u003eChlorine \u0026amp; Odor Reduction\u003c\/h3\u003e\n \u003cp\u003eTwo 5-micron carbon pre-filters (105351) reduce chlorine and other materials that cause taste and odor issues, protecting the membrane and improving water quality before the RO stage.\u003c\/p\u003e\n \u003cspan class=\"stage-part\"\u003eReplace every 6 months\u003c\/span\u003e\n \u003c\/div\u003e\n \u003c\/div\u003e\n \u003cdiv class=\"stage-row\"\u003e\n \u003cdiv class=\"stage-line\"\u003e\u003c\/div\u003e\n \u003cdiv class=\"stage-num\"\u003e3\u003c\/div\u003e\n \u003cdiv class=\"stage-body\"\u003e\n \u003cspan class=\"stage-tag\"\u003eMEMBRANE\u003c\/span\u003e\n \u003ch3\u003eReverse Osmosis Separation\u003c\/h3\u003e\n \u003cp\u003eThe 50 GPD membrane (105331) reduces total dissolved solids and removes contaminants including arsenic, copper, lead, and cysts through semipermeable membrane filtration.\u003c\/p\u003e\n \u003cspan class=\"stage-part\"\u003eReplace every 2-5 years\u003c\/span\u003e\n \u003c\/div\u003e\n \u003c\/div\u003e\n \u003cdiv class=\"stage-row\"\u003e\n \u003cdiv class=\"stage-line\"\u003e\u003c\/div\u003e\n \u003cdiv class=\"stage-num\"\u003e4\u003c\/div\u003e\n \u003cdiv class=\"stage-body\"\u003e\n \u003cspan class=\"stage-tag\"\u003ePOLISH\u003c\/span\u003e\n \u003ch3\u003eVOC Post-Filtration\u003c\/h3\u003e\n \u003cp\u003eThe 1-micron VOC carbon post-filter (105381) removes volatile organic compounds like atrazine, 2,4-D, and lindane after the storage tank, functioning as a final polishing stage before dispensing.\u003c\/p\u003e\n \u003cspan class=\"stage-part\"\u003eReplace annually\u003c\/span\u003e\n \u003c\/div\u003e\n \u003c\/div\u003e\n \u003c\/div\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"ro-section\"\u003e\n \u003cdiv class=\"ro-label\"\u003eCOMPATIBILITY\u003c\/div\u003e\n \u003ch2 class=\"ro-title\"\u003eSystem Requirements\u003c\/h2\u003e\n \u003cp\u003eDesigned for Watts Premier RO Pure Plus and Zero Pure Plus reverse osmosis systems (models 531417, 531517). Also compatible with Watts Premier RO Pure systems (models 531411, 531407). Verify your system model before ordering to ensure proper fit with push-button filter housings.\u003c\/p\u003e\n \u003c\/div\u003e\n\u003c\/div\u003e","brand":"Isopure Water","offers":[{"title":"Default Title","offer_id":35474036064418,"sku":"Premier : 2R 2Y 1G 1S","price":275.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0446\/7677\/6098\/files\/product-5537382006946-padded.jpg?v=1777271383"},{"product_id":"watts-premier-w-2r-2y-1b-1g-ro-pure-replacement-filter-plus-membrane-6-pack","title":"Watts Premier W-2R-2Y-1B-1G Ro Pure Replacement Filter Plus Membrane, 6-pack","description":"\n\u003clink href=\"https:\/\/fonts.googleapis.com\/css2?family=DM+Serif+Display:ital@0;1\u0026amp;family=DM+Sans:wght@300;400;500;600\u0026amp;display=swap\" rel=\"stylesheet\"\u003e\n\u003cstyle\u003e\n .ro-wrap {\n --deep:#0a1628;--ocean:#0f3460;--blue:#1565c0;--sky:#2196f3;--aqua:#4dd0e1;\n --white:#ffffff;--offwhite:#f2f7fc;--slate:#dce8f5;--text:#0d1f38;--muted:#4a6280;\n --gold:#f59e0b;--radius:12px;\n font-family:'DM Sans',sans-serif;color:var(--text);line-height:1.6;-webkit-font-smoothing:antialiased;overflow-wrap:break-word;word-break:break-word;min-width:0;\n }\n .ro-wrap .ro-hero{background:linear-gradient(135deg,var(--deep) 0%,var(--ocean) 50%,#1a5276 100%);color:var(--white);padding:52px 40px 44px;position:relative;overflow:hidden;border-radius:var(--radius) var(--radius) 0 0;}\n .ro-wrap .ro-hero::before{content:'';position:absolute;inset:0;background:radial-gradient(ellipse 70% 55% at 95% 45%,rgba(77,208,225,.15) 0%,transparent 65%),radial-gradient(ellipse 40% 40% at 5% 80%,rgba(255,255,255,.05) 0%,transparent 60%);pointer-events:none;}\n .ro-wrap .ro-eyebrow{font-size:13px !important;font-weight:600;letter-spacing:.18em;text-transform:uppercase;color:var(--aqua);margin-bottom:12px;}\n .ro-wrap .ro-hero h2{font-family:'DM Serif Display',serif;font-size:clamp(26px,4vw,40px) !important;line-height:1.15;font-weight:400;margin-bottom:16px;color:var(--white);}\n .ro-wrap .ro-hero h2 em{font-style:italic;color:var(--aqua);}\n .ro-wrap .ro-tagline{font-size:18px !important;color:rgba(255,255,255,.75);font-weight:300;margin-bottom:28px;}\n .ro-wrap .ro-badges{display:flex;flex-wrap:wrap;gap:10px;}\n .ro-wrap .ro-badge{display:inline-flex;align-items:center;gap:6px;background:rgba(255,255,255,.12);border:1px solid rgba(255,255,255,.2);color:var(--white);font-size:15px !important;font-weight:500;padding:6px 14px;border-radius:40px;backdrop-filter:blur(6px);}\n .ro-wrap .ro-callout{background:var(--offwhite);border-left:4px solid var(--sky);padding:20px 24px;}\n .ro-wrap .ro-callout p{font-size:18px !important;color:var(--text);line-height:1.7;margin:0;}\n .ro-wrap .ro-callout strong{color:var(--ocean);}\n .ro-wrap .ro-section{padding:36px 40px;border-bottom:1px solid var(--slate);}\n .ro-wrap .ro-label{font-size:13px !important;font-weight:700;letter-spacing:.2em;text-transform:uppercase;color:var(--sky);margin-bottom:8px;}\n .ro-wrap .ro-title{font-family:'DM Serif Display',serif;font-size:24px !important;color:var(--deep);margin-bottom:20px;font-weight:400;}\n .ro-wrap .stage-pipeline{display:flex;flex-direction:column;gap:0;margin-top:4px;}\n .ro-wrap .stage-row{display:flex;flex-direction:row;gap:12px;position:relative;min-width:0;align-items:flex-start;width:100%;box-sizing:border-box;}\n .ro-wrap .stage-row:not(:last-child) .stage-line{position:absolute;left:17px;top:40px;bottom:0;width:2px;background:var(--slate);}\n .ro-wrap .stage-num{width:36px;height:36px;min-width:36px;max-width:36px;border-radius:50%;background:linear-gradient(135deg,var(--ocean),var(--sky));color:white;display:flex;align-items:center;justify-content:center;font-size:16px !important;font-weight:700;flex:0 0 36px;position:relative;z-index:1;margin-top:16px;}\n .ro-wrap .stage-body{background:var(--offwhite);border:1px solid var(--slate);border-radius:var(--radius);padding:16px 18px;margin-bottom:12px;flex:1 1 0;min-width:0;overflow:hidden;overflow-wrap:break-word;word-break:break-word;box-sizing:border-box;}\n .ro-wrap .stage-body h3{font-size:20px !important;font-weight:600;color:var(--deep);margin-bottom:8px;margin-top:6px;}\n .ro-wrap .stage-tag{display:block;font-size:12px !important;font-weight:700;letter-spacing:.04em;text-transform:uppercase;background:var(--slate);color:var(--ocean);padding:3px 8px;border-radius:4px;margin-bottom:8px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;max-width:100%;line-height:1.5 !important;box-sizing:border-box;}\n .ro-wrap .stage-body p{font-size:18px !important;color:var(--muted);line-height:1.6;margin:0;display:block;}\n .ro-wrap .stage-body .stage-part{font-size:15px !important;color:var(--sky);margin-top:6px;font-weight:500;}\n .ro-wrap .specs-table{width:100%;border-collapse:collapse;font-size:18px !important;}\n .ro-wrap .specs-table tr{border-bottom:1px solid var(--slate);}\n .ro-wrap .specs-table tr:last-child{border-bottom:none;}\n .ro-wrap .specs-table td{padding:11px 6px;vertical-align:top;}\n .ro-wrap .specs-table td:first-child{font-weight:500;color:var(--deep);width:44%;padding-right:16px;}\n .ro-wrap .specs-table td:last-child{color:var(--muted);}\n .ro-wrap .specs-table tr:hover td{background:var(--offwhite);}\n .ro-wrap .conditions-table{width:100%;border-collapse:collapse;font-size:18px !important;margin-top:4px;}\n .ro-wrap .conditions-table th{background:var(--deep);color:var(--white);font-size:15px !important;font-weight:600;letter-spacing:.06em;text-transform:uppercase;padding:10px 12px;text-align:left;}\n .ro-wrap .conditions-table th:first-child{border-radius:var(--radius) 0 0 0;}\n .ro-wrap .conditions-table th:last-child{border-radius:0 var(--radius) 0 0;}\n .ro-wrap .conditions-table td{padding:10px 12px;border-bottom:1px solid var(--slate);color:var(--text);}\n .ro-wrap .conditions-table 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p{font-size:15px !important;color:rgba(255,255,255,.65);line-height:1.55;margin:0;}\n .ro-wrap .faucet-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(min(200px,100%),1fr));gap:16px;margin-top:4px;}\n .ro-wrap .faucet-card{border:2px solid var(--slate);border-radius:var(--radius);padding:18px;text-align:center;}\n .ro-wrap .faucet-icon{font-size:28px !important;margin-bottom:10px;}\n .ro-wrap .faucet-card h4{font-size:18px !important;font-weight:600;color:var(--deep);margin-bottom:6px;}\n .ro-wrap .faucet-card p{font-size:15px !important;color:var(--muted);line-height:1.5;margin:0;}\n .ro-wrap .spec-cards{display:grid;grid-template-columns:repeat(auto-fill,minmax(min(180px,100%),1fr));gap:12px;margin-top:4px;}\n .ro-wrap .spec-card{background:var(--offwhite);border:1px solid var(--slate);border-radius:var(--radius);padding:16px;}\n .ro-wrap .spec-card .sc-label{font-size:13px !important;font-weight:700;letter-spacing:.08em;color:var(--sky);text-transform:uppercase;margin-bottom:4px;}\n .ro-wrap .spec-card .sc-value{font-size:20px !important;font-weight:600;color:var(--deep);margin-bottom:4px;}\n .ro-wrap .spec-card .sc-note{font-size:15px !important;color:var(--muted);}\n @media(max-width:640px){\n .ro-wrap .ro-hero{padding:36px 24px 32px;}\n .ro-wrap .ro-section{padding:28px 20px;}\n .ro-wrap .ro-feature-grid,.ro-wrap .faucet-grid,.ro-wrap .filter-schedule,.ro-wrap .spec-cards{grid-template-columns:1fr;}\n .ro-wrap .benefits-strip{flex-direction:column;}\n .ro-wrap .benefit-item{border-right:none;border-bottom:1px solid rgba(255,255,255,.1);}\n }\n \/* ── Nuclear override — force all text inside ro-wrap to be readable ── *\/\n .ro-wrap p,\n .ro-wrap li,\n .ro-wrap td,\n .ro-wrap th,\n .ro-wrap .ro-section \u003e p {\n font-size: 18px !important;\n line-height: 1.6 !important;\n }\n .ro-wrap .ro-section \u003e p,\n .ro-wrap .ro-callout p,\n .ro-wrap .stage-body p,\n .ro-wrap .ro-feature-card p,\n .ro-wrap .schedule-card p,\n .ro-wrap .faucet-card p,\n .ro-wrap .spec-card .sc-note,\n .ro-wrap .pro-tip p {\n font-size: 18px !important;\n line-height: 1.6 !important;\n }\n .ro-wrap h2 { font-size: clamp(26px,4vw,40px) !important; line-height:1.15 !important; }\n .ro-wrap h3 { font-size: 20px !important; line-height:1.3 !important; }\n .ro-wrap h4 { font-size: 18px !important; line-height:1.3 !important; }\n .ro-wrap .ro-label,\n .ro-wrap .stage-tag,\n .ro-wrap .sc-label { font-size: 14px !important; }\n .ro-wrap .ro-title { font-size: 24px !important; }\n .ro-wrap .interval { font-size: 22px !important; }\n .ro-wrap .stage-num { font-size: 16px !important; }\n .ro-wrap .ro-eyebrow { font-size: 14px !important; }\n .ro-wrap .ro-badge { font-size: 15px !important; }\n\u003c\/style\u003e\n\u003cdiv class=\"ro-wrap\"\u003e\n \u003cdiv class=\"ro-hero\"\u003e\n \u003cdiv class=\"ro-eyebrow\"\u003eWatts Premier Complete Replacement Kit\u003c\/div\u003e\n \u003ch2\u003eW-2R-2Y-1B-1G RO Pure 6-Pack Filter Set\u003c\/h2\u003e\n \u003cdiv class=\"ro-tagline\"\u003eFull-year replacement bundle with 50 GPD membrane and four-stage carbon filtration\u003c\/div\u003e\n \u003cdiv class=\"ro-badges\"\u003e\n \u003cspan class=\"ro-badge\"\u003eNSF Carbon\u003c\/span\u003e\n \u003cspan class=\"ro-badge\"\u003e50 GPD Membrane\u003c\/span\u003e\n \u003cspan class=\"ro-badge\"\u003e5-Micron Filtration\u003c\/span\u003e\n \u003cspan class=\"ro-badge\"\u003eWatts Premier 105331\u003c\/span\u003e\n \u003c\/div\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"ro-callout\"\u003e\n \u003cp\u003eThis six-pack replacement kit (model W-2R-2Y-1B-1G) includes everything needed to maintain a Watts Premier RO Pure system for a full filtration cycle. You get two sediment pre-filters, two carbon block pre-filters, one 50 gallon-per-day reverse osmosis membrane, and one polishing post-filter—all genuine Watts components engineered to match original equipment specifications.\u003c\/p\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"ro-section\"\u003e\n \u003cdiv class=\"ro-label\"\u003eHOW IT WORKS\u003c\/div\u003e\n \u003ch2 class=\"ro-title\"\u003eFive-Stage Reverse Osmosis Filtration\u003c\/h2\u003e\n \u003cdiv class=\"stage-pipeline\"\u003e\n \u003cdiv class=\"stage-row\"\u003e\n \u003cdiv class=\"stage-line\"\u003e\u003c\/div\u003e\n \u003cdiv class=\"stage-num\"\u003e1\u003c\/div\u003e\n \u003cdiv class=\"stage-body\"\u003e\n \u003cspan class=\"stage-tag\"\u003eSEDIMENT\u003c\/span\u003e\n \u003ch3\u003ePre-Filter: Sediment Removal\u003c\/h3\u003e\n \u003cp\u003eTwo 5-micron sediment filters trap dirt, rust, sand, silt, and suspended particles before they reach downstream components.\u003c\/p\u003e\n \u003cspan class=\"stage-part\"\u003eReplace every 6–12 months\u003c\/span\u003e\n \u003c\/div\u003e\n \u003c\/div\u003e\n \u003cdiv class=\"stage-row\"\u003e\n \u003cdiv class=\"stage-line\"\u003e\u003c\/div\u003e\n \u003cdiv class=\"stage-num\"\u003e2\u003c\/div\u003e\n \u003cdiv class=\"stage-body\"\u003e\n \u003cspan class=\"stage-tag\"\u003eCARBON\u003c\/span\u003e\n \u003ch3\u003ePre-Filter: Chlorine \u0026amp; Taste Reduction\u003c\/h3\u003e\n \u003cp\u003eTwo NSF-certified coconut shell activated carbon block filters reduce chlorine, bad tastes, and odors while protecting the RO membrane from chemical damage.\u003c\/p\u003e\n \u003cspan class=\"stage-part\"\u003eReplace every 6–12 months\u003c\/span\u003e\n \u003c\/div\u003e\n \u003c\/div\u003e\n \u003cdiv class=\"stage-row\"\u003e\n \u003cdiv class=\"stage-line\"\u003e\u003c\/div\u003e\n \u003cdiv class=\"stage-num\"\u003e3\u003c\/div\u003e\n \u003cdiv class=\"stage-body\"\u003e\n \u003cspan class=\"stage-tag\"\u003eMEMBRANE\u003c\/span\u003e\n \u003ch3\u003eRO Membrane: Contaminant Rejection\u003c\/h3\u003e\n \u003cp\u003eWatts Premier 105331 reverse osmosis membrane rated at 50 gallons per day removes dissolved solids, heavy metals, and microscopic contaminants.\u003c\/p\u003e\n \u003cspan class=\"stage-part\"\u003eReplace every 2–3 years\u003c\/span\u003e\n \u003c\/div\u003e\n \u003c\/div\u003e\n \u003cdiv class=\"stage-row\"\u003e\n \u003cdiv class=\"stage-line\"\u003e\u003c\/div\u003e\n \u003cdiv class=\"stage-num\"\u003e4\u003c\/div\u003e\n \u003cdiv class=\"stage-body\"\u003e\n \u003cspan class=\"stage-tag\"\u003ePOLISH\u003c\/span\u003e\n \u003ch3\u003ePost-Filter: Final Carbon Polish\u003c\/h3\u003e\n \u003cp\u003eFinal carbon block filter removes any residual taste or odor from stored water, ensuring clean, fresh flavor at the faucet.\u003c\/p\u003e\n \u003cspan class=\"stage-part\"\u003eReplace every 12 months\u003c\/span\u003e\n \u003c\/div\u003e\n \u003c\/div\u003e\n \u003c\/div\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"ro-section\"\u003e\n \u003cdiv class=\"ro-label\"\u003eCOMPATIBILITY\u003c\/div\u003e\n \u003ch2 class=\"ro-title\"\u003eDesigned for Watts Premier RO Pure Systems\u003c\/h2\u003e\n \u003cp\u003eThis replacement kit is engineered specifically for Watts Premier RO Pure reverse osmosis systems. All components meet original equipment manufacturer specifications and include the genuine Watts Premier 105331 membrane. Confirm your system model before ordering to ensure proper fit and performance.\u003c\/p\u003e\n \u003c\/div\u003e\n\u003c\/div\u003e","brand":"Isopure Water","offers":[{"title":"Default Title","offer_id":35474036588706,"sku":"Premier (2) R (2) Y (1) G (1) B","price":229.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0446\/7677\/6098\/files\/product-5537382465698-padded.jpg?v=1777271403"},{"product_id":"watts-wqc4ro-filterkit-kwik-change-11-pre-and-post-filter-and-membrane-replacement-4-pack","title":"Watts (WQC4RO-FILTERKIT) Kwik Change 11\" Pre- and Post- Filter and Membrane Replacement 4 Pack","description":"\n\u003clink href=\"https:\/\/fonts.googleapis.com\/css2?family=DM+Serif+Display:ital@0;1\u0026amp;family=DM+Sans:wght@300;400;500;600\u0026amp;display=swap\" rel=\"stylesheet\"\u003e\n\u003cstyle\u003e\n .ro-wrap {\n --deep:#0a1628;--ocean:#0f3460;--blue:#1565c0;--sky:#2196f3;--aqua:#4dd0e1;\n --white:#ffffff;--offwhite:#f2f7fc;--slate:#dce8f5;--text:#0d1f38;--muted:#4a6280;\n --gold:#f59e0b;--radius:12px;\n font-family:'DM Sans',sans-serif;color:var(--text);line-height:1.6;-webkit-font-smoothing:antialiased;overflow-wrap:break-word;word-break:break-word;min-width:0;\n }\n .ro-wrap .ro-hero{background:linear-gradient(135deg,var(--deep) 0%,var(--ocean) 50%,#1a5276 100%);color:var(--white);padding:52px 40px 44px;position:relative;overflow:hidden;border-radius:var(--radius) var(--radius) 0 0;}\n .ro-wrap .ro-hero::before{content:'';position:absolute;inset:0;background:radial-gradient(ellipse 70% 55% at 95% 45%,rgba(77,208,225,.15) 0%,transparent 65%),radial-gradient(ellipse 40% 40% at 5% 80%,rgba(255,255,255,.05) 0%,transparent 60%);pointer-events:none;}\n .ro-wrap .ro-eyebrow{font-size:13px !important;font-weight:600;letter-spacing:.18em;text-transform:uppercase;color:var(--aqua);margin-bottom:12px;}\n .ro-wrap .ro-hero h2{font-family:'DM Serif Display',serif;font-size:clamp(26px,4vw,40px) !important;line-height:1.15;font-weight:400;margin-bottom:16px;color:var(--white);}\n .ro-wrap .ro-hero h2 em{font-style:italic;color:var(--aqua);}\n .ro-wrap .ro-tagline{font-size:18px !important;color:rgba(255,255,255,.75);font-weight:300;margin-bottom:28px;}\n .ro-wrap .ro-badges{display:flex;flex-wrap:wrap;gap:10px;}\n .ro-wrap .ro-badge{display:inline-flex;align-items:center;gap:6px;background:rgba(255,255,255,.12);border:1px solid rgba(255,255,255,.2);color:var(--white);font-size:15px !important;font-weight:500;padding:6px 14px;border-radius:40px;backdrop-filter:blur(6px);}\n .ro-wrap .ro-callout{background:var(--offwhite);border-left:4px solid var(--sky);padding:20px 24px;}\n .ro-wrap .ro-callout p{font-size:18px !important;color:var(--text);line-height:1.7;margin:0;}\n .ro-wrap .ro-callout strong{color:var(--ocean);}\n .ro-wrap .ro-section{padding:36px 40px;border-bottom:1px solid var(--slate);}\n .ro-wrap .ro-label{font-size:13px !important;font-weight:700;letter-spacing:.2em;text-transform:uppercase;color:var(--sky);margin-bottom:8px;}\n .ro-wrap .ro-title{font-family:'DM Serif Display',serif;font-size:24px !important;color:var(--deep);margin-bottom:20px;font-weight:400;}\n .ro-wrap .stage-pipeline{display:flex;flex-direction:column;gap:0;margin-top:4px;}\n .ro-wrap .stage-row{display:flex;flex-direction:row;gap:12px;position:relative;min-width:0;align-items:flex-start;width:100%;box-sizing:border-box;}\n .ro-wrap .stage-row:not(:last-child) .stage-line{position:absolute;left:17px;top:40px;bottom:0;width:2px;background:var(--slate);}\n .ro-wrap .stage-num{width:36px;height:36px;min-width:36px;max-width:36px;border-radius:50%;background:linear-gradient(135deg,var(--ocean),var(--sky));color:white;display:flex;align-items:center;justify-content:center;font-size:16px !important;font-weight:700;flex:0 0 36px;position:relative;z-index:1;margin-top:16px;}\n .ro-wrap .stage-body{background:var(--offwhite);border:1px solid var(--slate);border-radius:var(--radius);padding:16px 18px;margin-bottom:12px;flex:1 1 0;min-width:0;overflow:hidden;overflow-wrap:break-word;word-break:break-word;box-sizing:border-box;}\n .ro-wrap .stage-body h3{font-size:20px !important;font-weight:600;color:var(--deep);margin-bottom:8px;margin-top:6px;}\n .ro-wrap .stage-tag{display:block;font-size:12px !important;font-weight:700;letter-spacing:.04em;text-transform:uppercase;background:var(--slate);color:var(--ocean);padding:3px 8px;border-radius:4px;margin-bottom:8px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;max-width:100%;line-height:1.5 !important;box-sizing:border-box;}\n .ro-wrap .stage-body p{font-size:18px !important;color:var(--muted);line-height:1.6;margin:0;display:block;}\n .ro-wrap .stage-body .stage-part{font-size:15px !important;color:var(--sky);margin-top:6px;font-weight:500;}\n .ro-wrap .specs-table{width:100%;border-collapse:collapse;font-size:18px !important;}\n .ro-wrap .specs-table tr{border-bottom:1px solid var(--slate);}\n .ro-wrap .specs-table tr:last-child{border-bottom:none;}\n .ro-wrap .specs-table td{padding:11px 6px;vertical-align:top;}\n .ro-wrap .specs-table td:first-child{font-weight:500;color:var(--deep);width:44%;padding-right:16px;}\n .ro-wrap .specs-table td:last-child{color:var(--muted);}\n .ro-wrap .specs-table tr:hover td{background:var(--offwhite);}\n .ro-wrap .conditions-table{width:100%;border-collapse:collapse;font-size:18px !important;margin-top:4px;}\n .ro-wrap .conditions-table th{background:var(--deep);color:var(--white);font-size:15px !important;font-weight:600;letter-spacing:.06em;text-transform:uppercase;padding:10px 12px;text-align:left;}\n .ro-wrap .conditions-table th:first-child{border-radius:var(--radius) 0 0 0;}\n .ro-wrap .conditions-table th:last-child{border-radius:0 var(--radius) 0 0;}\n .ro-wrap .conditions-table td{padding:10px 12px;border-bottom:1px solid var(--slate);color:var(--text);}\n .ro-wrap .conditions-table tr:nth-child(even) td{background:var(--offwhite);}\n .ro-wrap .ro-feature-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(min(220px,100%),1fr));gap:16px;margin-top:4px;}\n .ro-wrap .ro-feature-card{background:var(--offwhite);border:1px solid var(--slate);border-radius:var(--radius);padding:20px 18px;}\n .ro-wrap .ro-feat-icon{width:40px;height:40px;background:linear-gradient(135deg,var(--ocean),var(--sky));border-radius:10px;display:flex;align-items:center;justify-content:center;margin-bottom:12px;}\n .ro-wrap .ro-feature-card h3{font-size:20px !important;font-weight:600;color:var(--deep);margin-bottom:6px;}\n .ro-wrap .ro-feature-card p{font-size:18px !important;color:var(--muted);line-height:1.55;margin:0;}\n .ro-wrap .pro-tip{display:block;background:#fffbeb;border:1px solid #f5d87a;border-radius:var(--radius);padding:18px 20px;margin-top:20px;box-sizing:border-box;width:100% !important;}\n .ro-wrap .pro-tip-icon{font-size:22px !important;display:inline;margin-right:8px;line-height:1.6 !important;}\n .ro-wrap .pro-tip p{font-size:18px !important;color:#5a4500;line-height:1.6 !important;margin:0;display:block;width:100%;}\n .ro-wrap .pro-tip strong{color:#3d2e00;}\n .ro-wrap .install-steps{counter-reset:step;list-style:none;padding:0;margin:4px 0 0;display:flex;flex-direction:column;gap:14px;}\n .ro-wrap .install-steps li{counter-increment:step;display:flex;align-items:flex-start;gap:14px;font-size:18px !important;color:var(--text);}\n .ro-wrap .install-steps li::before{content:counter(step);display:flex;align-items:center;justify-content:center;width:28px;height:28px;border-radius:50%;background:var(--ocean);color:white;font-size:15px !important;font-weight:700;flex-shrink:0;margin-top:1px;}\n .ro-wrap .filter-schedule{display:grid;grid-template-columns:repeat(auto-fill,minmax(min(180px,100%),1fr));gap:12px;margin-top:4px;}\n .ro-wrap .schedule-card{background:var(--offwhite);border:1px solid var(--slate);border-radius:var(--radius);padding:16px;}\n .ro-wrap .schedule-card .interval{font-size:22px !important;font-family:'DM Serif Display',serif;color:var(--sky);font-weight:400;margin-bottom:4px;}\n .ro-wrap .schedule-card h4{font-size:18px !important;font-weight:600;color:var(--deep);margin-bottom:4px;}\n .ro-wrap .schedule-card p{font-size:15px !important;color:var(--muted);margin:0;line-height:1.45;}\n .ro-wrap .benefits-strip{display:flex;flex-wrap:wrap;background:var(--deep);color:var(--white);border-radius:0 0 var(--radius) var(--radius);overflow:hidden;}\n .ro-wrap .benefit-item{flex:1 1 200px;padding:24px 22px;border-right:1px solid rgba(255,255,255,.1);}\n .ro-wrap .benefit-item:last-child{border-right:none;}\n .ro-wrap .bi-icon{font-size:22px !important;margin-bottom:10px;}\n .ro-wrap .benefit-item h4{font-size:15px !important;font-weight:600;color:var(--aqua);margin-bottom:5px;text-transform:uppercase;letter-spacing:.05em;}\n .ro-wrap .benefit-item p{font-size:15px !important;color:rgba(255,255,255,.65);line-height:1.55;margin:0;}\n .ro-wrap .faucet-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(min(200px,100%),1fr));gap:16px;margin-top:4px;}\n .ro-wrap .faucet-card{border:2px solid var(--slate);border-radius:var(--radius);padding:18px;text-align:center;}\n .ro-wrap .faucet-icon{font-size:28px !important;margin-bottom:10px;}\n .ro-wrap .faucet-card h4{font-size:18px !important;font-weight:600;color:var(--deep);margin-bottom:6px;}\n .ro-wrap .faucet-card p{font-size:15px !important;color:var(--muted);line-height:1.5;margin:0;}\n .ro-wrap .spec-cards{display:grid;grid-template-columns:repeat(auto-fill,minmax(min(180px,100%),1fr));gap:12px;margin-top:4px;}\n .ro-wrap .spec-card{background:var(--offwhite);border:1px solid var(--slate);border-radius:var(--radius);padding:16px;}\n .ro-wrap .spec-card .sc-label{font-size:13px !important;font-weight:700;letter-spacing:.08em;color:var(--sky);text-transform:uppercase;margin-bottom:4px;}\n .ro-wrap .spec-card .sc-value{font-size:20px !important;font-weight:600;color:var(--deep);margin-bottom:4px;}\n .ro-wrap .spec-card .sc-note{font-size:15px !important;color:var(--muted);}\n @media(max-width:640px){\n .ro-wrap .ro-hero{padding:36px 24px 32px;}\n .ro-wrap .ro-section{padding:28px 20px;}\n .ro-wrap .ro-feature-grid,.ro-wrap .faucet-grid,.ro-wrap .filter-schedule,.ro-wrap .spec-cards{grid-template-columns:1fr;}\n .ro-wrap .benefits-strip{flex-direction:column;}\n .ro-wrap .benefit-item{border-right:none;border-bottom:1px solid rgba(255,255,255,.1);}\n }\n \/* ── Nuclear override — force all text inside ro-wrap to be readable ── *\/\n .ro-wrap p,\n .ro-wrap li,\n .ro-wrap td,\n .ro-wrap th,\n .ro-wrap .ro-section \u003e p {\n font-size: 18px !important;\n line-height: 1.6 !important;\n }\n .ro-wrap .ro-section \u003e p,\n .ro-wrap .ro-callout p,\n .ro-wrap .stage-body p,\n .ro-wrap .ro-feature-card p,\n .ro-wrap .schedule-card p,\n .ro-wrap .faucet-card p,\n .ro-wrap .spec-card .sc-note,\n .ro-wrap .pro-tip p {\n font-size: 18px !important;\n line-height: 1.6 !important;\n }\n .ro-wrap h2 { font-size: clamp(26px,4vw,40px) !important; line-height:1.15 !important; }\n .ro-wrap h3 { font-size: 20px !important; line-height:1.3 !important; }\n .ro-wrap h4 { font-size: 18px !important; line-height:1.3 !important; }\n .ro-wrap .ro-label,\n .ro-wrap .stage-tag,\n .ro-wrap .sc-label { font-size: 14px !important; }\n .ro-wrap .ro-title { font-size: 24px !important; }\n .ro-wrap .interval { font-size: 22px !important; }\n .ro-wrap .stage-num { font-size: 16px !important; }\n .ro-wrap .ro-eyebrow { font-size: 14px !important; }\n .ro-wrap .ro-badge { font-size: 15px !important; }\n\u003c\/style\u003e\n\u003cdiv class=\"ro-wrap\"\u003e\n\n\u003cdiv class=\"ro-hero\"\u003e\n\u003cdiv class=\"ro-eyebrow\"\u003eWatts Kwik-Change Complete Replacement Kit\u003c\/div\u003e\n\u003ch2\u003e\n\u003cem\u003eWQC4RO-FILTERKIT\u003c\/em\u003e 11\" Four-Stage Filter \u0026amp; Membrane Pack\u003c\/h2\u003e\n\u003cdiv class=\"ro-tagline\"\u003eComplete annual service kit for Watts Kwik-Change reverse osmosis systems — sediment, carbon block, membrane, and polishing cartridges in one package\u003c\/div\u003e\n\u003cdiv class=\"ro-badges\"\u003e\n\u003cspan class=\"ro-badge\"\u003e✓ Tool-Free Cartridge Changes\u003c\/span\u003e\n\u003cspan class=\"ro-badge\"\u003e✓ Internal Shut-Off Valves\u003c\/span\u003e\n\u003cspan class=\"ro-badge\"\u003e✓ Double O-Ring Leak Prevention\u003c\/span\u003e\n\u003cspan class=\"ro-badge\"\u003e✓ 50 GPD RO Membrane Included\u003c\/span\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"ro-callout\"\u003e\n\u003cp\u003eThe Watts WQC4RO-FILTERKIT delivers everything you need to service a Kwik-Change reverse osmosis system for a full year. This four-pack includes \u003cstrong\u003eWQCSC11 sediment pre-filter\u003c\/strong\u003e, \u003cstrong\u003eWQCCC11 carbon block\u003c\/strong\u003e, \u003cstrong\u003eWQCM11-50 membrane (50 GPD)\u003c\/strong\u003e, and \u003cstrong\u003eWQCGAC11 post-filter\u003c\/strong\u003e — all engineered with double O-rings and internal flow shut-off for leak-free, tool-free replacement every six months.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"ro-section\"\u003e\n\u003cdiv class=\"ro-label\"\u003eFILTRATION STAGES\u003c\/div\u003e\n\u003ch3 class=\"ro-title\"\u003eFour-Stage Reverse Osmosis Protection\u003c\/h3\u003e\n\u003cdiv class=\"stage-pipeline\"\u003e\n\u003cdiv class=\"stage-card\"\u003e\n\u003cspan class=\"stage-tag\"\u003eSEDIMENT\u003c\/span\u003e\n\u003ch4\u003eWQCSC11\u003c\/h4\u003e\n\u003cp\u003e5 micron nominal pre-filter removes dirt, rust, and sediment to protect downstream cartridges and membrane\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"stage-card\"\u003e\n\u003cspan class=\"stage-tag\"\u003eCARBON BLOCK\u003c\/span\u003e\n\u003ch4\u003eWQCCC11\u003c\/h4\u003e\n\u003cp\u003e10 micron carbon block reduces chlorine, taste, and odor before water reaches the membrane\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"stage-card\"\u003e\n\u003cspan class=\"stage-tag\"\u003eMEMBRANE\u003c\/span\u003e\n\u003ch4\u003eWQCM11-50\u003c\/h4\u003e\n\u003cp\u003e50 gallon-per-day reverse osmosis membrane removes dissolved solids, contaminants, and impurities\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"stage-card\"\u003e\n\u003cspan class=\"stage-tag\"\u003ePOLISH\u003c\/span\u003e\n\u003ch4\u003eWQCGAC11\u003c\/h4\u003e\n\u003cp\u003e10 micron granulated activated carbon post-filter for final taste and odor refinement\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"ro-section\"\u003e\n\u003cdiv class=\"ro-label\"\u003eKEY FEATURES\u003c\/div\u003e\n\u003ch3 class=\"ro-title\"\u003eKwik-Change Engineering Advantages\u003c\/h3\u003e\n\u003cdiv class=\"ro-feature-grid\"\u003e\n\u003cdiv class=\"ro-feature-card\"\u003e\n\u003cspan class=\"ro-feat-icon\"\u003e🔒\u003c\/span\u003e\n\u003ch3\u003eDouble O-Ring Seals\u003c\/h3\u003e\n\u003cp\u003eDual O-ring design on every cartridge eliminates leaks and ensures reliable sealing without tools or excessive force\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"ro-feature-card\"\u003e\n\u003cspan class=\"ro-feat-icon\"\u003e🚿\u003c\/span\u003e\n\u003ch3\u003eInternal Shut-Off Valves\u003c\/h3\u003e\n\u003cp\u003eBuilt-in flow control valves automatically stop water when cartridges are removed — no need to shut off supply lines\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"ro-feature-card\"\u003e\n\u003cspan class=\"ro-feat-icon\"\u003e⚡\u003c\/span\u003e\n\u003ch3\u003eTool-Free Replacement\u003c\/h3\u003e\n\u003cp\u003eQuarter-turn cartridge removal and installation with no wrenches, housing sumps, or complicated disassembly required\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"ro-feature-card\"\u003e\n\u003cspan class=\"ro-feat-icon\"\u003e📏\u003c\/span\u003e\n\u003ch3\u003eStandard 11\" Format\u003c\/h3\u003e\n\u003cp\u003eAll four cartridges use the same 11-inch Kwik-Change platform for uniform sizing and simplified inventory\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"ro-feature-card\"\u003e\n\u003cspan class=\"ro-feat-icon\"\u003e🔄\u003c\/span\u003e\n\u003ch3\u003eSix-Month Service Cycle\u003c\/h3\u003e\n\u003cp\u003eReplace pre- and post-filters every six months, membrane annually — this kit covers one full year of maintenance\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"ro-feature-card\"\u003e\n\u003cspan class=\"ro-feat-icon\"\u003e📦\u003c\/span\u003e\n\u003ch3\u003eComplete Kit Convenience\u003c\/h3\u003e\n\u003cp\u003eAll four stages in one package means no guessing on part numbers or ordering filters separately throughout the year\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"ro-section\"\u003e\n\u003cdiv class=\"ro-label\"\u003eCOMPATIBILITY \u0026amp; APPLICATIONS\u003c\/div\u003e\n\u003ch3 class=\"ro-title\"\u003eDesigned for Watts Kwik-Change RO Systems\u003c\/h3\u003e\n\u003cp\u003eThis WQC4RO-FILTERKIT is engineered specifically for Watts Kwik-Change reverse osmosis systems that use 11-inch cartridge housings. Compatible with systems requiring WQCSC11, WQCCC11, WQCM11-50, and WQCGAC11 replacement cartridges. Ideal for residential under-sink installations, whole-home RO systems, and light commercial applications where tool-free maintenance and leak prevention are priorities. Verify your system uses Kwik-Change 11\" cartridges before ordering.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"ro-callout\"\u003e\n\u003cp\u003eWatts has been engineering reliable water treatment solutions for decades, and the Kwik-Change platform reflects that commitment to quality and ease of service.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003c\/div\u003e","brand":"Watts","offers":[{"title":"Default Title","offer_id":35475051151522,"sku":"Birds 1R-1Y-1B-1G","price":228.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0446\/7677\/6098\/files\/product-5537684750498-padded.jpg?v=1791927544"},{"product_id":"compatible-with-replacement-filter-kit-for-watts-ro-tfm-5sv-ro-system-includes-carbon-block-filters-pp-sediment-filter-inline-filter-cartridge-by-ipw-industries-inc","title":"Compatible with Replacement Filter Kit for Watts RO-TFM-5SV RO System by IPW Industries","description":"\n\u003clink 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80%,rgba(255,255,255,.05) 0%,transparent 60%);pointer-events:none;}\n .ro-wrap .ro-eyebrow{font-size:13px !important;font-weight:600;letter-spacing:.18em;text-transform:uppercase;color:var(--aqua);margin-bottom:12px;}\n .ro-wrap .ro-hero h2{font-family:'DM Serif Display',serif;font-size:clamp(26px,4vw,40px) !important;line-height:1.15;font-weight:400;margin-bottom:16px;color:var(--white);}\n .ro-wrap .ro-hero h2 em{font-style:italic;color:var(--aqua);}\n .ro-wrap .ro-tagline{font-size:18px !important;color:rgba(255,255,255,.75);font-weight:300;margin-bottom:28px;}\n .ro-wrap .ro-badges{display:flex;flex-wrap:wrap;gap:10px;}\n .ro-wrap .ro-badge{display:inline-flex;align-items:center;gap:6px;background:rgba(255,255,255,.12);border:1px solid rgba(255,255,255,.2);color:var(--white);font-size:15px !important;font-weight:500;padding:6px 14px;border-radius:40px;backdrop-filter:blur(6px);}\n .ro-wrap .ro-callout{background:var(--offwhite);border-left:4px solid var(--sky);padding:20px 24px;}\n .ro-wrap .ro-callout p{font-size:18px !important;color:var(--text);line-height:1.7;margin:0;}\n .ro-wrap .ro-callout strong{color:var(--ocean);}\n .ro-wrap .ro-section{padding:36px 40px;border-bottom:1px solid var(--slate);}\n .ro-wrap .ro-label{font-size:13px !important;font-weight:700;letter-spacing:.2em;text-transform:uppercase;color:var(--sky);margin-bottom:8px;}\n .ro-wrap .ro-title{font-family:'DM Serif Display',serif;font-size:24px !important;color:var(--deep);margin-bottom:20px;font-weight:400;}\n .ro-wrap .stage-pipeline{display:flex;flex-direction:column;gap:0;margin-top:4px;}\n .ro-wrap .stage-row{display:flex;flex-direction:row;gap:12px;position:relative;min-width:0;align-items:flex-start;width:100%;box-sizing:border-box;}\n .ro-wrap .stage-row:not(:last-child) .stage-line{position:absolute;left:17px;top:40px;bottom:0;width:2px;background:var(--slate);}\n .ro-wrap .stage-num{width:36px;height:36px;min-width:36px;max-width:36px;border-radius:50%;background:linear-gradient(135deg,var(--ocean),var(--sky));color:white;display:flex;align-items:center;justify-content:center;font-size:16px !important;font-weight:700;flex:0 0 36px;position:relative;z-index:1;margin-top:16px;}\n .ro-wrap .stage-body{background:var(--offwhite);border:1px solid var(--slate);border-radius:var(--radius);padding:16px 18px;margin-bottom:12px;flex:1 1 0;min-width:0;overflow:hidden;overflow-wrap:break-word;word-break:break-word;box-sizing:border-box;}\n .ro-wrap .stage-body h3{font-size:20px !important;font-weight:600;color:var(--deep);margin-bottom:8px;margin-top:6px;}\n .ro-wrap .stage-tag{display:block;font-size:12px !important;font-weight:700;letter-spacing:.04em;text-transform:uppercase;background:var(--slate);color:var(--ocean);padding:3px 8px;border-radius:4px;margin-bottom:8px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;max-width:100%;line-height:1.5 !important;box-sizing:border-box;}\n .ro-wrap .stage-body p{font-size:18px !important;color:var(--muted);line-height:1.6;margin:0;display:block;}\n .ro-wrap .stage-body .stage-part{font-size:15px !important;color:var(--sky);margin-top:6px;font-weight:500;}\n .ro-wrap .specs-table{width:100%;border-collapse:collapse;font-size:18px !important;}\n .ro-wrap .specs-table tr{border-bottom:1px solid var(--slate);}\n .ro-wrap .specs-table tr:last-child{border-bottom:none;}\n .ro-wrap .specs-table td{padding:11px 6px;vertical-align:top;}\n .ro-wrap .specs-table td:first-child{font-weight:500;color:var(--deep);width:44%;padding-right:16px;}\n .ro-wrap .specs-table td:last-child{color:var(--muted);}\n .ro-wrap .specs-table tr:hover td{background:var(--offwhite);}\n .ro-wrap .conditions-table{width:100%;border-collapse:collapse;font-size:18px !important;margin-top:4px;}\n .ro-wrap .conditions-table th{background:var(--deep);color:var(--white);font-size:15px !important;font-weight:600;letter-spacing:.06em;text-transform:uppercase;padding:10px 12px;text-align:left;}\n .ro-wrap .conditions-table th:first-child{border-radius:var(--radius) 0 0 0;}\n .ro-wrap .conditions-table th:last-child{border-radius:0 var(--radius) 0 0;}\n .ro-wrap .conditions-table td{padding:10px 12px;border-bottom:1px solid var(--slate);color:var(--text);}\n .ro-wrap .conditions-table tr:nth-child(even) td{background:var(--offwhite);}\n .ro-wrap .ro-feature-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(min(220px,100%),1fr));gap:16px;margin-top:4px;}\n .ro-wrap .ro-feature-card{background:var(--offwhite);border:1px solid var(--slate);border-radius:var(--radius);padding:20px 18px;}\n .ro-wrap .ro-feat-icon{width:40px;height:40px;background:linear-gradient(135deg,var(--ocean),var(--sky));border-radius:10px;display:flex;align-items:center;justify-content:center;margin-bottom:12px;}\n .ro-wrap .ro-feature-card h3{font-size:20px !important;font-weight:600;color:var(--deep);margin-bottom:6px;}\n .ro-wrap .ro-feature-card p{font-size:18px !important;color:var(--muted);line-height:1.55;margin:0;}\n .ro-wrap .pro-tip{display:block;background:#fffbeb;border:1px solid #f5d87a;border-radius:var(--radius);padding:18px 20px;margin-top:20px;box-sizing:border-box;width:100% !important;}\n .ro-wrap .pro-tip-icon{font-size:22px !important;display:inline;margin-right:8px;line-height:1.6 !important;}\n .ro-wrap .pro-tip p{font-size:18px !important;color:#5a4500;line-height:1.6 !important;margin:0;display:block;width:100%;}\n .ro-wrap .pro-tip strong{color:#3d2e00;}\n .ro-wrap .install-steps{counter-reset:step;list-style:none;padding:0;margin:4px 0 0;display:flex;flex-direction:column;gap:14px;}\n .ro-wrap .install-steps li{counter-increment:step;display:flex;align-items:flex-start;gap:14px;font-size:18px !important;color:var(--text);}\n .ro-wrap .install-steps li::before{content:counter(step);display:flex;align-items:center;justify-content:center;width:28px;height:28px;border-radius:50%;background:var(--ocean);color:white;font-size:15px !important;font-weight:700;flex-shrink:0;margin-top:1px;}\n .ro-wrap .filter-schedule{display:grid;grid-template-columns:repeat(auto-fill,minmax(min(180px,100%),1fr));gap:12px;margin-top:4px;}\n .ro-wrap .schedule-card{background:var(--offwhite);border:1px solid var(--slate);border-radius:var(--radius);padding:16px;}\n .ro-wrap .schedule-card .interval{font-size:22px !important;font-family:'DM Serif Display',serif;color:var(--sky);font-weight:400;margin-bottom:4px;}\n .ro-wrap .schedule-card h4{font-size:18px !important;font-weight:600;color:var(--deep);margin-bottom:4px;}\n .ro-wrap .schedule-card p{font-size:15px !important;color:var(--muted);margin:0;line-height:1.45;}\n .ro-wrap .benefits-strip{display:flex;flex-wrap:wrap;background:var(--deep);color:var(--white);border-radius:0 0 var(--radius) var(--radius);overflow:hidden;}\n .ro-wrap .benefit-item{flex:1 1 200px;padding:24px 22px;border-right:1px solid rgba(255,255,255,.1);}\n .ro-wrap .benefit-item:last-child{border-right:none;}\n .ro-wrap .bi-icon{font-size:22px !important;margin-bottom:10px;}\n .ro-wrap .benefit-item h4{font-size:15px !important;font-weight:600;color:var(--aqua);margin-bottom:5px;text-transform:uppercase;letter-spacing:.05em;}\n .ro-wrap .benefit-item p{font-size:15px !important;color:rgba(255,255,255,.65);line-height:1.55;margin:0;}\n .ro-wrap .faucet-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(min(200px,100%),1fr));gap:16px;margin-top:4px;}\n .ro-wrap .faucet-card{border:2px solid var(--slate);border-radius:var(--radius);padding:18px;text-align:center;}\n .ro-wrap .faucet-icon{font-size:28px !important;margin-bottom:10px;}\n .ro-wrap .faucet-card h4{font-size:18px !important;font-weight:600;color:var(--deep);margin-bottom:6px;}\n .ro-wrap .faucet-card p{font-size:15px !important;color:var(--muted);line-height:1.5;margin:0;}\n .ro-wrap .spec-cards{display:grid;grid-template-columns:repeat(auto-fill,minmax(min(180px,100%),1fr));gap:12px;margin-top:4px;}\n .ro-wrap .spec-card{background:var(--offwhite);border:1px solid var(--slate);border-radius:var(--radius);padding:16px;}\n .ro-wrap .spec-card .sc-label{font-size:13px !important;font-weight:700;letter-spacing:.08em;color:var(--sky);text-transform:uppercase;margin-bottom:4px;}\n .ro-wrap .spec-card .sc-value{font-size:20px !important;font-weight:600;color:var(--deep);margin-bottom:4px;}\n .ro-wrap .spec-card .sc-note{font-size:15px !important;color:var(--muted);}\n @media(max-width:640px){\n .ro-wrap .ro-hero{padding:36px 24px 32px;}\n .ro-wrap .ro-section{padding:28px 20px;}\n .ro-wrap .ro-feature-grid,.ro-wrap .faucet-grid,.ro-wrap .filter-schedule,.ro-wrap .spec-cards{grid-template-columns:1fr;}\n .ro-wrap .benefits-strip{flex-direction:column;}\n .ro-wrap .benefit-item{border-right:none;border-bottom:1px solid rgba(255,255,255,.1);}\n }\n \/* ── Nuclear override — force all text inside ro-wrap to be readable ── *\/\n .ro-wrap p,\n .ro-wrap li,\n .ro-wrap td,\n .ro-wrap th,\n .ro-wrap .ro-section \u003e p {\n font-size: 18px !important;\n line-height: 1.6 !important;\n }\n .ro-wrap .ro-section \u003e p,\n .ro-wrap .ro-callout p,\n .ro-wrap .stage-body p,\n .ro-wrap .ro-feature-card p,\n .ro-wrap .schedule-card p,\n .ro-wrap .faucet-card p,\n .ro-wrap .spec-card .sc-note,\n .ro-wrap .pro-tip p {\n font-size: 18px !important;\n line-height: 1.6 !important;\n }\n .ro-wrap h2 { font-size: clamp(26px,4vw,40px) !important; line-height:1.15 !important; }\n .ro-wrap h3 { font-size: 20px !important; line-height:1.3 !important; }\n .ro-wrap h4 { font-size: 18px !important; line-height:1.3 !important; }\n .ro-wrap .ro-label,\n .ro-wrap .stage-tag,\n .ro-wrap .sc-label { font-size: 14px !important; }\n .ro-wrap .ro-title { font-size: 24px !important; }\n .ro-wrap .interval { font-size: 22px !important; }\n .ro-wrap .stage-num { font-size: 16px !important; }\n .ro-wrap .ro-eyebrow { font-size: 14px !important; }\n .ro-wrap .ro-badge { font-size: 15px !important; }\n\u003c\/style\u003e\n\u003cdiv class=\"ro-wrap\"\u003e\n\n\u003cdiv class=\"ro-callout\"\u003e\nThis complete five-stage replacement filter kit delivers comprehensive filtration for Watts RO-TFM-5SV, WP-5, and WP5-50 reverse osmosis systems with two carbon block pre-filters, one sediment pre-filter, and one inline GAC polishing filter. Manufactured by IPW Industries as a compatible alternative, this kit provides 12 months of protection against sediment, chlorine, taste and odor issues while maintaining beneficial mineral content.\n\u003c\/div\u003e\n\n\u003cdiv class=\"ro-section\"\u003e\n\u003cdiv class=\"ro-label\"\u003eSPECIFICATIONS\u003c\/div\u003e\n\u003ch2 class=\"ro-title\"\u003eFilter Kit Configuration\u003c\/h2\u003e\n\u003cdiv class=\"spec-cards\"\u003e\n\u003cdiv class=\"spec-card\"\u003e\n\u003cdiv class=\"sc-label\"\u003eKit Contents\u003c\/div\u003e\n\u003cdiv class=\"sc-value\"\u003e4 Filters\u003c\/div\u003e\n\u003cdiv class=\"sc-note\"\u003eComplete annual replacement set\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"spec-card\"\u003e\n\u003cdiv class=\"sc-label\"\u003eCarbon Block Pre-Filters\u003c\/div\u003e\n\u003cdiv class=\"sc-value\"\u003e2 × 5 Micron\u003c\/div\u003e\n\u003cdiv class=\"sc-note\"\u003eChlorine and taste reduction\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"spec-card\"\u003e\n\u003cdiv class=\"sc-label\"\u003eSediment Pre-Filter\u003c\/div\u003e\n\u003cdiv class=\"sc-value\"\u003e1 × 5 Micron\u003c\/div\u003e\n\u003cdiv class=\"sc-note\"\u003eParticulate and turbidity removal\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"spec-card\"\u003e\n\u003cdiv class=\"sc-label\"\u003eInline Polishing Filter\u003c\/div\u003e\n\u003cdiv class=\"sc-value\"\u003e1 × 10\" GAC\u003c\/div\u003e\n\u003cdiv class=\"sc-note\"\u003ePost-tank final stage\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"spec-card\"\u003e\n\u003cdiv class=\"sc-label\"\u003eFilter Dimensions\u003c\/div\u003e\n\u003cdiv class=\"sc-value\"\u003e10 Inch\u003c\/div\u003e\n\u003cdiv class=\"sc-note\"\u003eStandard housing compatibility\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"spec-card\"\u003e\n\u003cdiv class=\"sc-label\"\u003eReplacement Cycle\u003c\/div\u003e\n\u003cdiv class=\"sc-value\"\u003e12 Months\u003c\/div\u003e\n\u003cdiv class=\"sc-note\"\u003eTypical residential usage\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"ro-section\"\u003e\n\u003cdiv class=\"ro-label\"\u003eTECHNICAL DETAILS\u003c\/div\u003e\n\u003ch2 class=\"ro-title\"\u003eFilter Media \u0026amp; Performance\u003c\/h2\u003e\n\u003ctable class=\"specs-table\"\u003e\n\u003ctr\u003e\n\u003ctd\u003eManufacturer\u003c\/td\u003e\n\u003ctd\u003eIPW Industries Inc\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct Type\u003c\/td\u003e\n\u003ctd\u003eCompatible replacement filter kit for five-stage RO systems\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSediment Filter Material\u003c\/td\u003e\n\u003ctd\u003ePolypropylene wound or pleated media, 5 micron nominal rating\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCarbon Block Filter Material\u003c\/td\u003e\n\u003ctd\u003eActivated carbon block, 5 micron nominal rating, chlorine reduction\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInline Filter Material\u003c\/td\u003e\n\u003ctd\u003eGranular activated carbon (GAC), 10 inch inline post-filter cartridge\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eContaminant Reduction\u003c\/td\u003e\n\u003ctd\u003eChlorine, sediment, silt, rust, odor, taste, particulate matter down to 5 microns\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRecommended Replacement\u003c\/td\u003e\n\u003ctd\u003eEvery 12 months or sooner depending on water quality and usage volume\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"ro-section\"\u003e\n\u003cdiv class=\"ro-label\"\u003eCOMPATIBILITY \u0026amp; APPLICATIONS\u003c\/div\u003e\n\u003ch2 class=\"ro-title\"\u003eSystem Compatibility\u003c\/h2\u003e\n\u003cp\u003eThis IPW Industries filter kit is designed as a compatible replacement for Watts Premier RO-TFM-5SV, WP-5, and WP5-50 five-stage reverse osmosis systems. The kit includes all pre-filters and the post-membrane inline polishing filter, but does not include the RO membrane itself. Compatible with standard 10 inch filter housings used in Watts Premier systems and other residential reverse osmosis configurations with similar filter dimensions. Ideal for annual maintenance of under-sink RO systems in residential, light commercial, and office applications. The sediment pre-filter protects downstream filters and the membrane from particulate fouling, while dual carbon block filters address chlorine and organics that can damage TFC membranes. The inline GAC filter provides final taste and odor polishing after the storage tank.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"pro-tip\"\u003e\n💧 \u003cstrong\u003ePro Tip:\u003c\/strong\u003e Replace pre-filters and inline filters annually even if flow rate seems adequate. Carbon block filters lose chemical adsorption capacity before you notice pressure drop, and exhausted carbon can no longer protect your RO membrane from chlorine damage. Mark your calendar and keep a spare kit on hand to avoid lapses in filtration performance.\n\u003c\/div\u003e\n\n\u003c\/div\u003e","brand":"IPW Industries Inc","offers":[{"title":"Default Title","offer_id":35475068747938,"sku":"(2) CBCO-10-5 (1) SC25-1005 (1) Inline","price":21.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0446\/7677\/6098\/files\/product-5537695596706-padded.jpg?v=1777261809"},{"product_id":"compatible-to-watts-premier-560032-four-stage-standard-annual-comparable-filter-kit","title":"Compatible to Watts Premier 560032 Four-Stage Standard Annual Comparable Filter Kit","description":"\n\u003clink href=\"https:\/\/fonts.googleapis.com\/css2?family=DM+Serif+Display:ital@0;1\u0026amp;family=DM+Sans:wght@300;400;500;600\u0026amp;display=swap\" rel=\"stylesheet\"\u003e\n\u003cstyle\u003e\n .ro-wrap {\n --deep:#0a1628;--ocean:#0f3460;--blue:#1565c0;--sky:#2196f3;--aqua:#4dd0e1;\n 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tr{border-bottom:1px solid var(--slate);}\n .ro-wrap .specs-table tr:last-child{border-bottom:none;}\n .ro-wrap .specs-table td{padding:11px 6px;vertical-align:top;}\n .ro-wrap .specs-table td:first-child{font-weight:500;color:var(--deep);width:44%;padding-right:16px;}\n .ro-wrap .specs-table td:last-child{color:var(--muted);}\n .ro-wrap .specs-table tr:hover td{background:var(--offwhite);}\n .ro-wrap .conditions-table{width:100%;border-collapse:collapse;font-size:18px !important;margin-top:4px;}\n .ro-wrap .conditions-table th{background:var(--deep);color:var(--white);font-size:15px !important;font-weight:600;letter-spacing:.06em;text-transform:uppercase;padding:10px 12px;text-align:left;}\n .ro-wrap .conditions-table th:first-child{border-radius:var(--radius) 0 0 0;}\n .ro-wrap .conditions-table th:last-child{border-radius:0 var(--radius) 0 0;}\n .ro-wrap .conditions-table td{padding:10px 12px;border-bottom:1px solid var(--slate);color:var(--text);}\n .ro-wrap .conditions-table 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var(--slate);border-radius:var(--radius);padding:16px;}\n .ro-wrap .schedule-card .interval{font-size:22px !important;font-family:'DM Serif Display',serif;color:var(--sky);font-weight:400;margin-bottom:4px;}\n .ro-wrap .schedule-card h4{font-size:18px !important;font-weight:600;color:var(--deep);margin-bottom:4px;}\n .ro-wrap .schedule-card p{font-size:15px !important;color:var(--muted);margin:0;line-height:1.45;}\n .ro-wrap .benefits-strip{display:flex;flex-wrap:wrap;background:var(--deep);color:var(--white);border-radius:0 0 var(--radius) var(--radius);overflow:hidden;}\n .ro-wrap .benefit-item{flex:1 1 200px;padding:24px 22px;border-right:1px solid rgba(255,255,255,.1);}\n .ro-wrap .benefit-item:last-child{border-right:none;}\n .ro-wrap .bi-icon{font-size:22px !important;margin-bottom:10px;}\n .ro-wrap .benefit-item h4{font-size:15px !important;font-weight:600;color:var(--aqua);margin-bottom:5px;text-transform:uppercase;letter-spacing:.05em;}\n .ro-wrap .benefit-item p{font-size:15px !important;color:rgba(255,255,255,.65);line-height:1.55;margin:0;}\n .ro-wrap .faucet-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(min(200px,100%),1fr));gap:16px;margin-top:4px;}\n .ro-wrap .faucet-card{border:2px solid var(--slate);border-radius:var(--radius);padding:18px;text-align:center;}\n .ro-wrap .faucet-icon{font-size:28px !important;margin-bottom:10px;}\n .ro-wrap .faucet-card h4{font-size:18px !important;font-weight:600;color:var(--deep);margin-bottom:6px;}\n .ro-wrap .faucet-card p{font-size:15px !important;color:var(--muted);line-height:1.5;margin:0;}\n .ro-wrap .spec-cards{display:grid;grid-template-columns:repeat(auto-fill,minmax(min(180px,100%),1fr));gap:12px;margin-top:4px;}\n .ro-wrap .spec-card{background:var(--offwhite);border:1px solid var(--slate);border-radius:var(--radius);padding:16px;}\n .ro-wrap .spec-card .sc-label{font-size:13px !important;font-weight:700;letter-spacing:.08em;color:var(--sky);text-transform:uppercase;margin-bottom:4px;}\n .ro-wrap .spec-card .sc-value{font-size:20px !important;font-weight:600;color:var(--deep);margin-bottom:4px;}\n .ro-wrap .spec-card .sc-note{font-size:15px !important;color:var(--muted);}\n @media(max-width:640px){\n .ro-wrap .ro-hero{padding:36px 24px 32px;}\n .ro-wrap .ro-section{padding:28px 20px;}\n .ro-wrap .ro-feature-grid,.ro-wrap .faucet-grid,.ro-wrap .filter-schedule,.ro-wrap .spec-cards{grid-template-columns:1fr;}\n .ro-wrap .benefits-strip{flex-direction:column;}\n .ro-wrap .benefit-item{border-right:none;border-bottom:1px solid rgba(255,255,255,.1);}\n }\n \/* ── Nuclear override — force all text inside ro-wrap to be readable ── *\/\n .ro-wrap p,\n .ro-wrap li,\n .ro-wrap td,\n .ro-wrap th,\n .ro-wrap .ro-section \u003e p {\n font-size: 18px !important;\n line-height: 1.6 !important;\n }\n .ro-wrap .ro-section \u003e p,\n .ro-wrap .ro-callout p,\n .ro-wrap .stage-body p,\n .ro-wrap .ro-feature-card p,\n .ro-wrap .schedule-card p,\n .ro-wrap .faucet-card p,\n .ro-wrap .spec-card .sc-note,\n .ro-wrap .pro-tip p {\n font-size: 18px !important;\n line-height: 1.6 !important;\n }\n .ro-wrap h2 { font-size: clamp(26px,4vw,40px) !important; line-height:1.15 !important; }\n .ro-wrap h3 { font-size: 20px !important; line-height:1.3 !important; }\n .ro-wrap h4 { font-size: 18px !important; line-height:1.3 !important; }\n .ro-wrap .ro-label,\n .ro-wrap .stage-tag,\n .ro-wrap .sc-label { font-size: 14px !important; }\n .ro-wrap .ro-title { font-size: 24px !important; }\n .ro-wrap .interval { font-size: 22px !important; }\n .ro-wrap .stage-num { font-size: 16px !important; }\n .ro-wrap .ro-eyebrow { font-size: 14px !important; }\n .ro-wrap .ro-badge { font-size: 15px !important; }\n\u003c\/style\u003e\n\u003cdiv class=\"ro-wrap\"\u003e\n \u003cdiv class=\"ro-hero\"\u003e\n \u003cdiv class=\"ro-eyebrow\"\u003eAnnual Maintenance Kit\u003c\/div\u003e\n \u003ch2\u003eCompatible to Watts Premier 560032 Four-Stage Standard Annual Filter Kit\u003c\/h2\u003e\n \u003cdiv class=\"ro-tagline\"\u003eComplete annual replacement package for Watts Premier 4-stage reverse osmosis systems\u003c\/div\u003e\n \u003cdiv class=\"ro-badges\"\u003e\n \u003cspan class=\"ro-badge\"\u003eFits 560032\u003c\/span\u003e\n \u003cspan class=\"ro-badge\"\u003eEDEN RO5-100\u003c\/span\u003e\n \u003cspan class=\"ro-badge\"\u003eRO-2550\u003c\/span\u003e\n \u003cspan class=\"ro-badge\"\u003eZero Waste Systems\u003c\/span\u003e\n \u003c\/div\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"ro-callout\"\u003e\n \u003cp\u003eThis complete annual service kit replaces all four filtration stages in Watts Premier reverse osmosis systems with factory-compatible cartridges. You get two sediment filters, two carbon blocks, and one post-carbon inline filter—everything needed to maintain certified performance for another full year.\u003c\/p\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"ro-section\"\u003e\n \u003cdiv class=\"ro-label\"\u003eHOW IT WORKS\u003c\/div\u003e\n \u003ch3 class=\"ro-title\"\u003eFour-Stage Filtration System\u003c\/h3\u003e\n \u003cdiv class=\"stage-pipeline\"\u003e\n \u003cdiv class=\"stage-row\"\u003e\n \u003cdiv class=\"stage-line\"\u003e\u003c\/div\u003e\n \u003cdiv class=\"stage-num\"\u003e1\u003c\/div\u003e\n \u003cdiv class=\"stage-body\"\u003e\n \u003cspan class=\"stage-tag\"\u003eSEDIMENT\u003c\/span\u003e\n \u003ch3\u003e5 Micron Pre-Filter\u003c\/h3\u003e\n \u003cp\u003eRemoves sand, silt, rust, and particulate matter before water reaches carbon stages. Protects downstream components from premature clogging.\u003c\/p\u003e\n \u003cspan class=\"stage-part\"\u003eReplace every 6 months\u003c\/span\u003e\n \u003c\/div\u003e\n \u003c\/div\u003e\n \u003cdiv class=\"stage-row\"\u003e\n \u003cdiv class=\"stage-line\"\u003e\u003c\/div\u003e\n \u003cdiv class=\"stage-num\"\u003e2\u003c\/div\u003e\n \u003cdiv class=\"stage-body\"\u003e\n \u003cspan class=\"stage-tag\"\u003eCARBON\u003c\/span\u003e\n \u003ch3\u003e5 Micron Carbon Block\u003c\/h3\u003e\n \u003cp\u003eCompressed carbon block removes chlorine, taste, odor, and organic contaminants. Conditions water for the RO membrane.\u003c\/p\u003e\n \u003cspan class=\"stage-part\"\u003eReplace every 6 months\u003c\/span\u003e\n \u003c\/div\u003e\n \u003c\/div\u003e\n \u003cdiv class=\"stage-row\"\u003e\n \u003cdiv class=\"stage-line\"\u003e\u003c\/div\u003e\n \u003cdiv class=\"stage-num\"\u003e3\u003c\/div\u003e\n \u003cdiv class=\"stage-body\"\u003e\n \u003cspan class=\"stage-tag\"\u003eSEDIMENT\u003c\/span\u003e\n \u003ch3\u003e5 Micron Secondary Pre-Filter\u003c\/h3\u003e\n \u003cp\u003eSecond sediment stage captures any remaining particulates after carbon treatment. Final barrier before the RO membrane.\u003c\/p\u003e\n \u003cspan class=\"stage-part\"\u003eReplace every 6 months\u003c\/span\u003e\n \u003c\/div\u003e\n \u003c\/div\u003e\n \u003cdiv class=\"stage-row\"\u003e\n \u003cdiv class=\"stage-line\"\u003e\u003c\/div\u003e\n \u003cdiv class=\"stage-num\"\u003e4\u003c\/div\u003e\n \u003cdiv class=\"stage-body\"\u003e\n \u003cspan class=\"stage-tag\"\u003ePOLISH\u003c\/span\u003e\n \u003ch3\u003eInline Post-Carbon Filter\u003c\/h3\u003e\n \u003cp\u003eFinal polishing stage removes any residual taste or odor from stored water. Includes quick-connect fittings for tool-free installation.\u003c\/p\u003e\n \u003cspan class=\"stage-part\"\u003eReplace annually\u003c\/span\u003e\n \u003c\/div\u003e\n \u003c\/div\u003e\n \u003c\/div\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"ro-section\"\u003e\n \u003cdiv class=\"ro-label\"\u003eCOMPATIBILITY\u003c\/div\u003e\n \u003ch3 class=\"ro-title\"\u003eFits Watts Premier 4-Stage Systems\u003c\/h3\u003e\n \u003cp\u003eDirect replacement for Watts Premier 560032 annual kit. Compatible with 4SV series reverse osmosis systems, Zero Waste models, EDEN RO5-100, and RO-2550 units. All cartridges are 9 7\/8 inches × 2 inches and install in standard 10-inch housings. Filter life depends on local water quality and daily usage volume.\u003c\/p\u003e\n \u003c\/div\u003e\n\u003c\/div\u003e","brand":"IPW Industries Inc","offers":[{"title":"Default Title","offer_id":35475069927586,"sku":"(2) SC25-10005 (2) CBCO-10-5 (1) Inline","price":26.9,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0446\/7677\/6098\/files\/product-5537696415906-padded.jpg?v=1777261712"},{"product_id":"w-525-replacement-water-filters-compatible-with-the-watts-5-stage-ro-system","title":"W-525 Replacement Water Filters Compatible with the Watts 5 Stage RO System","description":"\n\u003clink href=\"https:\/\/fonts.googleapis.com\/css2?family=DM+Serif+Display:ital@0;1\u0026amp;family=DM+Sans:wght@300;400;500;600\u0026amp;display=swap\" rel=\"stylesheet\"\u003e\n\u003cstyle\u003e\n .ro-wrap {\n --deep:#0a1628;--ocean:#0f3460;--blue:#1565c0;--sky:#2196f3;--aqua:#4dd0e1;\n --white:#ffffff;--offwhite:#f2f7fc;--slate:#dce8f5;--text:#0d1f38;--muted:#4a6280;\n --gold:#f59e0b;--radius:12px;\n font-family:'DM Sans',sans-serif;color:var(--text);line-height:1.6;-webkit-font-smoothing:antialiased;overflow-wrap:break-word;word-break:break-word;min-width:0;\n }\n .ro-wrap .ro-hero{background:linear-gradient(135deg,var(--deep) 0%,var(--ocean) 50%,#1a5276 100%);color:var(--white);padding:52px 40px 44px;position:relative;overflow:hidden;border-radius:var(--radius) var(--radius) 0 0;}\n .ro-wrap .ro-hero::before{content:'';position:absolute;inset:0;background:radial-gradient(ellipse 70% 55% at 95% 45%,rgba(77,208,225,.15) 0%,transparent 65%),radial-gradient(ellipse 40% 40% at 5% 80%,rgba(255,255,255,.05) 0%,transparent 60%);pointer-events:none;}\n .ro-wrap .ro-eyebrow{font-size:13px !important;font-weight:600;letter-spacing:.18em;text-transform:uppercase;color:var(--aqua);margin-bottom:12px;}\n .ro-wrap .ro-hero h2{font-family:'DM Serif Display',serif;font-size:clamp(26px,4vw,40px) !important;line-height:1.15;font-weight:400;margin-bottom:16px;color:var(--white);}\n .ro-wrap .ro-hero h2 em{font-style:italic;color:var(--aqua);}\n .ro-wrap .ro-tagline{font-size:18px !important;color:rgba(255,255,255,.75);font-weight:300;margin-bottom:28px;}\n .ro-wrap .ro-badges{display:flex;flex-wrap:wrap;gap:10px;}\n .ro-wrap .ro-badge{display:inline-flex;align-items:center;gap:6px;background:rgba(255,255,255,.12);border:1px solid rgba(255,255,255,.2);color:var(--white);font-size:15px !important;font-weight:500;padding:6px 14px;border-radius:40px;backdrop-filter:blur(6px);}\n .ro-wrap .ro-callout{background:var(--offwhite);border-left:4px solid var(--sky);padding:20px 24px;}\n .ro-wrap .ro-callout p{font-size:18px !important;color:var(--text);line-height:1.7;margin:0;}\n .ro-wrap .ro-callout strong{color:var(--ocean);}\n .ro-wrap .ro-section{padding:36px 40px;border-bottom:1px solid var(--slate);}\n .ro-wrap .ro-label{font-size:13px !important;font-weight:700;letter-spacing:.2em;text-transform:uppercase;color:var(--sky);margin-bottom:8px;}\n .ro-wrap .ro-title{font-family:'DM Serif Display',serif;font-size:24px !important;color:var(--deep);margin-bottom:20px;font-weight:400;}\n .ro-wrap .stage-pipeline{display:flex;flex-direction:column;gap:0;margin-top:4px;}\n .ro-wrap .stage-row{display:flex;flex-direction:row;gap:12px;position:relative;min-width:0;align-items:flex-start;width:100%;box-sizing:border-box;}\n .ro-wrap .stage-row:not(:last-child) .stage-line{position:absolute;left:17px;top:40px;bottom:0;width:2px;background:var(--slate);}\n .ro-wrap .stage-num{width:36px;height:36px;min-width:36px;max-width:36px;border-radius:50%;background:linear-gradient(135deg,var(--ocean),var(--sky));color:white;display:flex;align-items:center;justify-content:center;font-size:16px !important;font-weight:700;flex:0 0 36px;position:relative;z-index:1;margin-top:16px;}\n .ro-wrap .stage-body{background:var(--offwhite);border:1px solid var(--slate);border-radius:var(--radius);padding:16px 18px;margin-bottom:12px;flex:1 1 0;min-width:0;overflow:hidden;overflow-wrap:break-word;word-break:break-word;box-sizing:border-box;}\n .ro-wrap .stage-body h3{font-size:20px !important;font-weight:600;color:var(--deep);margin-bottom:8px;margin-top:6px;}\n .ro-wrap .stage-tag{display:block;font-size:12px !important;font-weight:700;letter-spacing:.04em;text-transform:uppercase;background:var(--slate);color:var(--ocean);padding:3px 8px;border-radius:4px;margin-bottom:8px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;max-width:100%;line-height:1.5 !important;box-sizing:border-box;}\n .ro-wrap .stage-body p{font-size:18px !important;color:var(--muted);line-height:1.6;margin:0;display:block;}\n .ro-wrap .stage-body .stage-part{font-size:15px !important;color:var(--sky);margin-top:6px;font-weight:500;}\n .ro-wrap .specs-table{width:100%;border-collapse:collapse;font-size:18px !important;}\n .ro-wrap .specs-table tr{border-bottom:1px solid var(--slate);}\n .ro-wrap .specs-table tr:last-child{border-bottom:none;}\n .ro-wrap .specs-table td{padding:11px 6px;vertical-align:top;}\n .ro-wrap .specs-table td:first-child{font-weight:500;color:var(--deep);width:44%;padding-right:16px;}\n .ro-wrap .specs-table td:last-child{color:var(--muted);}\n .ro-wrap .specs-table tr:hover td{background:var(--offwhite);}\n .ro-wrap .conditions-table{width:100%;border-collapse:collapse;font-size:18px !important;margin-top:4px;}\n .ro-wrap .conditions-table th{background:var(--deep);color:var(--white);font-size:15px !important;font-weight:600;letter-spacing:.06em;text-transform:uppercase;padding:10px 12px;text-align:left;}\n .ro-wrap .conditions-table th:first-child{border-radius:var(--radius) 0 0 0;}\n .ro-wrap .conditions-table th:last-child{border-radius:0 var(--radius) 0 0;}\n .ro-wrap .conditions-table td{padding:10px 12px;border-bottom:1px solid var(--slate);color:var(--text);}\n .ro-wrap .conditions-table tr:nth-child(even) td{background:var(--offwhite);}\n .ro-wrap .ro-feature-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(min(220px,100%),1fr));gap:16px;margin-top:4px;}\n .ro-wrap .ro-feature-card{background:var(--offwhite);border:1px solid var(--slate);border-radius:var(--radius);padding:20px 18px;}\n .ro-wrap .ro-feat-icon{width:40px;height:40px;background:linear-gradient(135deg,var(--ocean),var(--sky));border-radius:10px;display:flex;align-items:center;justify-content:center;margin-bottom:12px;}\n .ro-wrap .ro-feature-card h3{font-size:20px !important;font-weight:600;color:var(--deep);margin-bottom:6px;}\n .ro-wrap .ro-feature-card p{font-size:18px !important;color:var(--muted);line-height:1.55;margin:0;}\n .ro-wrap .pro-tip{display:block;background:#fffbeb;border:1px solid #f5d87a;border-radius:var(--radius);padding:18px 20px;margin-top:20px;box-sizing:border-box;width:100% !important;}\n .ro-wrap .pro-tip-icon{font-size:22px !important;display:inline;margin-right:8px;line-height:1.6 !important;}\n .ro-wrap .pro-tip p{font-size:18px !important;color:#5a4500;line-height:1.6 !important;margin:0;display:block;width:100%;}\n .ro-wrap .pro-tip strong{color:#3d2e00;}\n .ro-wrap .install-steps{counter-reset:step;list-style:none;padding:0;margin:4px 0 0;display:flex;flex-direction:column;gap:14px;}\n .ro-wrap .install-steps li{counter-increment:step;display:flex;align-items:flex-start;gap:14px;font-size:18px !important;color:var(--text);}\n .ro-wrap .install-steps li::before{content:counter(step);display:flex;align-items:center;justify-content:center;width:28px;height:28px;border-radius:50%;background:var(--ocean);color:white;font-size:15px !important;font-weight:700;flex-shrink:0;margin-top:1px;}\n .ro-wrap .filter-schedule{display:grid;grid-template-columns:repeat(auto-fill,minmax(min(180px,100%),1fr));gap:12px;margin-top:4px;}\n .ro-wrap .schedule-card{background:var(--offwhite);border:1px solid var(--slate);border-radius:var(--radius);padding:16px;}\n .ro-wrap .schedule-card .interval{font-size:22px !important;font-family:'DM Serif Display',serif;color:var(--sky);font-weight:400;margin-bottom:4px;}\n .ro-wrap .schedule-card h4{font-size:18px !important;font-weight:600;color:var(--deep);margin-bottom:4px;}\n .ro-wrap .schedule-card p{font-size:15px !important;color:var(--muted);margin:0;line-height:1.45;}\n .ro-wrap .benefits-strip{display:flex;flex-wrap:wrap;background:var(--deep);color:var(--white);border-radius:0 0 var(--radius) var(--radius);overflow:hidden;}\n .ro-wrap .benefit-item{flex:1 1 200px;padding:24px 22px;border-right:1px solid rgba(255,255,255,.1);}\n .ro-wrap .benefit-item:last-child{border-right:none;}\n .ro-wrap .bi-icon{font-size:22px !important;margin-bottom:10px;}\n .ro-wrap .benefit-item h4{font-size:15px !important;font-weight:600;color:var(--aqua);margin-bottom:5px;text-transform:uppercase;letter-spacing:.05em;}\n .ro-wrap .benefit-item p{font-size:15px !important;color:rgba(255,255,255,.65);line-height:1.55;margin:0;}\n .ro-wrap .faucet-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(min(200px,100%),1fr));gap:16px;margin-top:4px;}\n .ro-wrap .faucet-card{border:2px solid var(--slate);border-radius:var(--radius);padding:18px;text-align:center;}\n .ro-wrap .faucet-icon{font-size:28px !important;margin-bottom:10px;}\n .ro-wrap .faucet-card h4{font-size:18px !important;font-weight:600;color:var(--deep);margin-bottom:6px;}\n .ro-wrap .faucet-card p{font-size:15px !important;color:var(--muted);line-height:1.5;margin:0;}\n .ro-wrap .spec-cards{display:grid;grid-template-columns:repeat(auto-fill,minmax(min(180px,100%),1fr));gap:12px;margin-top:4px;}\n .ro-wrap .spec-card{background:var(--offwhite);border:1px solid var(--slate);border-radius:var(--radius);padding:16px;}\n .ro-wrap .spec-card .sc-label{font-size:13px !important;font-weight:700;letter-spacing:.08em;color:var(--sky);text-transform:uppercase;margin-bottom:4px;}\n .ro-wrap .spec-card .sc-value{font-size:20px !important;font-weight:600;color:var(--deep);margin-bottom:4px;}\n .ro-wrap .spec-card .sc-note{font-size:15px !important;color:var(--muted);}\n @media(max-width:640px){\n .ro-wrap .ro-hero{padding:36px 24px 32px;}\n .ro-wrap .ro-section{padding:28px 20px;}\n .ro-wrap .ro-feature-grid,.ro-wrap .faucet-grid,.ro-wrap .filter-schedule,.ro-wrap .spec-cards{grid-template-columns:1fr;}\n .ro-wrap .benefits-strip{flex-direction:column;}\n .ro-wrap .benefit-item{border-right:none;border-bottom:1px solid rgba(255,255,255,.1);}\n }\n \/* ── Nuclear override — force all text inside ro-wrap to be readable ── *\/\n .ro-wrap p,\n .ro-wrap li,\n .ro-wrap td,\n .ro-wrap th,\n .ro-wrap .ro-section \u003e p {\n font-size: 18px !important;\n line-height: 1.6 !important;\n }\n .ro-wrap .ro-section \u003e p,\n .ro-wrap .ro-callout p,\n .ro-wrap .stage-body p,\n .ro-wrap .ro-feature-card p,\n .ro-wrap .schedule-card p,\n .ro-wrap .faucet-card p,\n .ro-wrap .spec-card .sc-note,\n .ro-wrap .pro-tip p {\n font-size: 18px !important;\n line-height: 1.6 !important;\n }\n .ro-wrap h2 { font-size: clamp(26px,4vw,40px) !important; line-height:1.15 !important; }\n .ro-wrap h3 { font-size: 20px !important; line-height:1.3 !important; }\n .ro-wrap h4 { font-size: 18px !important; line-height:1.3 !important; }\n .ro-wrap .ro-label,\n .ro-wrap .stage-tag,\n .ro-wrap .sc-label { font-size: 14px !important; }\n .ro-wrap .ro-title { font-size: 24px !important; }\n .ro-wrap .interval { font-size: 22px !important; }\n .ro-wrap .stage-num { font-size: 16px !important; }\n .ro-wrap .ro-eyebrow { font-size: 14px !important; }\n .ro-wrap .ro-badge { font-size: 15px !important; }\n\u003c\/style\u003e\n\u003cdiv class=\"ro-wrap\"\u003e\n\n\u003cdiv class=\"ro-callout\"\u003e\nThis complete 5-stage replacement filter set delivers certified filtration performance for Watts W-525 and compatible 50 GPD reverse osmosis systems. Includes sediment pre-filter, dual carbon blocks, 50 GPD TFC membrane, and inline polishing filter with 3\/8\" quick-connect fittings.\n\u003c\/div\u003e\n\n\u003cdiv class=\"ro-section\"\u003e\n\u003cdiv class=\"ro-label\"\u003ePACKAGE CONTENTS\u003c\/div\u003e\n\u003ch2 class=\"ro-title\"\u003eComplete 5-Stage Filter Set\u003c\/h2\u003e\n\u003cdiv class=\"spec-cards\"\u003e\n\u003cdiv class=\"spec-card\"\u003e\n\u003cdiv class=\"sc-label\"\u003eSediment Filter\u003c\/div\u003e\n\u003cdiv class=\"sc-value\"\u003e5 Micron\u003c\/div\u003e\n\u003cdiv class=\"sc-note\"\u003eMelt-blown polypropylene\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"spec-card\"\u003e\n\u003cdiv class=\"sc-label\"\u003eCarbon Block Filters\u003c\/div\u003e\n\u003cdiv class=\"sc-value\"\u003eQty 2\u003c\/div\u003e\n\u003cdiv class=\"sc-note\"\u003e5 micron coconut shell carbon\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"spec-card\"\u003e\n\u003cdiv class=\"sc-label\"\u003eRO Membrane\u003c\/div\u003e\n\u003cdiv class=\"sc-value\"\u003e50 GPD\u003c\/div\u003e\n\u003cdiv class=\"sc-note\"\u003eTFC thin-film composite\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"spec-card\"\u003e\n\u003cdiv class=\"sc-label\"\u003ePolishing Filter\u003c\/div\u003e\n\u003cdiv class=\"sc-value\"\u003e10\" GAC\u003c\/div\u003e\n\u003cdiv class=\"sc-note\"\u003eInline carbon, 3\/8\" QC\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"spec-card\"\u003e\n\u003cdiv class=\"sc-label\"\u003eMembrane Rejection\u003c\/div\u003e\n\u003cdiv class=\"sc-value\"\u003eUp to 98%\u003c\/div\u003e\n\u003cdiv class=\"sc-note\"\u003eBacteria and dissolved solids\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"spec-card\"\u003e\n\u003cdiv class=\"sc-label\"\u003eTotal Pieces\u003c\/div\u003e\n\u003cdiv class=\"sc-value\"\u003e5 Filters\u003c\/div\u003e\n\u003cdiv class=\"sc-note\"\u003eComplete annual replacement kit\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"ro-section\"\u003e\n\u003cdiv class=\"ro-label\"\u003eTECHNICAL DETAILS\u003c\/div\u003e\n\u003ch2 class=\"ro-title\"\u003eFilter Specifications\u003c\/h2\u003e\n\u003ctable class=\"specs-table\"\u003e\n\u003ctr\u003e\n\u003ctd\u003eStage 1 Sediment Filter\u003c\/td\u003e\n\u003ctd\u003e5 micron melt-blown polypropylene, removes sand, silt, rust, and particulates\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eStage 2 \u0026amp; 3 Carbon Blocks\u003c\/td\u003e\n\u003ctd\u003e5 micron coconut shell carbon block, removes chlorine, organics, and suspended particles\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eStage 4 RO Membrane\u003c\/td\u003e\n\u003ctd\u003e50 GPD thin-film composite, 98% rejection of TDS, bacteria, heavy metals, and contaminants\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eStage 5 Polishing Filter\u003c\/td\u003e\n\u003ctd\u003e10\" inline granular activated carbon, final taste and odor polishing with 3\/8\" quick-connect\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMembrane Material\u003c\/td\u003e\n\u003ctd\u003eThin-film flat sheet composite membrane\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCarbon Source\u003c\/td\u003e\n\u003ctd\u003ePremium coconut shell activated carbon\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eReplacement Interval\u003c\/td\u003e\n\u003ctd\u003eSediment and carbon filters annually, membrane every 2-3 years depending on water quality\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"ro-section\"\u003e\n\u003cdiv class=\"ro-label\"\u003eCOMPATIBILITY \u0026amp; APPLICATIONS\u003c\/div\u003e\n\u003ch2 class=\"ro-title\"\u003eWorks With These Systems\u003c\/h2\u003e\n\u003cp\u003eDirect replacement for Watts W-525, W525, and WP500313 reverse osmosis systems. Also compatible with APEC ESSENCE ROES-50 and ROES-PH75, iSpring RCC7AK and RCC7, Simpure systems, Home Master units, NU Aqua, Express Water, Global Water RO-505, Bluonics, PureDrop RTW5, Hikins FS-TFC, and Olympia OROS-50. Fits standard 10-inch housings with 3\/8\" quick-connect fittings. Verify your system uses 50 GPD membrane capacity and 10\" filter housings before ordering.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"pro-tip\"\u003e\n💧 Replace sediment and carbon filters every 12 months and the membrane every 2-3 years to maintain optimal flow rate and contaminant rejection. If you notice decreased water production or taste changes, check the sediment filter first before assuming membrane failure.\n\u003c\/div\u003e\n\n\u003c\/div\u003e","brand":"Isopure Water","offers":[{"title":"Default Title","offer_id":35475107610786,"sku":"(1) Sed (2) CB (1) 50 GPD (1) Inline 3\/8\"QC","price":47.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0446\/7677\/6098\/files\/product-5537716371618-padded.jpg?v=1777270695"},{"product_id":"w-415-replacement-water-filters-compatible-with-the-watts-4-stage-ro-system-by-ipw-industries-inc","title":"W-415 Replacement Water Filters Compatible with the Watts 4 Stage RO System by IPW Industries Inc.","description":"\n\u003clink href=\"https:\/\/fonts.googleapis.com\/css2?family=DM+Serif+Display:ital@0;1\u0026amp;family=DM+Sans:wght@300;400;500;600\u0026amp;display=swap\" rel=\"stylesheet\"\u003e\n\u003cstyle\u003e\n .ro-wrap {\n --deep:#0a1628;--ocean:#0f3460;--blue:#1565c0;--sky:#2196f3;--aqua:#4dd0e1;\n --white:#ffffff;--offwhite:#f2f7fc;--slate:#dce8f5;--text:#0d1f38;--muted:#4a6280;\n --gold:#f59e0b;--radius:12px;\n font-family:'DM Sans',sans-serif;color:var(--text);line-height:1.6;-webkit-font-smoothing:antialiased;overflow-wrap:break-word;word-break:break-word;min-width:0;\n }\n .ro-wrap .ro-hero{background:linear-gradient(135deg,var(--deep) 0%,var(--ocean) 50%,#1a5276 100%);color:var(--white);padding:52px 40px 44px;position:relative;overflow:hidden;border-radius:var(--radius) var(--radius) 0 0;}\n .ro-wrap .ro-hero::before{content:'';position:absolute;inset:0;background:radial-gradient(ellipse 70% 55% at 95% 45%,rgba(77,208,225,.15) 0%,transparent 65%),radial-gradient(ellipse 40% 40% at 5% 80%,rgba(255,255,255,.05) 0%,transparent 60%);pointer-events:none;}\n .ro-wrap .ro-eyebrow{font-size:13px 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!important;font-weight:600;color:var(--deep);margin-bottom:6px;}\n .ro-wrap .ro-feature-card p{font-size:18px !important;color:var(--muted);line-height:1.55;margin:0;}\n .ro-wrap .pro-tip{display:block;background:#fffbeb;border:1px solid #f5d87a;border-radius:var(--radius);padding:18px 20px;margin-top:20px;box-sizing:border-box;width:100% !important;}\n .ro-wrap .pro-tip-icon{font-size:22px !important;display:inline;margin-right:8px;line-height:1.6 !important;}\n .ro-wrap .pro-tip p{font-size:18px !important;color:#5a4500;line-height:1.6 !important;margin:0;display:block;width:100%;}\n .ro-wrap .pro-tip strong{color:#3d2e00;}\n .ro-wrap .install-steps{counter-reset:step;list-style:none;padding:0;margin:4px 0 0;display:flex;flex-direction:column;gap:14px;}\n .ro-wrap .install-steps li{counter-increment:step;display:flex;align-items:flex-start;gap:14px;font-size:18px !important;color:var(--text);}\n .ro-wrap .install-steps li::before{content:counter(step);display:flex;align-items:center;justify-content:center;width:28px;height:28px;border-radius:50%;background:var(--ocean);color:white;font-size:15px !important;font-weight:700;flex-shrink:0;margin-top:1px;}\n .ro-wrap .filter-schedule{display:grid;grid-template-columns:repeat(auto-fill,minmax(min(180px,100%),1fr));gap:12px;margin-top:4px;}\n .ro-wrap .schedule-card{background:var(--offwhite);border:1px solid var(--slate);border-radius:var(--radius);padding:16px;}\n .ro-wrap .schedule-card .interval{font-size:22px !important;font-family:'DM Serif Display',serif;color:var(--sky);font-weight:400;margin-bottom:4px;}\n .ro-wrap .schedule-card h4{font-size:18px !important;font-weight:600;color:var(--deep);margin-bottom:4px;}\n .ro-wrap .schedule-card p{font-size:15px !important;color:var(--muted);margin:0;line-height:1.45;}\n .ro-wrap .benefits-strip{display:flex;flex-wrap:wrap;background:var(--deep);color:var(--white);border-radius:0 0 var(--radius) var(--radius);overflow:hidden;}\n .ro-wrap .benefit-item{flex:1 1 200px;padding:24px 22px;border-right:1px solid rgba(255,255,255,.1);}\n .ro-wrap .benefit-item:last-child{border-right:none;}\n .ro-wrap .bi-icon{font-size:22px !important;margin-bottom:10px;}\n .ro-wrap .benefit-item h4{font-size:15px !important;font-weight:600;color:var(--aqua);margin-bottom:5px;text-transform:uppercase;letter-spacing:.05em;}\n .ro-wrap .benefit-item p{font-size:15px !important;color:rgba(255,255,255,.65);line-height:1.55;margin:0;}\n .ro-wrap .faucet-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(min(200px,100%),1fr));gap:16px;margin-top:4px;}\n .ro-wrap .faucet-card{border:2px solid var(--slate);border-radius:var(--radius);padding:18px;text-align:center;}\n .ro-wrap .faucet-icon{font-size:28px !important;margin-bottom:10px;}\n .ro-wrap .faucet-card h4{font-size:18px !important;font-weight:600;color:var(--deep);margin-bottom:6px;}\n .ro-wrap .faucet-card p{font-size:15px !important;color:var(--muted);line-height:1.5;margin:0;}\n .ro-wrap .spec-cards{display:grid;grid-template-columns:repeat(auto-fill,minmax(min(180px,100%),1fr));gap:12px;margin-top:4px;}\n .ro-wrap .spec-card{background:var(--offwhite);border:1px solid var(--slate);border-radius:var(--radius);padding:16px;}\n .ro-wrap .spec-card .sc-label{font-size:13px !important;font-weight:700;letter-spacing:.08em;color:var(--sky);text-transform:uppercase;margin-bottom:4px;}\n .ro-wrap .spec-card .sc-value{font-size:20px !important;font-weight:600;color:var(--deep);margin-bottom:4px;}\n .ro-wrap .spec-card .sc-note{font-size:15px !important;color:var(--muted);}\n @media(max-width:640px){\n .ro-wrap .ro-hero{padding:36px 24px 32px;}\n .ro-wrap .ro-section{padding:28px 20px;}\n .ro-wrap .ro-feature-grid,.ro-wrap .faucet-grid,.ro-wrap .filter-schedule,.ro-wrap .spec-cards{grid-template-columns:1fr;}\n .ro-wrap .benefits-strip{flex-direction:column;}\n .ro-wrap .benefit-item{border-right:none;border-bottom:1px solid rgba(255,255,255,.1);}\n }\n \/* ── Nuclear override — force all text inside ro-wrap to be readable ── *\/\n .ro-wrap p,\n .ro-wrap li,\n .ro-wrap td,\n .ro-wrap th,\n .ro-wrap .ro-section \u003e p {\n font-size: 18px !important;\n line-height: 1.6 !important;\n }\n .ro-wrap .ro-section \u003e p,\n .ro-wrap .ro-callout p,\n .ro-wrap .stage-body p,\n .ro-wrap .ro-feature-card p,\n .ro-wrap .schedule-card p,\n .ro-wrap .faucet-card p,\n .ro-wrap .spec-card .sc-note,\n .ro-wrap .pro-tip p {\n font-size: 18px !important;\n line-height: 1.6 !important;\n }\n .ro-wrap h2 { font-size: clamp(26px,4vw,40px) !important; line-height:1.15 !important; }\n .ro-wrap h3 { font-size: 20px !important; line-height:1.3 !important; }\n .ro-wrap h4 { font-size: 18px !important; line-height:1.3 !important; }\n .ro-wrap .ro-label,\n .ro-wrap .stage-tag,\n .ro-wrap .sc-label { font-size: 14px !important; }\n .ro-wrap .ro-title { font-size: 24px !important; }\n .ro-wrap .interval { font-size: 22px !important; }\n .ro-wrap .stage-num { font-size: 16px !important; }\n .ro-wrap .ro-eyebrow { font-size: 14px !important; }\n .ro-wrap .ro-badge { font-size: 15px !important; }\n\u003c\/style\u003e\n\u003cdiv class=\"ro-wrap\"\u003e\n\n\u003cdiv class=\"ro-hero\"\u003e\n\u003cdiv class=\"ro-eyebrow\"\u003eIPW Industries Inc\u003c\/div\u003e\n\u003ch2\u003eW-415 Replacement Water Filters Compatible with \u003cem\u003eWatts 4 Stage RO System\u003c\/em\u003e\n\u003c\/h2\u003e\n\u003cp class=\"ro-tagline\"\u003eComplete 5-piece replacement filter set designed for Watts reverse osmosis systems and popular compatible models. Includes sediment pre-filter, carbon block, 50 GPD membrane, and inline polishing filter for reliable multi-stage filtration.\u003c\/p\u003e\n\u003cdiv class=\"ro-badges\"\u003e\n\u003cspan class=\"ro-badge\"\u003e5-Piece Kit\u003c\/span\u003e\n\u003cspan class=\"ro-badge\"\u003e50 GPD Membrane\u003c\/span\u003e\n\u003cspan class=\"ro-badge\"\u003eWatts Compatible\u003c\/span\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"ro-section\"\u003e\n\u003cdiv class=\"ro-label\"\u003eWHY IT WORKS\u003c\/div\u003e\n\u003ch3 class=\"ro-title\"\u003eFour stages that cover sediment, organics, dissolved solids, and taste\u003c\/h3\u003e\n\u003cdiv class=\"ro-feature-grid\"\u003e\n\u003cdiv class=\"ro-feature-card\"\u003e\n\u003cdiv class=\"ro-feat-icon\"\u003e\u003cspan\u003e🛡️\u003c\/span\u003e\u003c\/div\u003e\n\u003ch3\u003e5 Micron Sediment Pre-Filter\u003c\/h3\u003e\n\u003cp\u003eMelt-blown polypropylene construction catches sand, dirt, silt, and rust particles before they reach downstream filters. Extends membrane life by removing larger suspended solids first.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"ro-feature-card\"\u003e\n\u003cdiv class=\"ro-feat-icon\"\u003e\u003cspan\u003e🥥\u003c\/span\u003e\u003c\/div\u003e\n\u003ch3\u003e5 Micron Carbon Block\u003c\/h3\u003e\n\u003cp\u003eCoconut shell carbon compressed into a solid block removes chlorine, VOCs, and organic compounds. Block structure provides better contact time and filtration than granular carbon alone.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"ro-feature-card\"\u003e\n\u003cdiv class=\"ro-feat-icon\"\u003e\u003cspan\u003e💧\u003c\/span\u003e\u003c\/div\u003e\n\u003ch3\u003e50 GPD Thin Film Membrane\u003c\/h3\u003e\n\u003cp\u003eThe core of the system. Thin film composite membrane reduces up to 98% of dissolved solids, heavy metals, bacteria, and contaminants. Rated for 50 gallons per day output.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"ro-feature-card\"\u003e\n\u003cdiv class=\"ro-feat-icon\"\u003e\u003cspan\u003e✨\u003c\/span\u003e\u003c\/div\u003e\n\u003ch3\u003eInline Carbon Polishing Filter\u003c\/h3\u003e\n\u003cp\u003eFinal-stage 10-inch inline filter with granular activated carbon stabilizes taste and removes any residual odors from the storage tank. Connects with 3\/8-inch quick connect fittings.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"ro-section\"\u003e\n\u003cdiv class=\"ro-label\"\u003eCOMPATIBILITY\u003c\/div\u003e\n\u003ch3 class=\"ro-title\"\u003eDesigned for Watts and widely compatible with popular RO brands\u003c\/h3\u003e\n\u003cp\u003eThis W-415 filter set is engineered to fit Watts W-415, W415, and WP500313 reverse osmosis systems. Also compatible with APEC ESSENCE ROES-50, APEC ESSENCE ROES-PH75, iSpring RCC7AK, iSpring RCC7, Simpure, Home Master, NU Aqua, Express Water, Global Water RO-505, Bluonics, PureDrop RTW5, Hikins FS-TFC, and Olympia OROS-50. Verify your system uses standard 10-inch filter housings and 3\/8-inch quick connect fittings before ordering.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"ro-section\"\u003e\n\u003cdiv class=\"ro-label\"\u003eMAINTENANCE\u003c\/div\u003e\n\u003ch3 class=\"ro-title\"\u003eReplacement schedule for optimal performance\u003c\/h3\u003e\n\u003cdiv class=\"filter-schedule\"\u003e\n\u003cdiv class=\"schedule-card\"\u003e\n\u003cdiv class=\"interval\"\u003eEvery 6 months\u003c\/div\u003e\n\u003ch4\u003eSediment and Carbon Block Filters\u003c\/h4\u003e\n\u003cp\u003eReplace the 5 micron sediment filter and 5 micron carbon block filter twice per year or sooner if you notice pressure drop or taste changes. Pre-filters protect the membrane.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"schedule-card\"\u003e\n\u003cdiv class=\"interval\"\u003eEvery 12 months\u003c\/div\u003e\n\u003ch4\u003eInline Polishing Filter\u003c\/h4\u003e\n\u003cp\u003eSwap the 10-inch inline carbon filter annually to maintain fresh taste and remove any odors from the storage tank. Quick connect fittings make replacement simple.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"schedule-card\"\u003e\n\u003cdiv class=\"interval\"\u003eEvery 2 years\u003c\/div\u003e\n\u003ch4\u003eRO Membrane\u003c\/h4\u003e\n\u003cp\u003eReplace the 50 GPD membrane every 24 months under normal use. If your TDS readings rise or flow rate drops significantly, consider replacing sooner.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"benefits-strip\"\u003e\n\u003cdiv class=\"benefit-item\"\u003e\n\u003cdiv class=\"bi-icon\"\u003e📦\u003c\/div\u003e\n\u003ch4\u003eComplete Kit\u003c\/h4\u003e\n\u003cp\u003eAll five filters in one package for full system refresh\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"benefit-item\"\u003e\n\u003cdiv class=\"bi-icon\"\u003e🔧\u003c\/div\u003e\n\u003ch4\u003eDrop-In Replacement\u003c\/h4\u003e\n\u003cp\u003eStandard sizing fits Watts and compatible RO housings\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"benefit-item\"\u003e\n\u003cdiv class=\"bi-icon\"\u003e🌊\u003c\/div\u003e\n\u003ch4\u003eMulti-Stage Filtration\u003c\/h4\u003e\n\u003cp\u003eSediment, carbon, membrane, and polishing in sequence\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"benefit-item\"\u003e\n\u003cdiv class=\"bi-icon\"\u003e🥥\u003c\/div\u003e\n\u003ch4\u003eCoconut Shell Carbon\u003c\/h4\u003e\n\u003cp\u003eHigh-quality activated carbon for taste and odor removal\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003c\/div\u003e","brand":"IPW Industries Inc","offers":[{"title":"Default Title","offer_id":35475155648674,"sku":"(1) Sed (1) CB (1) 50 GPD (1) Inline 3\/8\" QC","price":39.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0446\/7677\/6098\/files\/product-5537741013154-padded.jpg?v=1777270688"},{"product_id":"compatible-watts-5-pk-4sv-premier-1-year-4-stage-reverse-osmosis-replacement-filter-kit-5-pack-by-ipw-industries-inc","title":"Compatible Watts 5-PK-4SV Premier 1-Year 4-Stage Reverse Osmosis Replacement Filter Kit, 5-Pack by IPW Industries Inc","description":"\n\u003clink href=\"https:\/\/fonts.googleapis.com\/css2?family=DM+Serif+Display:ital@0;1\u0026amp;family=DM+Sans:wght@300;400;500;600\u0026amp;display=swap\" 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var(--radius);overflow:hidden;}\n .ro-wrap .benefit-item{flex:1 1 200px;padding:24px 22px;border-right:1px solid rgba(255,255,255,.1);}\n .ro-wrap .benefit-item:last-child{border-right:none;}\n .ro-wrap .bi-icon{font-size:22px !important;margin-bottom:10px;}\n .ro-wrap .benefit-item h4{font-size:15px !important;font-weight:600;color:var(--aqua);margin-bottom:5px;text-transform:uppercase;letter-spacing:.05em;}\n .ro-wrap .benefit-item p{font-size:15px !important;color:rgba(255,255,255,.65);line-height:1.55;margin:0;}\n .ro-wrap .faucet-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(min(200px,100%),1fr));gap:16px;margin-top:4px;}\n .ro-wrap .faucet-card{border:2px solid var(--slate);border-radius:var(--radius);padding:18px;text-align:center;}\n .ro-wrap .faucet-icon{font-size:28px !important;margin-bottom:10px;}\n .ro-wrap .faucet-card h4{font-size:18px !important;font-weight:600;color:var(--deep);margin-bottom:6px;}\n .ro-wrap .faucet-card p{font-size:15px !important;color:var(--muted);line-height:1.5;margin:0;}\n .ro-wrap .spec-cards{display:grid;grid-template-columns:repeat(auto-fill,minmax(min(180px,100%),1fr));gap:12px;margin-top:4px;}\n .ro-wrap .spec-card{background:var(--offwhite);border:1px solid var(--slate);border-radius:var(--radius);padding:16px;}\n .ro-wrap .spec-card .sc-label{font-size:13px !important;font-weight:700;letter-spacing:.08em;color:var(--sky);text-transform:uppercase;margin-bottom:4px;}\n .ro-wrap .spec-card .sc-value{font-size:20px !important;font-weight:600;color:var(--deep);margin-bottom:4px;}\n .ro-wrap .spec-card .sc-note{font-size:15px !important;color:var(--muted);}\n @media(max-width:640px){\n .ro-wrap .ro-hero{padding:36px 24px 32px;}\n .ro-wrap .ro-section{padding:28px 20px;}\n .ro-wrap .ro-feature-grid,.ro-wrap .faucet-grid,.ro-wrap .filter-schedule,.ro-wrap .spec-cards{grid-template-columns:1fr;}\n .ro-wrap .benefits-strip{flex-direction:column;}\n .ro-wrap .benefit-item{border-right:none;border-bottom:1px solid rgba(255,255,255,.1);}\n }\n \/* ── Nuclear override — force all text inside ro-wrap to be readable ── *\/\n .ro-wrap p,\n .ro-wrap li,\n .ro-wrap td,\n .ro-wrap th,\n .ro-wrap .ro-section \u003e p {\n font-size: 18px !important;\n line-height: 1.6 !important;\n }\n .ro-wrap .ro-section \u003e p,\n .ro-wrap .ro-callout p,\n .ro-wrap .stage-body p,\n .ro-wrap .ro-feature-card p,\n .ro-wrap .schedule-card p,\n .ro-wrap .faucet-card p,\n .ro-wrap .spec-card .sc-note,\n .ro-wrap .pro-tip p {\n font-size: 18px !important;\n line-height: 1.6 !important;\n }\n .ro-wrap h2 { font-size: clamp(26px,4vw,40px) !important; line-height:1.15 !important; }\n .ro-wrap h3 { font-size: 20px !important; line-height:1.3 !important; }\n .ro-wrap h4 { font-size: 18px !important; line-height:1.3 !important; }\n .ro-wrap .ro-label,\n .ro-wrap .stage-tag,\n .ro-wrap .sc-label { font-size: 14px !important; }\n .ro-wrap .ro-title { font-size: 24px !important; }\n .ro-wrap .interval { font-size: 22px !important; }\n .ro-wrap .stage-num { font-size: 16px !important; }\n .ro-wrap .ro-eyebrow { font-size: 14px !important; }\n .ro-wrap .ro-badge { font-size: 15px !important; }\n\u003c\/style\u003e\n\u003cdiv class=\"ro-wrap\"\u003e\n \u003cdiv class=\"ro-hero\"\u003e\n \u003cdiv class=\"ro-eyebrow\"\u003eCompatible Replacement Filter Kit\u003c\/div\u003e\n \u003ch2\u003eWatts 5-PK-4SV Premier 1-Year 4-Stage RO Filter Kit, 5-Pack\u003c\/h2\u003e\n \u003cdiv class=\"ro-tagline\"\u003eFive complete filter sets for standard 10-inch reverse osmosis systems, manufactured by IPW Industries Inc\u003c\/div\u003e\n \u003cdiv class=\"ro-badges\"\u003e\n \u003cspan class=\"ro-badge\"\u003eCompatible with Watts Premier\u003c\/span\u003e\n \u003cspan class=\"ro-badge\"\u003eStandard 10\" Housing\u003c\/span\u003e\n \u003cspan class=\"ro-badge\"\u003e5 Complete Sets\u003c\/span\u003e\n \u003cspan class=\"ro-badge\"\u003eIncludes Universal Wrench\u003c\/span\u003e\n \u003c\/div\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"ro-callout\"\u003e\n \u003cp\u003eThis kit provides a full year of replacement filters for four-stage reverse osmosis systems, packaged in quantities of five complete filter sets. Each set includes two sediment filters, two carbon block filters, one inline GAC polishing filter, and a universal wrench for installation—designed to fit Watts Premier and other standard 10-inch RO systems.\u003c\/p\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"ro-section\"\u003e\n \u003cdiv class=\"ro-label\"\u003eHOW IT WORKS\u003c\/div\u003e\n \u003ch2 class=\"ro-title\"\u003eFour-Stage Filtration Process\u003c\/h2\u003e\n \u003cdiv class=\"stage-pipeline\"\u003e\n \u003cdiv class=\"stage-row\"\u003e\n \u003cdiv class=\"stage-line\"\u003e\u003c\/div\u003e\n \u003cdiv class=\"stage-num\"\u003e1\u003c\/div\u003e\n \u003cdiv class=\"stage-body\"\u003e\n \u003cspan class=\"stage-tag\"\u003eSEDIMENT\u003c\/span\u003e\n \u003ch3\u003eInitial Sediment Filtration\u003c\/h3\u003e\n \u003cp\u003e100% polypropylene sediment filter removes suspended solids, rust, and particulate matter from incoming water. Protects downstream components from clogging and extends membrane life.\u003c\/p\u003e\n \u003cspan class=\"stage-part\"\u003eService life: 6-12 months\u003c\/span\u003e\n \u003c\/div\u003e\n \u003c\/div\u003e\n \u003cdiv class=\"stage-row\"\u003e\n \u003cdiv class=\"stage-line\"\u003e\u003c\/div\u003e\n \u003cdiv class=\"stage-num\"\u003e2\u003c\/div\u003e\n \u003cdiv class=\"stage-body\"\u003e\n \u003cspan class=\"stage-tag\"\u003eCARBON\u003c\/span\u003e\n \u003ch3\u003eCarbon Block Pre-Treatment\u003c\/h3\u003e\n \u003cp\u003e100% coconut shell carbon block filter reduces chlorine, volatile organic compounds, and taste and odor issues. Prepares water for reverse osmosis membrane processing.\u003c\/p\u003e\n \u003cspan class=\"stage-part\"\u003eService life: 6-12 months\u003c\/span\u003e\n \u003c\/div\u003e\n \u003c\/div\u003e\n \u003cdiv class=\"stage-row\"\u003e\n \u003cdiv class=\"stage-line\"\u003e\u003c\/div\u003e\n \u003cdiv class=\"stage-num\"\u003e3\u003c\/div\u003e\n \u003cdiv class=\"stage-body\"\u003e\n \u003cspan class=\"stage-tag\"\u003eSEDIMENT\u003c\/span\u003e\n \u003ch3\u003eSecondary Sediment Filtration\u003c\/h3\u003e\n \u003cp\u003eSecond polypropylene sediment filter provides additional particulate removal before water reaches the RO membrane. Critical for maintaining membrane performance and preventing premature fouling.\u003c\/p\u003e\n \u003cspan class=\"stage-part\"\u003eService life: 6-12 months\u003c\/span\u003e\n \u003c\/div\u003e\n \u003c\/div\u003e\n \u003cdiv class=\"stage-row\"\u003e\n \u003cdiv class=\"stage-line\"\u003e\u003c\/div\u003e\n \u003cdiv class=\"stage-num\"\u003e4\u003c\/div\u003e\n \u003cdiv class=\"stage-body\"\u003e\n \u003cspan class=\"stage-tag\"\u003ePOLISH\u003c\/span\u003e\n \u003ch3\u003eGAC Inline Post-Filter\u003c\/h3\u003e\n \u003cp\u003e10-inch granular activated carbon inline filter with 1\/4\" NPT threading provides final polishing. Removes residual tastes and odors from stored water before dispensing.\u003c\/p\u003e\n \u003cspan class=\"stage-part\"\u003eService life: 6-12 months\u003c\/span\u003e\n \u003c\/div\u003e\n \u003c\/div\u003e\n \u003c\/div\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"ro-section\"\u003e\n \u003cdiv class=\"ro-label\"\u003eSPECIFICATIONS\u003c\/div\u003e\n \u003ch2 class=\"ro-title\"\u003eFilter Kit Details\u003c\/h2\u003e\n \u003ctable class=\"specs-table\"\u003e\n \u003ctr\u003e\n \u003ctd class=\"specs-label\"\u003eKit Contents\u003c\/td\u003e\n \u003ctd class=\"specs-value\"\u003e5 complete filter sets (20 filters total plus 5 wrenches)\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003ctd class=\"specs-label\"\u003ePer Set Includes\u003c\/td\u003e\n \u003ctd class=\"specs-value\"\u003e(2) Sediment filters, (2) Carbon blocks, (1) GAC inline, (1) Universal wrench\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003ctd class=\"specs-label\"\u003eFilter Dimensions\u003c\/td\u003e\n \u003ctd class=\"specs-value\"\u003e10\" H × 2.5\" diameter (standard 10-inch housing size)\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003ctd class=\"specs-label\"\u003eWeight\u003c\/td\u003e\n \u003ctd class=\"specs-value\"\u003e6 lbs per kit\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003ctd class=\"specs-label\"\u003eSediment Material\u003c\/td\u003e\n \u003ctd class=\"specs-value\"\u003e100% polypropylene construction\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003ctd class=\"specs-label\"\u003eCarbon Material\u003c\/td\u003e\n \u003ctd class=\"specs-value\"\u003e100% coconut shell activated carbon\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003ctd class=\"specs-label\"\u003eInline Connection\u003c\/td\u003e\n \u003ctd class=\"specs-value\"\u003e1\/4\" NPT threading\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003ctd class=\"specs-label\"\u003eService Life\u003c\/td\u003e\n \u003ctd class=\"specs-value\"\u003e6-12 months depending on usage and source water quality\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003ctd class=\"specs-label\"\u003ePackaging\u003c\/td\u003e\n \u003ctd class=\"specs-value\"\u003eIndividually wrapped and sealed for extended shelf life\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003c\/table\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"ro-section\"\u003e\n \u003cdiv class=\"ro-label\"\u003eCOMPATIBILITY\u003c\/div\u003e\n \u003ch2 class=\"ro-title\"\u003eSystem Fitment\u003c\/h2\u003e\n \u003cp\u003eThese filters are compatible with Watts Premier 4-stage reverse osmosis systems (including the Watts 5-PK-4SV), Hydronix systems, and other standard residential or commercial RO units that use 10-inch filter housings with 2.5-inch diameters. Filters fit any standard 10\" filter housing regardless of brand. This is a compatible aftermarket replacement manufactured by IPW Industries Inc—original equipment manufacturer names and part numbers are referenced for compatibility identification only. Always consult your system's installation and operation manual for proper filter replacement procedures and verify housing dimensions before ordering.\u003c\/p\u003e\n \u003c\/div\u003e\n\u003c\/div\u003e","brand":"IPW Industries Inc","offers":[{"title":"Default Title","offer_id":35475214172322,"sku":"2xSC25-1005;2xCBC-10-5;1xInline;Wrench","price":29.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0446\/7677\/6098\/files\/product-5537757462690-padded.jpg?v=1777261749"},{"product_id":"watts-premier-reverse-osmosis-membrane-with-check-valve-for-fmro4-man-wp-5-wp-4v","title":"Watts Premier - Reverse Osmosis Membrane with Check Valve for FMRO4-MAN, WP-5 \u0026 WP-4V","description":"\n\u003clink href=\"https:\/\/fonts.googleapis.com\/css2?family=DM+Serif+Display:ital@0;1\u0026amp;family=DM+Sans:wght@300;400;500;600\u0026amp;display=swap\" rel=\"stylesheet\"\u003e\n\u003cstyle\u003e\n .ro-wrap {\n --deep:#0a1628;--ocean:#0f3460;--blue:#1565c0;--sky:#2196f3;--aqua:#4dd0e1;\n --white:#ffffff;--offwhite:#f2f7fc;--slate:#dce8f5;--text:#0d1f38;--muted:#4a6280;\n --gold:#f59e0b;--radius:12px;\n font-family:'DM Sans',sans-serif;color:var(--text);line-height:1.6;-webkit-font-smoothing:antialiased;overflow-wrap:break-word;word-break:break-word;min-width:0;\n }\n .ro-wrap .ro-hero{background:linear-gradient(135deg,var(--deep) 0%,var(--ocean) 50%,#1a5276 100%);color:var(--white);padding:52px 40px 44px;position:relative;overflow:hidden;border-radius:var(--radius) var(--radius) 0 0;}\n .ro-wrap .ro-hero::before{content:'';position:absolute;inset:0;background:radial-gradient(ellipse 70% 55% at 95% 45%,rgba(77,208,225,.15) 0%,transparent 65%),radial-gradient(ellipse 40% 40% at 5% 80%,rgba(255,255,255,.05) 0%,transparent 60%);pointer-events:none;}\n .ro-wrap .ro-eyebrow{font-size:13px 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!important;font-weight:600;letter-spacing:.06em;text-transform:uppercase;padding:10px 12px;text-align:left;}\n .ro-wrap .conditions-table th:first-child{border-radius:var(--radius) 0 0 0;}\n .ro-wrap .conditions-table th:last-child{border-radius:0 var(--radius) 0 0;}\n .ro-wrap .conditions-table td{padding:10px 12px;border-bottom:1px solid var(--slate);color:var(--text);}\n .ro-wrap .conditions-table tr:nth-child(even) td{background:var(--offwhite);}\n .ro-wrap .ro-feature-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(min(220px,100%),1fr));gap:16px;margin-top:4px;}\n .ro-wrap .ro-feature-card{background:var(--offwhite);border:1px solid var(--slate);border-radius:var(--radius);padding:20px 18px;}\n .ro-wrap .ro-feat-icon{width:40px;height:40px;background:linear-gradient(135deg,var(--ocean),var(--sky));border-radius:10px;display:flex;align-items:center;justify-content:center;margin-bottom:12px;}\n .ro-wrap .ro-feature-card h3{font-size:20px !important;font-weight:600;color:var(--deep);margin-bottom:6px;}\n .ro-wrap .ro-feature-card p{font-size:18px !important;color:var(--muted);line-height:1.55;margin:0;}\n .ro-wrap .pro-tip{display:block;background:#fffbeb;border:1px solid #f5d87a;border-radius:var(--radius);padding:18px 20px;margin-top:20px;box-sizing:border-box;width:100% !important;}\n .ro-wrap .pro-tip-icon{font-size:22px !important;display:inline;margin-right:8px;line-height:1.6 !important;}\n .ro-wrap .pro-tip p{font-size:18px !important;color:#5a4500;line-height:1.6 !important;margin:0;display:block;width:100%;}\n .ro-wrap .pro-tip strong{color:#3d2e00;}\n .ro-wrap .install-steps{counter-reset:step;list-style:none;padding:0;margin:4px 0 0;display:flex;flex-direction:column;gap:14px;}\n .ro-wrap .install-steps li{counter-increment:step;display:flex;align-items:flex-start;gap:14px;font-size:18px !important;color:var(--text);}\n .ro-wrap .install-steps li::before{content:counter(step);display:flex;align-items:center;justify-content:center;width:28px;height:28px;border-radius:50%;background:var(--ocean);color:white;font-size:15px !important;font-weight:700;flex-shrink:0;margin-top:1px;}\n .ro-wrap .filter-schedule{display:grid;grid-template-columns:repeat(auto-fill,minmax(min(180px,100%),1fr));gap:12px;margin-top:4px;}\n .ro-wrap .schedule-card{background:var(--offwhite);border:1px solid var(--slate);border-radius:var(--radius);padding:16px;}\n .ro-wrap .schedule-card .interval{font-size:22px !important;font-family:'DM Serif Display',serif;color:var(--sky);font-weight:400;margin-bottom:4px;}\n .ro-wrap .schedule-card h4{font-size:18px !important;font-weight:600;color:var(--deep);margin-bottom:4px;}\n .ro-wrap .schedule-card p{font-size:15px !important;color:var(--muted);margin:0;line-height:1.45;}\n .ro-wrap .benefits-strip{display:flex;flex-wrap:wrap;background:var(--deep);color:var(--white);border-radius:0 0 var(--radius) var(--radius);overflow:hidden;}\n .ro-wrap .benefit-item{flex:1 1 200px;padding:24px 22px;border-right:1px solid rgba(255,255,255,.1);}\n .ro-wrap .benefit-item:last-child{border-right:none;}\n .ro-wrap .bi-icon{font-size:22px !important;margin-bottom:10px;}\n .ro-wrap .benefit-item h4{font-size:15px !important;font-weight:600;color:var(--aqua);margin-bottom:5px;text-transform:uppercase;letter-spacing:.05em;}\n .ro-wrap .benefit-item p{font-size:15px !important;color:rgba(255,255,255,.65);line-height:1.55;margin:0;}\n .ro-wrap .faucet-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(min(200px,100%),1fr));gap:16px;margin-top:4px;}\n .ro-wrap .faucet-card{border:2px solid var(--slate);border-radius:var(--radius);padding:18px;text-align:center;}\n .ro-wrap .faucet-icon{font-size:28px !important;margin-bottom:10px;}\n .ro-wrap .faucet-card h4{font-size:18px !important;font-weight:600;color:var(--deep);margin-bottom:6px;}\n .ro-wrap .faucet-card p{font-size:15px !important;color:var(--muted);line-height:1.5;margin:0;}\n .ro-wrap .spec-cards{display:grid;grid-template-columns:repeat(auto-fill,minmax(min(180px,100%),1fr));gap:12px;margin-top:4px;}\n .ro-wrap .spec-card{background:var(--offwhite);border:1px solid var(--slate);border-radius:var(--radius);padding:16px;}\n .ro-wrap .spec-card .sc-label{font-size:13px !important;font-weight:700;letter-spacing:.08em;color:var(--sky);text-transform:uppercase;margin-bottom:4px;}\n .ro-wrap .spec-card .sc-value{font-size:20px !important;font-weight:600;color:var(--deep);margin-bottom:4px;}\n .ro-wrap .spec-card .sc-note{font-size:15px !important;color:var(--muted);}\n @media(max-width:640px){\n .ro-wrap .ro-hero{padding:36px 24px 32px;}\n .ro-wrap .ro-section{padding:28px 20px;}\n .ro-wrap .ro-feature-grid,.ro-wrap .faucet-grid,.ro-wrap .filter-schedule,.ro-wrap .spec-cards{grid-template-columns:1fr;}\n .ro-wrap .benefits-strip{flex-direction:column;}\n .ro-wrap .benefit-item{border-right:none;border-bottom:1px solid rgba(255,255,255,.1);}\n }\n \/* ── Nuclear override — force all text inside ro-wrap to be readable ── *\/\n .ro-wrap p,\n .ro-wrap li,\n .ro-wrap td,\n .ro-wrap th,\n .ro-wrap .ro-section \u003e p {\n font-size: 18px !important;\n line-height: 1.6 !important;\n }\n .ro-wrap .ro-section \u003e p,\n .ro-wrap .ro-callout p,\n .ro-wrap .stage-body p,\n .ro-wrap .ro-feature-card p,\n .ro-wrap .schedule-card p,\n .ro-wrap .faucet-card p,\n .ro-wrap .spec-card .sc-note,\n .ro-wrap .pro-tip p {\n font-size: 18px !important;\n line-height: 1.6 !important;\n }\n .ro-wrap h2 { font-size: clamp(26px,4vw,40px) !important; line-height:1.15 !important; }\n .ro-wrap h3 { font-size: 20px !important; line-height:1.3 !important; }\n .ro-wrap h4 { font-size: 18px !important; line-height:1.3 !important; }\n .ro-wrap .ro-label,\n .ro-wrap .stage-tag,\n .ro-wrap .sc-label { font-size: 14px !important; }\n .ro-wrap .ro-title { font-size: 24px !important; }\n .ro-wrap .interval { font-size: 22px !important; }\n .ro-wrap .stage-num { font-size: 16px !important; }\n .ro-wrap .ro-eyebrow { font-size: 14px !important; }\n .ro-wrap .ro-badge { font-size: 15px !important; }\n\u003c\/style\u003e\n\u003cdiv class=\"ro-wrap\"\u003e\n\n\u003cdiv class=\"ro-callout\"\u003e\nThe Watts Premier Reverse Osmosis Membrane with integrated check valve is the core filtration element for FMRO4-MAN, WP-5, and WP-4V systems, removing up to 99% of contaminants down to 1\/10,000 of a micron. This semi-permeable membrane reduces TDS, sodium, arsenic, lead, perchlorate, chromium, copper, radium, and protozoan cysts including Giardia and Cryptosporidium.\n\u003c\/div\u003e\n\n\u003cdiv class=\"ro-section\"\u003e\n\u003cdiv class=\"ro-label\"\u003eSPECIFICATIONS\u003c\/div\u003e\n\u003ch2 class=\"ro-title\"\u003eMembrane Performance \u0026amp; Ratings\u003c\/h2\u003e\n\u003cdiv class=\"spec-cards\"\u003e\n\u003cdiv class=\"spec-card\"\u003e\n\u003cdiv class=\"sc-label\"\u003eFiltration Rating\u003c\/div\u003e\n\u003cdiv class=\"sc-value\"\u003e1\/10,000 Micron\u003c\/div\u003e\n\u003cdiv class=\"sc-note\"\u003eRemoves submicroscopic contaminants\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"spec-card\"\u003e\n\u003cdiv class=\"sc-label\"\u003eService Life\u003c\/div\u003e\n\u003cdiv class=\"sc-value\"\u003e2-5 Years\u003c\/div\u003e\n\u003cdiv class=\"sc-note\"\u003eVaries by water conditions and usage\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"spec-card\"\u003e\n\u003cdiv class=\"sc-label\"\u003eContaminant Reduction\u003c\/div\u003e\n\u003cdiv class=\"sc-value\"\u003eUp to 99%\u003c\/div\u003e\n\u003cdiv class=\"sc-note\"\u003eHeavy metals, chemicals, microbes\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"spec-card\"\u003e\n\u003cdiv class=\"sc-label\"\u003eCheck Valve\u003c\/div\u003e\n\u003cdiv class=\"sc-value\"\u003eIntegrated\u003c\/div\u003e\n\u003cdiv class=\"sc-note\"\u003ePrevents backflow contamination\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"spec-card\"\u003e\n\u003cdiv class=\"sc-label\"\u003eSystem Type\u003c\/div\u003e\n\u003cdiv class=\"sc-value\"\u003eResidential RO\u003c\/div\u003e\n\u003cdiv class=\"sc-note\"\u003ePremier standard reverse osmosis\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"spec-card\"\u003e\n\u003cdiv class=\"sc-label\"\u003eInstallation\u003c\/div\u003e\n\u003cdiv class=\"sc-value\"\u003eDirect Fit\u003c\/div\u003e\n\u003cdiv class=\"sc-note\"\u003eNo adapters required\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"ro-section\"\u003e\n\u003cdiv class=\"ro-label\"\u003eTECHNICAL DETAILS\u003c\/div\u003e\n\u003ch2 class=\"ro-title\"\u003eContaminant Reduction \u0026amp; System Data\u003c\/h2\u003e\n\u003ctable class=\"specs-table\"\u003e\n\u003ctr\u003e\n\u003ctd\u003eManufacturer\u003c\/td\u003e\n\u003ctd\u003eWatts Premier\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct Class\u003c\/td\u003e\n\u003ctd\u003eResidential Reverse Osmosis Membrane\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eContaminants Reduced\u003c\/td\u003e\n\u003ctd\u003eArsenic, Lead, Perchlorate, Chromium, Copper, Radium, Giardia, Cryptosporidium, TDS, Sodium\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMembrane Type\u003c\/td\u003e\n\u003ctd\u003eSemi-permeable thin film composite\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFlow Restrictor Compatibility\u003c\/td\u003e\n\u003ctd\u003eIn-line cleanable flow restrictor (removable and reusable)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eReplacement Cycle\u003c\/td\u003e\n\u003ctd\u003e2-5 years depending on water quality, usage patterns, and pre-filter maintenance\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCompatible Part Numbers\u003c\/td\u003e\n\u003ctd\u003e560014, 560016, 560018, 560020, 560022\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"ro-section\"\u003e\n\u003cdiv class=\"ro-label\"\u003eCOMPATIBILITY \u0026amp; APPLICATIONS\u003c\/div\u003e\n\u003ch2 class=\"ro-title\"\u003eSystem Fitment\u003c\/h2\u003e\n\u003cp\u003eThis membrane is engineered specifically for Watts Premier FMRO4-MAN, WP-5, WP-4V, and WP4-V reverse osmosis systems. The integrated check valve design ensures proper system operation and prevents backflow that could compromise water purity. The updated in-line flow restrictor technology used with this membrane eliminates the need to replace enclosed restrictors at each membrane change, reducing long-term maintenance costs. Ideal for residential point-of-use applications where high-purity drinking water is required.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"pro-tip\"\u003e\n💧 \u003cstrong\u003ePro Tip:\u003c\/strong\u003e Membrane life is directly tied to pre-filter maintenance. Replace sediment and carbon pre-filters on schedule to prevent fouling and maximize the 2-5 year lifespan of this RO membrane. Low water pressure or off-taste are early indicators that pre-filters need attention before membrane damage occurs.\n\u003c\/div\u003e\n\n\u003c\/div\u003e","brand":"Watts","offers":[{"title":"24 GPD","offer_id":35578721730722,"sku":"F560014","price":90.8,"currency_code":"USD","in_stock":true},{"title":"36 GPD","offer_id":35578721763490,"sku":"F560016","price":215.66,"currency_code":"USD","in_stock":true},{"title":"50 GPD","offer_id":35578721796258,"sku":"F560018","price":88.16,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0446\/7677\/6098\/files\/product-5569331232930-padded.jpg?v=1777271371"},{"product_id":"watts-1r-1y-1b-kwik-change-wqc4ro11-annual-replacement-filter-kit-for-11-50-gpd-system-not-for-watts-premier","title":"Watts 1R-1Y-1B Kwik-Change WQC4RO11 Annual Replacement Filter Kit for 11\" 50 GPD System - Not for Watts Premier","description":"\n\u003clink 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var(--radius);overflow:hidden;}\n .ro-wrap .benefit-item{flex:1 1 200px;padding:24px 22px;border-right:1px solid rgba(255,255,255,.1);}\n .ro-wrap .benefit-item:last-child{border-right:none;}\n .ro-wrap .bi-icon{font-size:22px !important;margin-bottom:10px;}\n .ro-wrap .benefit-item h4{font-size:15px !important;font-weight:600;color:var(--aqua);margin-bottom:5px;text-transform:uppercase;letter-spacing:.05em;}\n .ro-wrap .benefit-item p{font-size:15px !important;color:rgba(255,255,255,.65);line-height:1.55;margin:0;}\n .ro-wrap .faucet-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(min(200px,100%),1fr));gap:16px;margin-top:4px;}\n .ro-wrap .faucet-card{border:2px solid var(--slate);border-radius:var(--radius);padding:18px;text-align:center;}\n .ro-wrap .faucet-icon{font-size:28px !important;margin-bottom:10px;}\n .ro-wrap .faucet-card h4{font-size:18px !important;font-weight:600;color:var(--deep);margin-bottom:6px;}\n .ro-wrap .faucet-card p{font-size:15px !important;color:var(--muted);line-height:1.5;margin:0;}\n .ro-wrap .spec-cards{display:grid;grid-template-columns:repeat(auto-fill,minmax(min(180px,100%),1fr));gap:12px;margin-top:4px;}\n .ro-wrap .spec-card{background:var(--offwhite);border:1px solid var(--slate);border-radius:var(--radius);padding:16px;}\n .ro-wrap .spec-card .sc-label{font-size:13px !important;font-weight:700;letter-spacing:.08em;color:var(--sky);text-transform:uppercase;margin-bottom:4px;}\n .ro-wrap .spec-card .sc-value{font-size:20px !important;font-weight:600;color:var(--deep);margin-bottom:4px;}\n .ro-wrap .spec-card .sc-note{font-size:15px !important;color:var(--muted);}\n @media(max-width:640px){\n .ro-wrap .ro-hero{padding:36px 24px 32px;}\n .ro-wrap .ro-section{padding:28px 20px;}\n .ro-wrap .ro-feature-grid,.ro-wrap .faucet-grid,.ro-wrap .filter-schedule,.ro-wrap .spec-cards{grid-template-columns:1fr;}\n .ro-wrap .benefits-strip{flex-direction:column;}\n .ro-wrap .benefit-item{border-right:none;border-bottom:1px solid rgba(255,255,255,.1);}\n }\n \/* ── Nuclear override — force all text inside ro-wrap to be readable ── *\/\n .ro-wrap p,\n .ro-wrap li,\n .ro-wrap td,\n .ro-wrap th,\n .ro-wrap .ro-section \u003e p {\n font-size: 18px !important;\n line-height: 1.6 !important;\n }\n .ro-wrap .ro-section \u003e p,\n .ro-wrap .ro-callout p,\n .ro-wrap .stage-body p,\n .ro-wrap .ro-feature-card p,\n .ro-wrap .schedule-card p,\n .ro-wrap .faucet-card p,\n .ro-wrap .spec-card .sc-note,\n .ro-wrap .pro-tip p {\n font-size: 18px !important;\n line-height: 1.6 !important;\n }\n .ro-wrap h2 { font-size: clamp(26px,4vw,40px) !important; line-height:1.15 !important; }\n .ro-wrap h3 { font-size: 20px !important; line-height:1.3 !important; }\n .ro-wrap h4 { font-size: 18px !important; line-height:1.3 !important; }\n .ro-wrap .ro-label,\n .ro-wrap .stage-tag,\n .ro-wrap .sc-label { font-size: 14px !important; }\n .ro-wrap .ro-title { font-size: 24px !important; }\n .ro-wrap .interval { font-size: 22px !important; }\n .ro-wrap .stage-num { font-size: 16px !important; }\n .ro-wrap .ro-eyebrow { font-size: 14px !important; }\n .ro-wrap .ro-badge { font-size: 15px !important; }\n\u003c\/style\u003e\n\u003cdiv class=\"ro-wrap\"\u003e\n\n\u003cdiv class=\"ro-callout\"\u003e\nThe Watts 1R-1Y-1B Kwik-Change WQC4RO11 Annual Replacement Filter Kit delivers a complete three-stage pre-filtration refresh for your 11-inch 50 GPD reverse osmosis system with proprietary quarter-turn cartridges. This kit includes one sediment filter (WQCSC11), one carbon block filter (WQCCC11), and one granulated activated carbon filter (WQCGAC11) to restore chlorine reduction, taste and odor control, and sediment removal for another year of clean water.\n\u003c\/div\u003e\n\n\u003cdiv class=\"ro-section\"\u003e\n\u003cdiv class=\"ro-label\"\u003eSPECIFICATIONS\u003c\/div\u003e\n\u003ch2 class=\"ro-title\"\u003eFilter Kit Overview\u003c\/h2\u003e\n\u003cdiv class=\"spec-cards\"\u003e\n\u003cdiv class=\"spec-card\"\u003e\n\u003cdiv class=\"sc-label\"\u003eFilters Included\u003c\/div\u003e\n\u003cdiv class=\"sc-value\"\u003e3 Cartridges\u003c\/div\u003e\n\u003cdiv class=\"sc-note\"\u003eWQCSC11, WQCCC11, WQCGAC11\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"spec-card\"\u003e\n\u003cdiv class=\"sc-label\"\u003eCartridge Size\u003c\/div\u003e\n\u003cdiv class=\"sc-value\"\u003e11 Inch\u003c\/div\u003e\n\u003cdiv class=\"sc-note\"\u003eProprietary Kwik-Change format\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"spec-card\"\u003e\n\u003cdiv class=\"sc-label\"\u003eSystem Capacity\u003c\/div\u003e\n\u003cdiv class=\"sc-value\"\u003e50 GPD\u003c\/div\u003e\n\u003cdiv class=\"sc-note\"\u003eDesigned for WQC4RO11 systems\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"spec-card\"\u003e\n\u003cdiv class=\"sc-label\"\u003eReplacement Cycle\u003c\/div\u003e\n\u003cdiv class=\"sc-value\"\u003eAnnual\u003c\/div\u003e\n\u003cdiv class=\"sc-note\"\u003e12-month service interval\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"spec-card\"\u003e\n\u003cdiv class=\"sc-label\"\u003eInstallation Method\u003c\/div\u003e\n\u003cdiv class=\"sc-value\"\u003eQuarter-Turn\u003c\/div\u003e\n\u003cdiv class=\"sc-note\"\u003eKwik-Change connection system\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"spec-card\"\u003e\n\u003cdiv class=\"sc-label\"\u003eMembrane Included\u003c\/div\u003e\n\u003cdiv class=\"sc-value\"\u003eNo\u003c\/div\u003e\n\u003cdiv class=\"sc-note\"\u003ePre-filters only, membrane sold separately\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"ro-section\"\u003e\n\u003cdiv class=\"ro-label\"\u003eTECHNICAL DETAILS\u003c\/div\u003e\n\u003ch2 class=\"ro-title\"\u003eIndividual Filter Specifications\u003c\/h2\u003e\n\u003ctable class=\"specs-table\"\u003e\n\u003ctr\u003e\n\u003ctd\u003eWQCSC11 Sediment Filter\u003c\/td\u003e\n\u003ctd\u003e5 micron nominal, removes dirt, rust, sediment\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWQCCC11 Carbon Block\u003c\/td\u003e\n\u003ctd\u003e10 micron nominal, removes chlorine, taste, odor\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWQCGAC11 GAC Filter\u003c\/td\u003e\n\u003ctd\u003e10 micron nominal, granulated activated carbon for chlorine and taste reduction\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSeal Design\u003c\/td\u003e\n\u003ctd\u003eDouble O-rings for leak-free operation\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInternal Valves\u003c\/td\u003e\n\u003ctd\u003eAutomatic shut-off when cartridges are removed\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eConnection Type\u003c\/td\u003e\n\u003ctd\u003eProprietary Watts Kwik-Change 1\/4-turn mount\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eService Life\u003c\/td\u003e\n\u003ctd\u003e6-12 months depending on water quality and usage\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"ro-section\"\u003e\n\u003cdiv class=\"ro-label\"\u003eCOMPATIBILITY \u0026amp; APPLICATIONS\u003c\/div\u003e\n\u003ch2 class=\"ro-title\"\u003eSystem Compatibility\u003c\/h2\u003e\n\u003cp\u003eThis annual replacement filter kit is engineered specifically for Watts WQC4RO11 11-inch reverse osmosis systems with Kwik-Change cartridge housings. The proprietary quarter-turn design is not compatible with standard 10-inch cartridge housings or Watts Premier branded systems. These filters handle the critical pre-treatment stages before water reaches the RO membrane, removing sediment that can clog the membrane and chlorine that can degrade it. Suitable for residential under-sink installations, whole-house RO applications, and point-of-use drinking water systems where the Watts Kwik-Change platform is installed. Verify your system uses 11-inch Kwik-Change housings before ordering.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"pro-tip\"\u003e\n💧 The internal shut-off valves in Watts Kwik-Change housings let you swap cartridges without turning off water or depressurizing the system, but you'll still get better results if you relieve pressure first and flush the new filters for 5 minutes before use.\n\u003c\/div\u003e\n\n\u003c\/div\u003e","brand":"Isopure Water","offers":[{"title":"Default Title","offer_id":37752338940075,"sku":"Birds (1)R (1)Y (1)B","price":98.07,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0446\/7677\/6098\/files\/product-6128771268779-padded.jpg?v=1791927585"},{"product_id":"watts-1r-1y-kwik-change-wqc4ro11-bi-annual-replacement-filter-kit","title":"Watts (1R-1Y) Kwik-Change WQC4RO11 Bi-Annual Replacement Filter Kit","description":"\n\u003clink href=\"https:\/\/fonts.googleapis.com\/css2?family=DM+Serif+Display:ital@0;1\u0026amp;family=DM+Sans:wght@300;400;500;600\u0026amp;display=swap\" rel=\"stylesheet\"\u003e\n\u003cstyle\u003e\n .ro-wrap {\n --deep:#0a1628;--ocean:#0f3460;--blue:#1565c0;--sky:#2196f3;--aqua:#4dd0e1;\n --white:#ffffff;--offwhite:#f2f7fc;--slate:#dce8f5;--text:#0d1f38;--muted:#4a6280;\n --gold:#f59e0b;--radius:12px;\n font-family:'DM Sans',sans-serif;color:var(--text);line-height:1.6;-webkit-font-smoothing:antialiased;overflow-wrap:break-word;word-break:break-word;min-width:0;\n }\n .ro-wrap .ro-hero{background:linear-gradient(135deg,var(--deep) 0%,var(--ocean) 50%,#1a5276 100%);color:var(--white);padding:52px 40px 44px;position:relative;overflow:hidden;border-radius:var(--radius) var(--radius) 0 0;}\n .ro-wrap .ro-hero::before{content:'';position:absolute;inset:0;background:radial-gradient(ellipse 70% 55% at 95% 45%,rgba(77,208,225,.15) 0%,transparent 65%),radial-gradient(ellipse 40% 40% at 5% 80%,rgba(255,255,255,.05) 0%,transparent 60%);pointer-events:none;}\n .ro-wrap .ro-eyebrow{font-size:13px !important;font-weight:600;letter-spacing:.18em;text-transform:uppercase;color:var(--aqua);margin-bottom:12px;}\n .ro-wrap .ro-hero h2{font-family:'DM Serif Display',serif;font-size:clamp(26px,4vw,40px) !important;line-height:1.15;font-weight:400;margin-bottom:16px;color:var(--white);}\n .ro-wrap .ro-hero h2 em{font-style:italic;color:var(--aqua);}\n .ro-wrap .ro-tagline{font-size:18px !important;color:rgba(255,255,255,.75);font-weight:300;margin-bottom:28px;}\n .ro-wrap .ro-badges{display:flex;flex-wrap:wrap;gap:10px;}\n .ro-wrap .ro-badge{display:inline-flex;align-items:center;gap:6px;background:rgba(255,255,255,.12);border:1px solid rgba(255,255,255,.2);color:var(--white);font-size:15px !important;font-weight:500;padding:6px 14px;border-radius:40px;backdrop-filter:blur(6px);}\n .ro-wrap .ro-callout{background:var(--offwhite);border-left:4px solid var(--sky);padding:20px 24px;}\n .ro-wrap .ro-callout p{font-size:18px !important;color:var(--text);line-height:1.7;margin:0;}\n .ro-wrap .ro-callout strong{color:var(--ocean);}\n .ro-wrap .ro-section{padding:36px 40px;border-bottom:1px solid var(--slate);}\n .ro-wrap .ro-label{font-size:13px !important;font-weight:700;letter-spacing:.2em;text-transform:uppercase;color:var(--sky);margin-bottom:8px;}\n .ro-wrap .ro-title{font-family:'DM Serif Display',serif;font-size:24px !important;color:var(--deep);margin-bottom:20px;font-weight:400;}\n .ro-wrap .stage-pipeline{display:flex;flex-direction:column;gap:0;margin-top:4px;}\n .ro-wrap .stage-row{display:flex;flex-direction:row;gap:12px;position:relative;min-width:0;align-items:flex-start;width:100%;box-sizing:border-box;}\n .ro-wrap .stage-row:not(:last-child) .stage-line{position:absolute;left:17px;top:40px;bottom:0;width:2px;background:var(--slate);}\n .ro-wrap .stage-num{width:36px;height:36px;min-width:36px;max-width:36px;border-radius:50%;background:linear-gradient(135deg,var(--ocean),var(--sky));color:white;display:flex;align-items:center;justify-content:center;font-size:16px !important;font-weight:700;flex:0 0 36px;position:relative;z-index:1;margin-top:16px;}\n .ro-wrap .stage-body{background:var(--offwhite);border:1px solid var(--slate);border-radius:var(--radius);padding:16px 18px;margin-bottom:12px;flex:1 1 0;min-width:0;overflow:hidden;overflow-wrap:break-word;word-break:break-word;box-sizing:border-box;}\n .ro-wrap .stage-body h3{font-size:20px !important;font-weight:600;color:var(--deep);margin-bottom:8px;margin-top:6px;}\n .ro-wrap .stage-tag{display:block;font-size:12px !important;font-weight:700;letter-spacing:.04em;text-transform:uppercase;background:var(--slate);color:var(--ocean);padding:3px 8px;border-radius:4px;margin-bottom:8px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;max-width:100%;line-height:1.5 !important;box-sizing:border-box;}\n .ro-wrap .stage-body p{font-size:18px !important;color:var(--muted);line-height:1.6;margin:0;display:block;}\n .ro-wrap .stage-body .stage-part{font-size:15px !important;color:var(--sky);margin-top:6px;font-weight:500;}\n .ro-wrap .specs-table{width:100%;border-collapse:collapse;font-size:18px !important;}\n .ro-wrap .specs-table tr{border-bottom:1px solid var(--slate);}\n .ro-wrap .specs-table tr:last-child{border-bottom:none;}\n .ro-wrap .specs-table td{padding:11px 6px;vertical-align:top;}\n .ro-wrap .specs-table td:first-child{font-weight:500;color:var(--deep);width:44%;padding-right:16px;}\n .ro-wrap .specs-table td:last-child{color:var(--muted);}\n .ro-wrap .specs-table tr:hover td{background:var(--offwhite);}\n .ro-wrap .conditions-table{width:100%;border-collapse:collapse;font-size:18px !important;margin-top:4px;}\n .ro-wrap .conditions-table th{background:var(--deep);color:var(--white);font-size:15px !important;font-weight:600;letter-spacing:.06em;text-transform:uppercase;padding:10px 12px;text-align:left;}\n .ro-wrap .conditions-table th:first-child{border-radius:var(--radius) 0 0 0;}\n .ro-wrap .conditions-table th:last-child{border-radius:0 var(--radius) 0 0;}\n .ro-wrap .conditions-table td{padding:10px 12px;border-bottom:1px solid var(--slate);color:var(--text);}\n .ro-wrap .conditions-table tr:nth-child(even) td{background:var(--offwhite);}\n .ro-wrap .ro-feature-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(min(220px,100%),1fr));gap:16px;margin-top:4px;}\n .ro-wrap .ro-feature-card{background:var(--offwhite);border:1px solid var(--slate);border-radius:var(--radius);padding:20px 18px;}\n .ro-wrap .ro-feat-icon{width:40px;height:40px;background:linear-gradient(135deg,var(--ocean),var(--sky));border-radius:10px;display:flex;align-items:center;justify-content:center;margin-bottom:12px;}\n .ro-wrap .ro-feature-card h3{font-size:20px !important;font-weight:600;color:var(--deep);margin-bottom:6px;}\n .ro-wrap .ro-feature-card p{font-size:18px !important;color:var(--muted);line-height:1.55;margin:0;}\n .ro-wrap .pro-tip{display:block;background:#fffbeb;border:1px solid #f5d87a;border-radius:var(--radius);padding:18px 20px;margin-top:20px;box-sizing:border-box;width:100% !important;}\n .ro-wrap .pro-tip-icon{font-size:22px !important;display:inline;margin-right:8px;line-height:1.6 !important;}\n .ro-wrap .pro-tip p{font-size:18px !important;color:#5a4500;line-height:1.6 !important;margin:0;display:block;width:100%;}\n .ro-wrap .pro-tip strong{color:#3d2e00;}\n .ro-wrap .install-steps{counter-reset:step;list-style:none;padding:0;margin:4px 0 0;display:flex;flex-direction:column;gap:14px;}\n .ro-wrap .install-steps li{counter-increment:step;display:flex;align-items:flex-start;gap:14px;font-size:18px !important;color:var(--text);}\n .ro-wrap .install-steps li::before{content:counter(step);display:flex;align-items:center;justify-content:center;width:28px;height:28px;border-radius:50%;background:var(--ocean);color:white;font-size:15px !important;font-weight:700;flex-shrink:0;margin-top:1px;}\n .ro-wrap .filter-schedule{display:grid;grid-template-columns:repeat(auto-fill,minmax(min(180px,100%),1fr));gap:12px;margin-top:4px;}\n .ro-wrap .schedule-card{background:var(--offwhite);border:1px solid var(--slate);border-radius:var(--radius);padding:16px;}\n .ro-wrap .schedule-card .interval{font-size:22px !important;font-family:'DM Serif Display',serif;color:var(--sky);font-weight:400;margin-bottom:4px;}\n .ro-wrap .schedule-card h4{font-size:18px !important;font-weight:600;color:var(--deep);margin-bottom:4px;}\n .ro-wrap .schedule-card p{font-size:15px !important;color:var(--muted);margin:0;line-height:1.45;}\n .ro-wrap .benefits-strip{display:flex;flex-wrap:wrap;background:var(--deep);color:var(--white);border-radius:0 0 var(--radius) var(--radius);overflow:hidden;}\n .ro-wrap .benefit-item{flex:1 1 200px;padding:24px 22px;border-right:1px solid rgba(255,255,255,.1);}\n .ro-wrap .benefit-item:last-child{border-right:none;}\n .ro-wrap .bi-icon{font-size:22px !important;margin-bottom:10px;}\n .ro-wrap .benefit-item h4{font-size:15px !important;font-weight:600;color:var(--aqua);margin-bottom:5px;text-transform:uppercase;letter-spacing:.05em;}\n .ro-wrap .benefit-item p{font-size:15px !important;color:rgba(255,255,255,.65);line-height:1.55;margin:0;}\n .ro-wrap .faucet-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(min(200px,100%),1fr));gap:16px;margin-top:4px;}\n .ro-wrap .faucet-card{border:2px solid var(--slate);border-radius:var(--radius);padding:18px;text-align:center;}\n .ro-wrap .faucet-icon{font-size:28px !important;margin-bottom:10px;}\n .ro-wrap .faucet-card h4{font-size:18px !important;font-weight:600;color:var(--deep);margin-bottom:6px;}\n .ro-wrap .faucet-card p{font-size:15px !important;color:var(--muted);line-height:1.5;margin:0;}\n .ro-wrap .spec-cards{display:grid;grid-template-columns:repeat(auto-fill,minmax(min(180px,100%),1fr));gap:12px;margin-top:4px;}\n .ro-wrap .spec-card{background:var(--offwhite);border:1px solid var(--slate);border-radius:var(--radius);padding:16px;}\n .ro-wrap .spec-card .sc-label{font-size:13px !important;font-weight:700;letter-spacing:.08em;color:var(--sky);text-transform:uppercase;margin-bottom:4px;}\n .ro-wrap .spec-card .sc-value{font-size:20px !important;font-weight:600;color:var(--deep);margin-bottom:4px;}\n .ro-wrap .spec-card .sc-note{font-size:15px !important;color:var(--muted);}\n @media(max-width:640px){\n .ro-wrap .ro-hero{padding:36px 24px 32px;}\n .ro-wrap .ro-section{padding:28px 20px;}\n .ro-wrap .ro-feature-grid,.ro-wrap .faucet-grid,.ro-wrap .filter-schedule,.ro-wrap .spec-cards{grid-template-columns:1fr;}\n .ro-wrap .benefits-strip{flex-direction:column;}\n .ro-wrap .benefit-item{border-right:none;border-bottom:1px solid rgba(255,255,255,.1);}\n }\n \/* ── Nuclear override — force all text inside ro-wrap to be readable ── *\/\n .ro-wrap p,\n .ro-wrap li,\n .ro-wrap td,\n .ro-wrap th,\n .ro-wrap .ro-section \u003e p {\n font-size: 18px !important;\n line-height: 1.6 !important;\n }\n .ro-wrap .ro-section \u003e p,\n .ro-wrap .ro-callout p,\n .ro-wrap .stage-body p,\n .ro-wrap .ro-feature-card p,\n .ro-wrap .schedule-card p,\n .ro-wrap .faucet-card p,\n .ro-wrap .spec-card .sc-note,\n .ro-wrap .pro-tip p {\n font-size: 18px !important;\n line-height: 1.6 !important;\n }\n .ro-wrap h2 { font-size: clamp(26px,4vw,40px) !important; line-height:1.15 !important; }\n .ro-wrap h3 { font-size: 20px !important; line-height:1.3 !important; }\n .ro-wrap h4 { font-size: 18px !important; line-height:1.3 !important; }\n .ro-wrap .ro-label,\n .ro-wrap .stage-tag,\n .ro-wrap .sc-label { font-size: 14px !important; }\n .ro-wrap .ro-title { font-size: 24px !important; }\n .ro-wrap .interval { font-size: 22px !important; }\n .ro-wrap .stage-num { font-size: 16px !important; }\n .ro-wrap .ro-eyebrow { font-size: 14px !important; }\n .ro-wrap .ro-badge { font-size: 15px !important; }\n\u003c\/style\u003e\n\u003cdiv class=\"ro-wrap\"\u003e\n\n\u003cdiv class=\"ro-hero\"\u003e\n\u003cdiv class=\"ro-eyebrow\"\u003eWatts Kwik-Change Replacement Filter Kit\u003c\/div\u003e\n\u003ch2\u003e\n\u003cem\u003eWatts (1R-1Y) WQC4RO11\u003c\/em\u003e Bi-Annual Replacement Filter Kit\u003c\/h2\u003e\n\u003cdiv class=\"ro-tagline\"\u003eSix-month sediment and carbon block replacement set for Watts Kwik-Change reverse osmosis and whole-house systems\u003c\/div\u003e\n\u003cdiv class=\"ro-badges\"\u003e\n\u003cspan class=\"ro-badge\"\u003e✓ Tool-Free Quarter-Turn Installation\u003c\/span\u003e\n\u003cspan class=\"ro-badge\"\u003e✓ Dual O-Ring Leak Prevention\u003c\/span\u003e\n\u003cspan class=\"ro-badge\"\u003e✓ Automatic Shut-Off Valves\u003c\/span\u003e\n\u003cspan class=\"ro-badge\"\u003e✓ 6-Month Service Cycle\u003c\/span\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"ro-callout\"\u003e\n\u003cp\u003eThis Watts bi-annual replacement kit pairs the \u003cstrong\u003eWQCSC11 sediment filter (5 micron)\u003c\/strong\u003e with the \u003cstrong\u003eWQCCC11 carbon block filter (10 micron)\u003c\/strong\u003e to maintain consistent performance in your Kwik-Change system. The proprietary quarter-turn design and internal shut-off valves make filter replacement a clean, simple process every six months without tools or system depressurization.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"ro-section\"\u003e\n\u003cdiv class=\"ro-label\"\u003eKIT CONTENTS \u0026amp; SPECIFICATIONS\u003c\/div\u003e\n\u003ch3 class=\"ro-title\"\u003eWhat's Included in Your Replacement Set\u003c\/h3\u003e\n\u003cdiv class=\"ro-feature-grid\"\u003e\n\u003cdiv class=\"ro-feature-card\"\u003e\n\u003cdiv class=\"ro-feat-icon\"\u003e\u003cspan\u003e🔷\u003c\/span\u003e\u003c\/div\u003e\n\u003ch3\u003eWQCSC11 Sediment Filter\u003c\/h3\u003e\n\u003cp\u003eRemoves dirt, rust, and sediment at 5 micron nominal. First-stage protection for membrane and carbon media.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"ro-feature-card\"\u003e\n\u003cdiv class=\"ro-feat-icon\"\u003e\u003cspan\u003e🔶\u003c\/span\u003e\u003c\/div\u003e\n\u003ch3\u003eWQCCC11 Carbon Block\u003c\/h3\u003e\n\u003cp\u003eRemoves chlorine, taste, and odor at 10 micron nominal. Pre-treatment for RO membranes or standalone polishing.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"ro-feature-card\"\u003e\n\u003cdiv class=\"ro-feat-icon\"\u003e\u003cspan\u003e🔄\u003c\/span\u003e\u003c\/div\u003e\n\u003ch3\u003eQuarter-Turn Connection\u003c\/h3\u003e\n\u003cp\u003eWatts Kwik-Change cartridges install and remove with a simple 1\/4 turn. No wrenches, no thread sealant, no mess.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"ro-feature-card\"\u003e\n\u003cdiv class=\"ro-feat-icon\"\u003e\u003cspan\u003e🔒\u003c\/span\u003e\u003c\/div\u003e\n\u003ch3\u003eDual O-Ring Seal\u003c\/h3\u003e\n\u003cp\u003eDouble O-ring design eliminates leaks. Internal valves shut off water flow automatically when cartridges are removed.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"ro-feature-card\"\u003e\n\u003cdiv class=\"ro-feat-icon\"\u003e\u003cspan\u003e📏\u003c\/span\u003e\u003c\/div\u003e\n\u003ch3\u003e11-Inch Proprietary Size\u003c\/h3\u003e\n\u003cp\u003eStandard 11\" length for Watts Kwik-Change housings. Not compatible with standard 10\" cartridge housings.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"ro-feature-card\"\u003e\n\u003cdiv class=\"ro-feat-icon\"\u003e\u003cspan\u003e📅\u003c\/span\u003e\u003c\/div\u003e\n\u003ch3\u003e6-Month Replacement Cycle\u003c\/h3\u003e\n\u003cp\u003eDesigned for bi-annual replacement. Does not include RO membrane, which operates on a separate service schedule.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"ro-section\"\u003e\n\u003cdiv class=\"ro-label\"\u003eCOMPATIBILITY \u0026amp; APPLICATIONS\u003c\/div\u003e\n\u003ch3 class=\"ro-title\"\u003eSystem Compatibility\u003c\/h3\u003e\n\u003cp\u003eThis kit is designed for Watts Kwik-Change reverse osmosis systems and whole-house filtration systems that use the proprietary 11-inch Kwik-Change cartridge format. Compatible with Watts model 1R-1Y systems and other Kwik-Change configurations requiring WQCSC11 sediment and WQCCC11 carbon block filters. Verify your existing cartridge model numbers before ordering. This is a pre-filter set and does not include the RO membrane element.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"ro-callout\"\u003e\n\u003cp\u003eWatts Kwik-Change filters are engineered for residential and light commercial applications where consistent water quality and fast maintenance matter.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003c\/div\u003e","brand":"Isopure Water","offers":[{"title":"Default Title","offer_id":37752343199915,"sku":"Birds (1)R (1)Y","price":64.38,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0446\/7677\/6098\/files\/product-6128774447275-padded.jpg?v=1791927585"},{"product_id":"watts-1r-1y-1b-kwik-change-wqc4ro13-annual-replacement-filter-kit-for-13-100-gpd-system-membrane-not-included","title":"Watts 1R-1Y-1B Kwik-Change WQC4RO13 Annual Replacement Filter Kit for 13\" 100 GPD System - Membrane Not Included","description":"\n\u003clink 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var(--radius);overflow:hidden;}\n .ro-wrap .benefit-item{flex:1 1 200px;padding:24px 22px;border-right:1px solid rgba(255,255,255,.1);}\n .ro-wrap .benefit-item:last-child{border-right:none;}\n .ro-wrap .bi-icon{font-size:22px !important;margin-bottom:10px;}\n .ro-wrap .benefit-item h4{font-size:15px !important;font-weight:600;color:var(--aqua);margin-bottom:5px;text-transform:uppercase;letter-spacing:.05em;}\n .ro-wrap .benefit-item p{font-size:15px !important;color:rgba(255,255,255,.65);line-height:1.55;margin:0;}\n .ro-wrap .faucet-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(min(200px,100%),1fr));gap:16px;margin-top:4px;}\n .ro-wrap .faucet-card{border:2px solid var(--slate);border-radius:var(--radius);padding:18px;text-align:center;}\n .ro-wrap .faucet-icon{font-size:28px !important;margin-bottom:10px;}\n .ro-wrap .faucet-card h4{font-size:18px !important;font-weight:600;color:var(--deep);margin-bottom:6px;}\n .ro-wrap .faucet-card p{font-size:15px 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.benefit-item{border-right:none;border-bottom:1px solid rgba(255,255,255,.1);}\n }\n \/* ── Nuclear override — force all text inside ro-wrap to be readable ── *\/\n .ro-wrap p,\n .ro-wrap li,\n .ro-wrap td,\n .ro-wrap th,\n .ro-wrap .ro-section \u003e p {\n font-size: 18px !important;\n line-height: 1.6 !important;\n }\n .ro-wrap .ro-section \u003e p,\n .ro-wrap .ro-callout p,\n .ro-wrap .stage-body p,\n .ro-wrap .ro-feature-card p,\n .ro-wrap .schedule-card p,\n .ro-wrap .faucet-card p,\n .ro-wrap .spec-card .sc-note,\n .ro-wrap .pro-tip p {\n font-size: 18px !important;\n line-height: 1.6 !important;\n }\n .ro-wrap h2 { font-size: clamp(26px,4vw,40px) !important; line-height:1.15 !important; }\n .ro-wrap h3 { font-size: 20px !important; line-height:1.3 !important; }\n .ro-wrap h4 { font-size: 18px !important; line-height:1.3 !important; }\n .ro-wrap .ro-label,\n .ro-wrap .stage-tag,\n .ro-wrap .sc-label { font-size: 14px !important; }\n .ro-wrap .ro-title { font-size: 24px !important; }\n .ro-wrap .interval { font-size: 22px !important; }\n .ro-wrap .stage-num { font-size: 16px !important; }\n .ro-wrap .ro-eyebrow { font-size: 14px !important; }\n .ro-wrap .ro-badge { font-size: 15px !important; }\n\u003c\/style\u003e\n\u003cdiv class=\"ro-wrap\"\u003e\n \u003cdiv class=\"ro-callout\"\u003e\n The Watts 1R-1Y-1B WQC4RO13 annual replacement filter kit delivers three essential pre-filtration stages for your 13-inch 100 GPD reverse osmosis system using quick-change cartridge technology. Each cartridge features the Kwik-Change quarter-turn design with double o-rings and internal shutoff valves for leak-free maintenance.\n \u003c\/div\u003e\n\n \u003cdiv class=\"ro-section\"\u003e\n \u003cdiv class=\"ro-label\"\u003eSPECIFICATIONS\u003c\/div\u003e\n \u003ch2 class=\"ro-title\"\u003eKit Contents \u0026amp; Performance\u003c\/h2\u003e\n \u003ctable class=\"specs-table\"\u003e\n \u003ctr\u003e\n \u003ctd\u003eKit Model\u003c\/td\u003e\n \u003ctd\u003eWatts 1R-1Y-1B WQC4RO13\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003ctd\u003eStage 1 - Sediment\u003c\/td\u003e\n \u003ctd\u003eWQCSC13 (5 micron nominal)\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003ctd\u003eStage 2 - Carbon Block\u003c\/td\u003e\n \u003ctd\u003eWQCCC13 (10 micron nominal)\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003ctd\u003eStage 3 - GAC\u003c\/td\u003e\n \u003ctd\u003eWQCGAC13 (10 micron nominal)\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003ctd\u003eCartridge Height\u003c\/td\u003e\n \u003ctd\u003e13 inches\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003ctd\u003eSystem Compatibility\u003c\/td\u003e\n \u003ctd\u003e100 GPD 13-inch RO systems\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003ctd\u003eConnection Type\u003c\/td\u003e\n \u003ctd\u003e1\/4 turn quick-change\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003ctd\u003eReplacement Schedule\u003c\/td\u003e\n \u003ctd\u003eEvery 6 months\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003c\/table\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"ro-section\"\u003e\n \u003cdiv class=\"ro-label\"\u003eINSTALLATION \u0026amp; USE\u003c\/div\u003e\n \u003ch2 class=\"ro-title\"\u003eFilter Replacement Procedure\u003c\/h2\u003e\n \u003col class=\"install-steps\"\u003e\n \u003cli\u003eShut off water supply to the RO system and relieve system pressure by opening the dispensing faucet\u003c\/li\u003e\n \u003cli\u003eRotate each old cartridge 1\/4 turn counterclockwise to release from the manifold (internal valves automatically shut off water flow)\u003c\/li\u003e\n \u003cli\u003eRemove protective caps from new cartridges and align with manifold housings in proper order: sediment (WQCSC13), carbon block (WQCCC13), GAC (WQCGAC13)\u003c\/li\u003e\n \u003cli\u003ePush each new cartridge firmly into position and turn 1\/4 turn clockwise until it locks into place\u003c\/li\u003e\n \u003cli\u003eRestore water supply and check all connections for leaks before returning system to normal operation\u003c\/li\u003e\n \u003c\/ol\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"ro-section\"\u003e\n \u003cdiv class=\"ro-label\"\u003eCOMPATIBILITY\u003c\/div\u003e\n \u003ch2 class=\"ro-title\"\u003eSystem Requirements\u003c\/h2\u003e\n \u003cp\u003eThis Watts annual replacement kit is designed specifically for 13-inch Kwik-Change reverse osmosis systems rated at 100 gallons per day. The kit includes three pre-filtration cartridges but does not include the RO membrane element. Compatible with Watts WQC4RO systems and other manufacturers' 13-inch systems using the Kwik-Change quick-connect manifold design. Verify your current cartridge model numbers before ordering to ensure proper fit.\u003c\/p\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"pro-tip\"\u003e\n 🔧 \u003cstrong\u003ePro Tip:\u003c\/strong\u003e Write the installation date on each cartridge with a permanent marker before installing. The double o-ring seals eliminate the need for lubricant, but if you experience resistance during installation, a small amount of food-grade silicone grease on the outer o-ring can ease insertion without compromising the seal.\n \u003c\/div\u003e\n\u003c\/div\u003e","brand":"Isopure Water","offers":[{"title":"Default Title","offer_id":37847874470059,"sku":"WQCSC13\/WQCCC13\/WQCGAC13","price":102.86,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0446\/7677\/6098\/files\/product-6163846201515-padded.jpg?v=1777271257"},{"product_id":"watts-1r-1y-kwik-change-wqc4ro13-bi-annual-replacement-filter-kit","title":"Watts (1R-1Y) Kwik-Change WQC4RO13 Bi-Annual Replacement Filter Kit","description":"\n\u003clink href=\"https:\/\/fonts.googleapis.com\/css2?family=DM+Serif+Display:ital@0;1\u0026amp;family=DM+Sans:wght@300;400;500;600\u0026amp;display=swap\" rel=\"stylesheet\"\u003e\n\u003cstyle\u003e\n .ro-wrap {\n 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.benefit-item{border-right:none;border-bottom:1px solid rgba(255,255,255,.1);}\n }\n \/* ── Nuclear override — force all text inside ro-wrap to be readable ── *\/\n .ro-wrap p,\n .ro-wrap li,\n .ro-wrap td,\n .ro-wrap th,\n .ro-wrap .ro-section \u003e p {\n font-size: 18px !important;\n line-height: 1.6 !important;\n }\n .ro-wrap .ro-section \u003e p,\n .ro-wrap .ro-callout p,\n .ro-wrap .stage-body p,\n .ro-wrap .ro-feature-card p,\n .ro-wrap .schedule-card p,\n .ro-wrap .faucet-card p,\n .ro-wrap .spec-card .sc-note,\n .ro-wrap .pro-tip p {\n font-size: 18px !important;\n line-height: 1.6 !important;\n }\n .ro-wrap h2 { font-size: clamp(26px,4vw,40px) !important; line-height:1.15 !important; }\n .ro-wrap h3 { font-size: 20px !important; line-height:1.3 !important; }\n .ro-wrap h4 { font-size: 18px !important; line-height:1.3 !important; }\n .ro-wrap .ro-label,\n .ro-wrap .stage-tag,\n .ro-wrap .sc-label { font-size: 14px !important; }\n .ro-wrap .ro-title { font-size: 24px !important; }\n .ro-wrap .interval { font-size: 22px !important; }\n .ro-wrap .stage-num { font-size: 16px !important; }\n .ro-wrap .ro-eyebrow { font-size: 14px !important; }\n .ro-wrap .ro-badge { font-size: 15px !important; }\n\u003c\/style\u003e\n\u003cdiv class=\"ro-wrap\"\u003e\n\n\u003cdiv class=\"ro-callout\"\u003e\nThe Watts 1R-1Y WQC4RO13 Kwik-Change Bi-Annual Replacement Filter Kit includes two essential pre-filters that protect your reverse osmosis membrane and improve water quality with a simple quarter-turn installation. This 6-month replacement kit features a 5-micron sediment filter and a 10-micron carbon block filter, both designed with double o-ring seals and internal shutoff valves for leak-free cartridge changes.\n\u003c\/div\u003e\n\n\u003cdiv class=\"ro-section\"\u003e\n\u003cdiv class=\"ro-label\"\u003eSPECIFICATIONS\u003c\/div\u003e\n\u003ch2 class=\"ro-title\"\u003eFilter Kit Details\u003c\/h2\u003e\n\u003cdiv class=\"spec-cards\"\u003e\n\u003cdiv class=\"spec-card\"\u003e\n\u003cdiv class=\"sc-label\"\u003eKit Contents\u003c\/div\u003e\n\u003cdiv class=\"sc-value\"\u003e2 Filters\u003c\/div\u003e\n\u003cdiv class=\"sc-note\"\u003eWQCSC13 sediment + WQCCC13 carbon\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"spec-card\"\u003e\n\u003cdiv class=\"sc-label\"\u003eCartridge Height\u003c\/div\u003e\n\u003cdiv class=\"sc-value\"\u003e13 inches\u003c\/div\u003e\n\u003cdiv class=\"sc-note\"\u003eStandard Watts Kwik-Change size\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"spec-card\"\u003e\n\u003cdiv class=\"sc-label\"\u003eInstallation\u003c\/div\u003e\n\u003cdiv class=\"sc-value\"\u003e1\/4 Turn\u003c\/div\u003e\n\u003cdiv class=\"sc-note\"\u003eKwik-Change twist-lock design\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"spec-card\"\u003e\n\u003cdiv class=\"sc-label\"\u003eReplacement Cycle\u003c\/div\u003e\n\u003cdiv class=\"sc-value\"\u003e6 Months\u003c\/div\u003e\n\u003cdiv class=\"sc-note\"\u003eBi-annual filter schedule\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"spec-card\"\u003e\n\u003cdiv class=\"sc-label\"\u003eSediment Filtration\u003c\/div\u003e\n\u003cdiv class=\"sc-value\"\u003e5 Micron\u003c\/div\u003e\n\u003cdiv class=\"sc-note\"\u003eNominal rating, removes dirt and rust\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"spec-card\"\u003e\n\u003cdiv class=\"sc-label\"\u003eCarbon Filtration\u003c\/div\u003e\n\u003cdiv class=\"sc-value\"\u003e10 Micron\u003c\/div\u003e\n\u003cdiv class=\"sc-note\"\u003eNominal rating, removes chlorine and taste\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"ro-section\"\u003e\n\u003cdiv class=\"ro-label\"\u003eTECHNICAL DETAILS\u003c\/div\u003e\n\u003ch2 class=\"ro-title\"\u003eFilter Specifications\u003c\/h2\u003e\n\u003ctable class=\"specs-table\"\u003e\n\u003ctr\u003e\n\u003ctd\u003eModel Number\u003c\/td\u003e\n\u003ctd\u003eWatts 1R-1Y WQC4RO13\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eStage 1 Filter (WQCSC13)\u003c\/td\u003e\n\u003ctd\u003e5 micron sediment, removes dirt, rust, and particulate matter\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eStage 2 Filter (WQCCC13)\u003c\/td\u003e\n\u003ctd\u003e10 micron carbon block, removes chlorine, taste, and odor\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSeal Design\u003c\/td\u003e\n\u003ctd\u003eDouble o-ring construction for leak prevention\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eShutoff Feature\u003c\/td\u003e\n\u003ctd\u003eInternal valves stop water flow during cartridge removal\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInstallation Method\u003c\/td\u003e\n\u003ctd\u003eQuarter-turn Kwik-Change twist-lock system\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eService Life\u003c\/td\u003e\n\u003ctd\u003e6 months under typical municipal water conditions\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"ro-section\"\u003e\n\u003cdiv class=\"ro-label\"\u003eCOMPATIBILITY \u0026amp; APPLICATIONS\u003c\/div\u003e\n\u003ch2 class=\"ro-title\"\u003eSystem Compatibility\u003c\/h2\u003e\n\u003cp\u003eThis Watts 1R-1Y WQC4RO13 filter kit is designed for Watts Kwik-Change reverse osmosis systems that use 13-inch cartridges with quarter-turn housings. Not compatible with Watts Premier RO System model WQCSC13. The WQCSC13 sediment filter should be installed as the first stage to protect downstream filters from particulate damage, while the WQCCC13 carbon block filter serves as the second stage to remove chlorine before water reaches the RO membrane. Both filters feature the tool-free Kwik-Change design that allows homeowners to perform maintenance without shutting off the entire system or dealing with complicated filter wrenches.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"pro-tip\"\u003e\n💧 The internal shutoff valves in Kwik-Change cartridges mean you can swap filters without turning off your water supply or draining the system. Just twist counterclockwise to remove and clockwise to install—the double o-rings create a reliable seal every time.\n\u003c\/div\u003e\n\n\u003c\/div\u003e","brand":"Isopure Water","offers":[{"title":"Default Title","offer_id":37847919460523,"sku":"WQCSC13\/WQCCC13","price":67.22,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0446\/7677\/6098\/files\/product-6163857080491-padded.jpg?v=1777270766"},{"product_id":"watts-wqc4ro-filterkit2-kwik-change-11-pre-and-post-filter-replacement-5-pack","title":"Watts (WQC4RO-FILTERKIT2) Kwik Change 11\" Pre- and Post- Filter Replacement 5 Pack","description":"\n\u003clink href=\"https:\/\/fonts.googleapis.com\/css2?family=DM+Serif+Display:ital@0;1\u0026amp;family=DM+Sans:wght@300;400;500;600\u0026amp;display=swap\" rel=\"stylesheet\"\u003e\n\u003cstyle\u003e\n .ro-wrap {\n --deep:#0a1628;--ocean:#0f3460;--blue:#1565c0;--sky:#2196f3;--aqua:#4dd0e1;\n 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p{font-size:15px !important;color:rgba(255,255,255,.65);line-height:1.55;margin:0;}\n .ro-wrap .faucet-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(min(200px,100%),1fr));gap:16px;margin-top:4px;}\n .ro-wrap .faucet-card{border:2px solid var(--slate);border-radius:var(--radius);padding:18px;text-align:center;}\n .ro-wrap .faucet-icon{font-size:28px !important;margin-bottom:10px;}\n .ro-wrap .faucet-card h4{font-size:18px !important;font-weight:600;color:var(--deep);margin-bottom:6px;}\n .ro-wrap .faucet-card p{font-size:15px !important;color:var(--muted);line-height:1.5;margin:0;}\n .ro-wrap .spec-cards{display:grid;grid-template-columns:repeat(auto-fill,minmax(min(180px,100%),1fr));gap:12px;margin-top:4px;}\n .ro-wrap .spec-card{background:var(--offwhite);border:1px solid var(--slate);border-radius:var(--radius);padding:16px;}\n .ro-wrap .spec-card .sc-label{font-size:13px !important;font-weight:700;letter-spacing:.08em;color:var(--sky);text-transform:uppercase;margin-bottom:4px;}\n .ro-wrap .spec-card .sc-value{font-size:20px !important;font-weight:600;color:var(--deep);margin-bottom:4px;}\n .ro-wrap .spec-card .sc-note{font-size:15px !important;color:var(--muted);}\n @media(max-width:640px){\n .ro-wrap .ro-hero{padding:36px 24px 32px;}\n .ro-wrap .ro-section{padding:28px 20px;}\n .ro-wrap .ro-feature-grid,.ro-wrap .faucet-grid,.ro-wrap .filter-schedule,.ro-wrap .spec-cards{grid-template-columns:1fr;}\n .ro-wrap .benefits-strip{flex-direction:column;}\n .ro-wrap .benefit-item{border-right:none;border-bottom:1px solid rgba(255,255,255,.1);}\n }\n \/* ── Nuclear override — force all text inside ro-wrap to be readable ── *\/\n .ro-wrap p,\n .ro-wrap li,\n .ro-wrap td,\n .ro-wrap th,\n .ro-wrap .ro-section \u003e p {\n font-size: 18px !important;\n line-height: 1.6 !important;\n }\n .ro-wrap .ro-section \u003e p,\n .ro-wrap .ro-callout p,\n .ro-wrap .stage-body p,\n .ro-wrap .ro-feature-card p,\n .ro-wrap .schedule-card p,\n .ro-wrap .faucet-card p,\n .ro-wrap .spec-card .sc-note,\n .ro-wrap .pro-tip p {\n font-size: 18px !important;\n line-height: 1.6 !important;\n }\n .ro-wrap h2 { font-size: clamp(26px,4vw,40px) !important; line-height:1.15 !important; }\n .ro-wrap h3 { font-size: 20px !important; line-height:1.3 !important; }\n .ro-wrap h4 { font-size: 18px !important; line-height:1.3 !important; }\n .ro-wrap .ro-label,\n .ro-wrap .stage-tag,\n .ro-wrap .sc-label { font-size: 14px !important; }\n .ro-wrap .ro-title { font-size: 24px !important; }\n .ro-wrap .interval { font-size: 22px !important; }\n .ro-wrap .stage-num { font-size: 16px !important; }\n .ro-wrap .ro-eyebrow { font-size: 14px !important; }\n .ro-wrap .ro-badge { font-size: 15px !important; }\n\u003c\/style\u003e\n\u003cdiv class=\"ro-wrap\"\u003e\n \u003cdiv class=\"ro-callout\"\u003e\n The Watts WQC4RO-FILTERKIT2 Kwik Change 11\" Filter Replacement 5 Pack delivers complete sediment and carbon filtration for your reverse osmosis system with no-leak double o-ring seals and tool-free cartridge swaps. This bundle includes two sediment filters and three carbon filters engineered to protect your RO membrane and polish your drinking water for six months of reliable performance.\n \u003c\/div\u003e\n\n \u003cdiv class=\"ro-section\"\u003e\n \u003cdiv class=\"ro-label\"\u003eSPECIFICATIONS\u003c\/div\u003e\n \u003ch2 class=\"ro-title\"\u003eWhat's Included in the WQC4RO-FILTERKIT2\u003c\/h2\u003e\n \u003ctable class=\"specs-table\"\u003e\n \u003ctr\u003e\n \u003ctd\u003eModel Number\u003c\/td\u003e\n \u003ctd\u003eWQC4RO-FILTERKIT2\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003ctd\u003eSediment Filters (WQCSC11)\u003c\/td\u003e\n \u003ctd\u003e2 cartridges, 5 micron nominal, removes dirt, rust, and sediment\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003ctd\u003eCarbon Block Filters (WQCCC11)\u003c\/td\u003e\n \u003ctd\u003e2 cartridges, 10 micron nominal, removes chlorine, taste, and odor\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003ctd\u003eGAC Filters (WQCGAC11)\u003c\/td\u003e\n \u003ctd\u003e1 cartridge, 10 micron nominal, granulated activated carbon for taste and odor\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003ctd\u003eFilter Length\u003c\/td\u003e\n \u003ctd\u003e11 inches\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003ctd\u003eSeal Design\u003c\/td\u003e\n \u003ctd\u003eDouble o-rings with internal shut-off valves\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003ctd\u003eReplacement Interval\u003c\/td\u003e\n \u003ctd\u003eEvery 6 months\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003ctd\u003eCompatibility\u003c\/td\u003e\n \u003ctd\u003eWatts Kwik Change 11\" housings and compatible RO systems\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003c\/table\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"ro-section\"\u003e\n \u003cdiv class=\"ro-label\"\u003eINSTALLATION \u0026amp; USE\u003c\/div\u003e\n \u003ch2 class=\"ro-title\"\u003eHow to Replace Watts Kwik Change Filters\u003c\/h2\u003e\n \u003col class=\"install-steps\"\u003e\n \u003cli\u003eShut off water supply to your RO system and relieve pressure by opening the faucet until water stops flowing.\u003c\/li\u003e\n \u003cli\u003eTwist the Kwik Change cartridges counterclockwise to remove. The internal shut-off valves will stop water flow automatically.\u003c\/li\u003e\n \u003cli\u003eInstall new filters by aligning and twisting clockwise until they lock into place. Double o-rings will seal without tools.\u003c\/li\u003e\n \u003cli\u003eTurn water supply back on and check for leaks. Flush the system for 5 minutes before use.\u003c\/li\u003e\n \u003cli\u003eMark your calendar to replace filters again in 6 months for optimal performance and membrane protection.\u003c\/li\u003e\n \u003c\/ol\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"ro-section\"\u003e\n \u003cdiv class=\"ro-label\"\u003eCOMPATIBILITY\u003c\/div\u003e\n \u003ch2 class=\"ro-title\"\u003eDesigned for Watts Kwik Change Systems\u003c\/h2\u003e\n \u003cp\u003eThe WQC4RO-FILTERKIT2 is engineered specifically for Watts Kwik Change 11-inch filter housings commonly found in under-sink reverse osmosis systems. The WQCSC11 sediment filters typically install as Stage 1 pre-filters, while the WQCCC11 carbon block and WQCGAC11 granulated activated carbon filters serve as Stage 2 pre-filters and post-filters. Verify your housing accepts 11-inch Kwik Change cartridges before ordering. This kit is not compatible with standard threaded housings or other manufacturers' quick-change systems.\u003c\/p\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"pro-tip\"\u003e\n 🔧 \u003cstrong\u003ePro Tip:\u003c\/strong\u003e Replace sediment filters more frequently if you notice pressure drops or cloudy water, especially in areas with heavy sediment or well water. The carbon filters can often last the full 6 months, but sediment filters may clog earlier depending on your source water quality.\n \u003c\/div\u003e\n\u003c\/div\u003e","brand":"Isopure Water","offers":[{"title":"Default Title","offer_id":39885530169515,"sku":"WQC4RO-FILTERKIT2","price":162.44,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0446\/7677\/6098\/files\/product-6696224882859-padded.jpg?v=1791927625"},{"product_id":"watts-premier-p531417-531417-voc-4-stage-system-ro-pure-plus-top-mount-twist-faucet","title":"Watts Premier (531417) VOC 4 Stage System RO Pure Plus, Top-Mount Twist Faucet","description":"\n\u003clink href=\"https:\/\/fonts.googleapis.com\/css2?family=DM+Serif+Display:ital@0;1\u0026amp;family=DM+Sans:wght@300;400;500;600\u0026amp;display=swap\" rel=\"stylesheet\"\u003e\n\u003cstyle\u003e\n .ro-wrap {\n --deep:#0a1628;--ocean:#0f3460;--blue:#1565c0;--sky:#2196f3;--aqua:#4dd0e1;\n 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tr{border-bottom:1px solid var(--slate);}\n .ro-wrap .specs-table tr:last-child{border-bottom:none;}\n .ro-wrap .specs-table td{padding:11px 6px;vertical-align:top;}\n .ro-wrap .specs-table td:first-child{font-weight:500;color:var(--deep);width:44%;padding-right:16px;}\n .ro-wrap .specs-table td:last-child{color:var(--muted);}\n .ro-wrap .specs-table tr:hover td{background:var(--offwhite);}\n .ro-wrap .conditions-table{width:100%;border-collapse:collapse;font-size:18px !important;margin-top:4px;}\n .ro-wrap .conditions-table th{background:var(--deep);color:var(--white);font-size:15px !important;font-weight:600;letter-spacing:.06em;text-transform:uppercase;padding:10px 12px;text-align:left;}\n .ro-wrap .conditions-table th:first-child{border-radius:var(--radius) 0 0 0;}\n .ro-wrap .conditions-table th:last-child{border-radius:0 var(--radius) 0 0;}\n .ro-wrap .conditions-table td{padding:10px 12px;border-bottom:1px solid var(--slate);color:var(--text);}\n .ro-wrap .conditions-table tr:nth-child(even) td{background:var(--offwhite);}\n .ro-wrap .ro-feature-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(min(220px,100%),1fr));gap:16px;margin-top:4px;}\n .ro-wrap .ro-feature-card{background:var(--offwhite);border:1px solid var(--slate);border-radius:var(--radius);padding:20px 18px;}\n .ro-wrap .ro-feat-icon{width:40px;height:40px;background:linear-gradient(135deg,var(--ocean),var(--sky));border-radius:10px;display:flex;align-items:center;justify-content:center;margin-bottom:12px;}\n .ro-wrap .ro-feature-card h3{font-size:20px !important;font-weight:600;color:var(--deep);margin-bottom:6px;}\n .ro-wrap .ro-feature-card p{font-size:18px !important;color:var(--muted);line-height:1.55;margin:0;}\n .ro-wrap .pro-tip{display:block;background:#fffbeb;border:1px solid #f5d87a;border-radius:var(--radius);padding:18px 20px;margin-top:20px;box-sizing:border-box;width:100% !important;}\n .ro-wrap .pro-tip-icon{font-size:22px !important;display:inline;margin-right:8px;line-height:1.6 !important;}\n .ro-wrap .pro-tip p{font-size:18px !important;color:#5a4500;line-height:1.6 !important;margin:0;display:block;width:100%;}\n .ro-wrap .pro-tip strong{color:#3d2e00;}\n .ro-wrap .install-steps{counter-reset:step;list-style:none;padding:0;margin:4px 0 0;display:flex;flex-direction:column;gap:14px;}\n .ro-wrap .install-steps li{counter-increment:step;display:flex;align-items:flex-start;gap:14px;font-size:18px !important;color:var(--text);}\n .ro-wrap .install-steps li::before{content:counter(step);display:flex;align-items:center;justify-content:center;width:28px;height:28px;border-radius:50%;background:var(--ocean);color:white;font-size:15px !important;font-weight:700;flex-shrink:0;margin-top:1px;}\n .ro-wrap .filter-schedule{display:grid;grid-template-columns:repeat(auto-fill,minmax(min(180px,100%),1fr));gap:12px;margin-top:4px;}\n .ro-wrap .schedule-card{background:var(--offwhite);border:1px solid var(--slate);border-radius:var(--radius);padding:16px;}\n .ro-wrap .schedule-card .interval{font-size:22px !important;font-family:'DM Serif Display',serif;color:var(--sky);font-weight:400;margin-bottom:4px;}\n .ro-wrap .schedule-card h4{font-size:18px !important;font-weight:600;color:var(--deep);margin-bottom:4px;}\n .ro-wrap .schedule-card p{font-size:15px !important;color:var(--muted);margin:0;line-height:1.45;}\n .ro-wrap .benefits-strip{display:flex;flex-wrap:wrap;background:var(--deep);color:var(--white);border-radius:0 0 var(--radius) var(--radius);overflow:hidden;}\n .ro-wrap .benefit-item{flex:1 1 200px;padding:24px 22px;border-right:1px solid rgba(255,255,255,.1);}\n .ro-wrap .benefit-item:last-child{border-right:none;}\n .ro-wrap .bi-icon{font-size:22px !important;margin-bottom:10px;}\n .ro-wrap .benefit-item h4{font-size:15px !important;font-weight:600;color:var(--aqua);margin-bottom:5px;text-transform:uppercase;letter-spacing:.05em;}\n .ro-wrap .benefit-item p{font-size:15px !important;color:rgba(255,255,255,.65);line-height:1.55;margin:0;}\n .ro-wrap .faucet-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(min(200px,100%),1fr));gap:16px;margin-top:4px;}\n .ro-wrap .faucet-card{border:2px solid var(--slate);border-radius:var(--radius);padding:18px;text-align:center;}\n .ro-wrap .faucet-icon{font-size:28px !important;margin-bottom:10px;}\n .ro-wrap .faucet-card h4{font-size:18px !important;font-weight:600;color:var(--deep);margin-bottom:6px;}\n .ro-wrap .faucet-card p{font-size:15px !important;color:var(--muted);line-height:1.5;margin:0;}\n .ro-wrap .spec-cards{display:grid;grid-template-columns:repeat(auto-fill,minmax(min(180px,100%),1fr));gap:12px;margin-top:4px;}\n .ro-wrap .spec-card{background:var(--offwhite);border:1px solid var(--slate);border-radius:var(--radius);padding:16px;}\n .ro-wrap .spec-card .sc-label{font-size:13px !important;font-weight:700;letter-spacing:.08em;color:var(--sky);text-transform:uppercase;margin-bottom:4px;}\n .ro-wrap .spec-card .sc-value{font-size:20px !important;font-weight:600;color:var(--deep);margin-bottom:4px;}\n .ro-wrap .spec-card .sc-note{font-size:15px !important;color:var(--muted);}\n @media(max-width:640px){\n .ro-wrap .ro-hero{padding:36px 24px 32px;}\n .ro-wrap .ro-section{padding:28px 20px;}\n .ro-wrap .ro-feature-grid,.ro-wrap .faucet-grid,.ro-wrap .filter-schedule,.ro-wrap .spec-cards{grid-template-columns:1fr;}\n .ro-wrap .benefits-strip{flex-direction:column;}\n .ro-wrap .benefit-item{border-right:none;border-bottom:1px solid rgba(255,255,255,.1);}\n }\n \/* ── Nuclear override — force all text inside ro-wrap to be readable ── *\/\n .ro-wrap p,\n .ro-wrap li,\n .ro-wrap td,\n .ro-wrap th,\n .ro-wrap .ro-section \u003e p {\n font-size: 18px !important;\n line-height: 1.6 !important;\n }\n .ro-wrap .ro-section \u003e p,\n .ro-wrap .ro-callout p,\n .ro-wrap .stage-body p,\n .ro-wrap .ro-feature-card p,\n .ro-wrap .schedule-card p,\n .ro-wrap .faucet-card p,\n .ro-wrap .spec-card .sc-note,\n .ro-wrap .pro-tip p {\n font-size: 18px !important;\n line-height: 1.6 !important;\n }\n .ro-wrap h2 { font-size: clamp(26px,4vw,40px) !important; line-height:1.15 !important; }\n .ro-wrap h3 { font-size: 20px !important; line-height:1.3 !important; }\n .ro-wrap h4 { font-size: 18px !important; line-height:1.3 !important; }\n .ro-wrap .ro-label,\n .ro-wrap .stage-tag,\n .ro-wrap .sc-label { font-size: 14px !important; }\n .ro-wrap .ro-title { font-size: 24px !important; }\n .ro-wrap .interval { font-size: 22px !important; }\n .ro-wrap .stage-num { font-size: 16px !important; }\n .ro-wrap .ro-eyebrow { font-size: 14px !important; }\n .ro-wrap .ro-badge { font-size: 15px !important; }\n\u003c\/style\u003e\n\u003cdiv class=\"ro-wrap\"\u003e\n\n\u003cdiv class=\"ro-hero\"\u003e\n\u003cdiv class=\"ro-eyebrow\"\u003eWatts Premier Residential Reverse Osmosis\u003c\/div\u003e\n\u003ch2\u003e\n\u003cem\u003eVOC 4 Stage System RO Pure Plus\u003c\/em\u003e with Top-Mount Twist Faucet\u003c\/h2\u003e\n\u003cp class=\"ro-tagline\"\u003eSpace-saving 4-stage reverse osmosis system with push-button filter changes and VOC reduction\u003c\/p\u003e\n\u003cdiv class=\"ro-badges\"\u003e\n\u003cspan class=\"ro-badge\"\u003e✓ NSF\/ANSI 58 Certified\u003c\/span\u003e\n\u003cspan class=\"ro-badge\"\u003e✓ 50 GPD Membrane\u003c\/span\u003e\n\u003cspan class=\"ro-badge\"\u003e✓ Tool-Free Filter Changes\u003c\/span\u003e\n\u003cspan class=\"ro-badge\"\u003e✓ Lead-Free Certified\u003c\/span\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"ro-callout\"\u003e\n\u003cp\u003eThe Watts Premier 531417 RO Pure Plus delivers comprehensive 4-stage filtration in a compact under-sink design. Push-button cartridge changes eliminate the mess of traditional RO systems, with automatic shut-off valves and backflow prevention built into each filter head. Includes \u003cstrong\u003e3-gallon storage tank\u003c\/strong\u003e, brushed nickel air-gap faucet, and filters rated for sediment, chlorine, TDS, and \u003cstrong\u003evolatile organic compounds\u003c\/strong\u003e.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"ro-section\"\u003e\n\u003cdiv class=\"ro-label\"\u003eFILTRATION STAGES\u003c\/div\u003e\n\u003ch3 class=\"ro-title\"\u003eFour-Stage Contaminant Reduction\u003c\/h3\u003e\n\u003cdiv class=\"stage-pipeline\"\u003e\n\u003cdiv class=\"stage-item\"\u003e\n\u003cspan class=\"stage-tag\"\u003eSEDIMENT\u003c\/span\u003e\n\u003cspan class=\"stage-detail\"\u003e5 Micron Pre-Filter (105311)\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"stage-item\"\u003e\n\u003cspan class=\"stage-tag\"\u003eCARBON\u003c\/span\u003e\n\u003cspan class=\"stage-detail\"\u003e5 Micron Block (105351)\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"stage-item\"\u003e\n\u003cspan class=\"stage-tag\"\u003eMEMBRANE\u003c\/span\u003e\n\u003cspan class=\"stage-detail\"\u003e50 GPD RO (105331)\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"stage-item\"\u003e\n\u003cspan class=\"stage-tag\"\u003eVOC\u003c\/span\u003e\n\u003cspan class=\"stage-detail\"\u003e1 Micron Polish (105381)\u003c\/span\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"ro-section\"\u003e\n\u003cdiv class=\"ro-label\"\u003eKEY FEATURES\u003c\/div\u003e\n\u003ch3 class=\"ro-title\"\u003eEngineered for Ease and Performance\u003c\/h3\u003e\n\u003cdiv class=\"ro-feature-grid\"\u003e\n\u003cdiv class=\"ro-feature-card\"\u003e\n\u003cdiv class=\"ro-feat-icon\"\u003e\u003cspan\u003e🔄\u003c\/span\u003e\u003c\/div\u003e\n\u003ch3\u003ePush-Button Filter Changes\u003c\/h3\u003e\n\u003cp\u003eQuick-change cartridges with automatic shut-off valves and double O-rings. No tools, no water shut-off, no mess during replacement.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"ro-feature-card\"\u003e\n\u003cdiv class=\"ro-feat-icon\"\u003e\u003cspan\u003e💧\u003c\/span\u003e\u003c\/div\u003e\n\u003ch3\u003eVOC Post-Filter Stage\u003c\/h3\u003e\n\u003cp\u003eFinal 1-micron carbon stage removes volatile organic compounds after storage tank, delivering polished water at the faucet.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"ro-feature-card\"\u003e\n\u003cdiv class=\"ro-feat-icon\"\u003e\u003cspan\u003e📏\u003c\/span\u003e\u003c\/div\u003e\n\u003ch3\u003eCompact Under-Sink Design\u003c\/h3\u003e\n\u003cp\u003eSpace-saving integrated manifold reduces tube connections and fits tight installations. All components mount as a single unit.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"ro-feature-card\"\u003e\n\u003cdiv class=\"ro-feat-icon\"\u003e\u003cspan\u003e🚰\u003c\/span\u003e\u003c\/div\u003e\n\u003ch3\u003eMonitored Air-Gap Faucet\u003c\/h3\u003e\n\u003cp\u003eBrushed nickel top-mount twist faucet with air-gap separation for code compliance and integrated filter change monitoring.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"ro-feature-card\"\u003e\n\u003cdiv class=\"ro-feat-icon\"\u003e\u003cspan\u003e🛡️\u003c\/span\u003e\u003c\/div\u003e\n\u003ch3\u003eNSF Certified Performance\u003c\/h3\u003e\n\u003cp\u003eWQA certified to NSF\/ANSI 58 for contaminant reduction and NSF\/ANSI 372 for lead-free materials. Removes 99.95% of cysts.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"ro-feature-card\"\u003e\n\u003cdiv class=\"ro-feat-icon\"\u003e\u003cspan\u003e🔒\u003c\/span\u003e\u003c\/div\u003e\n\u003ch3\u003eIntegrated Backflow Prevention\u003c\/h3\u003e\n\u003cp\u003eCheck valves between cartridges prevent cross-contamination. Shut-off valves in each head stop water flow when filters are removed.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"ro-section\"\u003e\n\u003cdiv class=\"ro-label\"\u003eSPECIFICATIONS \u0026amp; APPLICATIONS\u003c\/div\u003e\n\u003ch3 class=\"ro-title\"\u003eSystem Requirements and Compatibility\u003c\/h3\u003e\n\u003cp\u003eDesigned for residential point-of-use installation with municipal or well water sources. Requires inlet water pressure between 40-80 psi for optimal performance, maximum 100 psi. System includes 3-gallon pressurized storage tank, suitable for households with moderate daily water consumption. Replacement cartridges: 105311 sediment pre-filter, 105351 carbon block pre-filter, 105331 TFC membrane (50 gallons per day), and 105381 VOC post-carbon filter. Compatible with standard under-sink installations requiring lead reduction, TDS removal, chlorine taste and odor reduction, and volatile organic compound filtration. Air-gap faucet design meets plumbing codes requiring drain separation.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"ro-callout\"\u003e\n\u003cp\u003eWatts Premier 531417 VOC 4 Stage System backed by manufacturer warranty and certified to industry standards for contaminant reduction performance.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003c\/div\u003e","brand":"Isopure Water","offers":[{"title":"Default Title","offer_id":40675192504491,"sku":"531417","price":602.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0446\/7677\/6098\/files\/product-6958248100011-padded.jpg?v=1777271360"},{"product_id":"compatible-to-watts-premier-560088-lead-cyst-voc-carbon-block-two-stage-replacement-1-pack-filter-pack","title":"Compatible to Watts Premier 560088 Lead, Cyst, VOC Carbon Block Two Stage Replacement, 1 pack, Filter Pack","description":"\n\u003clink 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80%,rgba(255,255,255,.05) 0%,transparent 60%);pointer-events:none;}\n .ro-wrap .ro-eyebrow{font-size:13px !important;font-weight:600;letter-spacing:.18em;text-transform:uppercase;color:var(--aqua);margin-bottom:12px;}\n .ro-wrap .ro-hero h2{font-family:'DM Serif Display',serif;font-size:clamp(26px,4vw,40px) !important;line-height:1.15;font-weight:400;margin-bottom:16px;color:var(--white);}\n .ro-wrap .ro-hero h2 em{font-style:italic;color:var(--aqua);}\n .ro-wrap .ro-tagline{font-size:18px !important;color:rgba(255,255,255,.75);font-weight:300;margin-bottom:28px;}\n .ro-wrap .ro-badges{display:flex;flex-wrap:wrap;gap:10px;}\n .ro-wrap .ro-badge{display:inline-flex;align-items:center;gap:6px;background:rgba(255,255,255,.12);border:1px solid rgba(255,255,255,.2);color:var(--white);font-size:15px !important;font-weight:500;padding:6px 14px;border-radius:40px;backdrop-filter:blur(6px);}\n .ro-wrap .ro-callout{background:var(--offwhite);border-left:4px solid var(--sky);padding:20px 24px;}\n .ro-wrap .ro-callout p{font-size:18px !important;color:var(--text);line-height:1.7;margin:0;}\n .ro-wrap .ro-callout strong{color:var(--ocean);}\n .ro-wrap .ro-section{padding:36px 40px;border-bottom:1px solid var(--slate);}\n .ro-wrap .ro-label{font-size:13px !important;font-weight:700;letter-spacing:.2em;text-transform:uppercase;color:var(--sky);margin-bottom:8px;}\n .ro-wrap .ro-title{font-family:'DM Serif Display',serif;font-size:24px !important;color:var(--deep);margin-bottom:20px;font-weight:400;}\n .ro-wrap .stage-pipeline{display:flex;flex-direction:column;gap:0;margin-top:4px;}\n .ro-wrap .stage-row{display:flex;flex-direction:row;gap:12px;position:relative;min-width:0;align-items:flex-start;width:100%;box-sizing:border-box;}\n .ro-wrap .stage-row:not(:last-child) .stage-line{position:absolute;left:17px;top:40px;bottom:0;width:2px;background:var(--slate);}\n .ro-wrap 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!important;box-sizing:border-box;}\n .ro-wrap .stage-body p{font-size:18px !important;color:var(--muted);line-height:1.6;margin:0;display:block;}\n .ro-wrap .stage-body .stage-part{font-size:15px !important;color:var(--sky);margin-top:6px;font-weight:500;}\n .ro-wrap .specs-table{width:100%;border-collapse:collapse;font-size:18px !important;}\n .ro-wrap .specs-table tr{border-bottom:1px solid var(--slate);}\n .ro-wrap .specs-table tr:last-child{border-bottom:none;}\n .ro-wrap .specs-table td{padding:11px 6px;vertical-align:top;}\n .ro-wrap .specs-table td:first-child{font-weight:500;color:var(--deep);width:44%;padding-right:16px;}\n .ro-wrap .specs-table td:last-child{color:var(--muted);}\n .ro-wrap .specs-table tr:hover td{background:var(--offwhite);}\n .ro-wrap .conditions-table{width:100%;border-collapse:collapse;font-size:18px !important;margin-top:4px;}\n .ro-wrap .conditions-table th{background:var(--deep);color:var(--white);font-size:15px 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var(--radius);overflow:hidden;}\n .ro-wrap .benefit-item{flex:1 1 200px;padding:24px 22px;border-right:1px solid rgba(255,255,255,.1);}\n .ro-wrap .benefit-item:last-child{border-right:none;}\n .ro-wrap .bi-icon{font-size:22px !important;margin-bottom:10px;}\n .ro-wrap .benefit-item h4{font-size:15px !important;font-weight:600;color:var(--aqua);margin-bottom:5px;text-transform:uppercase;letter-spacing:.05em;}\n .ro-wrap .benefit-item p{font-size:15px !important;color:rgba(255,255,255,.65);line-height:1.55;margin:0;}\n .ro-wrap .faucet-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(min(200px,100%),1fr));gap:16px;margin-top:4px;}\n .ro-wrap .faucet-card{border:2px solid var(--slate);border-radius:var(--radius);padding:18px;text-align:center;}\n .ro-wrap .faucet-icon{font-size:28px !important;margin-bottom:10px;}\n .ro-wrap .faucet-card h4{font-size:18px !important;font-weight:600;color:var(--deep);margin-bottom:6px;}\n .ro-wrap .faucet-card p{font-size:15px 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.benefit-item{border-right:none;border-bottom:1px solid rgba(255,255,255,.1);}\n }\n \/* ── Nuclear override — force all text inside ro-wrap to be readable ── *\/\n .ro-wrap p,\n .ro-wrap li,\n .ro-wrap td,\n .ro-wrap th,\n .ro-wrap .ro-section \u003e p {\n font-size: 18px !important;\n line-height: 1.6 !important;\n }\n .ro-wrap .ro-section \u003e p,\n .ro-wrap .ro-callout p,\n .ro-wrap .stage-body p,\n .ro-wrap .ro-feature-card p,\n .ro-wrap .schedule-card p,\n .ro-wrap .faucet-card p,\n .ro-wrap .spec-card .sc-note,\n .ro-wrap .pro-tip p {\n font-size: 18px !important;\n line-height: 1.6 !important;\n }\n .ro-wrap h2 { font-size: clamp(26px,4vw,40px) !important; line-height:1.15 !important; }\n .ro-wrap h3 { font-size: 20px !important; line-height:1.3 !important; }\n .ro-wrap h4 { font-size: 18px !important; line-height:1.3 !important; }\n .ro-wrap .ro-label,\n .ro-wrap .stage-tag,\n .ro-wrap .sc-label { font-size: 14px !important; }\n .ro-wrap .ro-title { font-size: 24px !important; }\n .ro-wrap .interval { font-size: 22px !important; }\n .ro-wrap .stage-num { font-size: 16px !important; }\n .ro-wrap .ro-eyebrow { font-size: 14px !important; }\n .ro-wrap .ro-badge { font-size: 15px !important; }\n\u003c\/style\u003e\n\u003cdiv class=\"ro-wrap\"\u003e\n\n\u003cdiv class=\"ro-callout\"\u003e\nThis two-stage replacement filter pack delivers lead, cyst, and VOC reduction for standard under-sink and countertop systems, compatible with Watts Premier 560088 and WP500032 RO units. You get a 5-micron sediment filter and a 1-micron NSF-certified carbon block filter in one pack, offering the same quality as the OEM at a better value.\n\u003c\/div\u003e\n\n\u003cdiv class=\"ro-section\"\u003e\n\u003cdiv class=\"ro-label\"\u003eSPECIFICATIONS\u003c\/div\u003e\n\u003ch2 class=\"ro-title\"\u003eTwo-Stage Filtration Pack\u003c\/h2\u003e\n\u003cdiv class=\"spec-cards\"\u003e\n\u003cdiv class=\"spec-card\"\u003e\n\u003cdiv class=\"sc-label\"\u003eStages Included\u003c\/div\u003e\n\u003cdiv class=\"sc-value\"\u003e2 Filters\u003c\/div\u003e\n\u003cdiv class=\"sc-note\"\u003eSediment + Carbon Block\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"spec-card\"\u003e\n\u003cdiv class=\"sc-label\"\u003eSediment Filter\u003c\/div\u003e\n\u003cdiv class=\"sc-value\"\u003e5 Micron\u003c\/div\u003e\n\u003cdiv class=\"sc-note\"\u003eDirt, rust, particles\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"spec-card\"\u003e\n\u003cdiv class=\"sc-label\"\u003eCarbon Block Filter\u003c\/div\u003e\n\u003cdiv class=\"sc-value\"\u003e1 Micron\u003c\/div\u003e\n\u003cdiv class=\"sc-note\"\u003eNSF certified for lead\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"spec-card\"\u003e\n\u003cdiv class=\"sc-label\"\u003eContaminant Reduction\u003c\/div\u003e\n\u003cdiv class=\"sc-value\"\u003eLead, Cyst, VOC\u003c\/div\u003e\n\u003cdiv class=\"sc-note\"\u003ePlus chlorine taste \u0026amp; odor\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"spec-card\"\u003e\n\u003cdiv class=\"sc-label\"\u003eCompatibility\u003c\/div\u003e\n\u003cdiv class=\"sc-value\"\u003eWatts Premier\u003c\/div\u003e\n\u003cdiv class=\"sc-note\"\u003e560088, WP500032\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"spec-card\"\u003e\n\u003cdiv class=\"sc-label\"\u003eApplication\u003c\/div\u003e\n\u003cdiv class=\"sc-value\"\u003eUnder Sink\u003c\/div\u003e\n\u003cdiv class=\"sc-note\"\u003eAlso countertop systems\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"ro-section\"\u003e\n\u003cdiv class=\"ro-label\"\u003eTECHNICAL DETAILS\u003c\/div\u003e\n\u003ch2 class=\"ro-title\"\u003eFilter Pack Contents \u0026amp; Performance\u003c\/h2\u003e\n\u003ctable class=\"specs-table\"\u003e\n\u003ctr\u003e\n\u003ctd\u003eManufacturer\u003c\/td\u003e\n\u003ctd\u003eIPW Industries Inc (authorized Watts dealer)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCompatible OEM Part\u003c\/td\u003e\n\u003ctd\u003eWatts Premier 560088, Flow Max, C-Max (Watts brands)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eStage 1 Filter Type\u003c\/td\u003e\n\u003ctd\u003e5-micron sediment filter (dirt, rust, particulate)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eStage 2 Filter Type\u003c\/td\u003e\n\u003ctd\u003e1-micron carbon block filter (lead, cyst, VOC, chlorine)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCertification\u003c\/td\u003e\n\u003ctd\u003eNSF certified carbon block for lead and chlorine removal\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSystem Type\u003c\/td\u003e\n\u003ctd\u003eStandard under-sink and countertop water filtration systems\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWater Type\u003c\/td\u003e\n\u003ctd\u003eHard and soft drinking water\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"ro-section\"\u003e\n\u003cdiv class=\"ro-label\"\u003eCOMPATIBILITY \u0026amp; APPLICATIONS\u003c\/div\u003e\n\u003ch2 class=\"ro-title\"\u003eWorks With Watts Premier Systems\u003c\/h2\u003e\n\u003cp\u003eThis replacement filter pack is designed for Watts Premier 5SV 5-Stage Reverse Osmosis System (WP500032) and all standard under-sink and countertop filtration systems that use the 560088 filter set. IPW Industries uses equivalent Flow Max and C-Max brand filters made by Watts specifically for water dealers, identical to the Premier 560088 sold through retail channels. The two-stage design handles sediment in the first stage and lead, cyst, VOC, chlorine taste, and odor in the second stage, suitable for both hard and soft water supplies.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"pro-tip\"\u003e\n💧 IPW Industries is an authorized Watts Water Quality dealer. The Flow Max and C-Max filters in this pack are manufactured by Watts for the dealer channel and meet the same specifications as the Premier 560088 retail version, giving you OEM quality at a better price point.\n\u003c\/div\u003e\n\n\u003c\/div\u003e","brand":"Isopure Water","offers":[{"title":"Default Title","offer_id":41434284851371,"sku":"FPMB5 \/ MAXPB","price":35.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0446\/7677\/6098\/files\/product-7211078516907-padded.jpg?v=1777261725"},{"product_id":"watts-ofpcom-cartridge-combo-pack-1-radial-flow-cartridge-and-1-tac-cartridge-for-oneflow-plus-system","title":"Watts - OFPCOM - Cartridge Combo Pack, 1 Radial Flow Cartridge and 1 TAC Cartridge for OneFlow Plus System","description":"\n\u003clink href=\"https:\/\/fonts.googleapis.com\/css2?family=DM+Serif+Display:ital@0;1\u0026amp;family=DM+Sans:wght@300;400;500;600\u0026amp;display=swap\" rel=\"stylesheet\"\u003e\n\u003cstyle\u003e\n 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!important;color:var(--muted);line-height:1.5;margin:0;}\n .ro-wrap .spec-cards{display:grid;grid-template-columns:repeat(auto-fill,minmax(min(180px,100%),1fr));gap:12px;margin-top:4px;}\n .ro-wrap .spec-card{background:var(--offwhite);border:1px solid var(--slate);border-radius:var(--radius);padding:16px;}\n .ro-wrap .spec-card .sc-label{font-size:13px !important;font-weight:700;letter-spacing:.08em;color:var(--sky);text-transform:uppercase;margin-bottom:4px;}\n .ro-wrap .spec-card .sc-value{font-size:20px !important;font-weight:600;color:var(--deep);margin-bottom:4px;}\n .ro-wrap .spec-card .sc-note{font-size:15px !important;color:var(--muted);}\n @media(max-width:640px){\n .ro-wrap .ro-hero{padding:36px 24px 32px;}\n .ro-wrap .ro-section{padding:28px 20px;}\n .ro-wrap .ro-feature-grid,.ro-wrap .faucet-grid,.ro-wrap .filter-schedule,.ro-wrap .spec-cards{grid-template-columns:1fr;}\n .ro-wrap .benefits-strip{flex-direction:column;}\n .ro-wrap .benefit-item{border-right:none;border-bottom:1px solid rgba(255,255,255,.1);}\n }\n \/* ── Nuclear override — force all text inside ro-wrap to be readable ── *\/\n .ro-wrap p,\n .ro-wrap li,\n .ro-wrap td,\n .ro-wrap th,\n .ro-wrap .ro-section \u003e p {\n font-size: 18px !important;\n line-height: 1.6 !important;\n }\n .ro-wrap .ro-section \u003e p,\n .ro-wrap .ro-callout p,\n .ro-wrap .stage-body p,\n .ro-wrap .ro-feature-card p,\n .ro-wrap .schedule-card p,\n .ro-wrap .faucet-card p,\n .ro-wrap .spec-card .sc-note,\n .ro-wrap .pro-tip p {\n font-size: 18px !important;\n line-height: 1.6 !important;\n }\n .ro-wrap h2 { font-size: clamp(26px,4vw,40px) !important; line-height:1.15 !important; }\n .ro-wrap h3 { font-size: 20px !important; line-height:1.3 !important; }\n .ro-wrap h4 { font-size: 18px !important; line-height:1.3 !important; }\n .ro-wrap .ro-label,\n .ro-wrap .stage-tag,\n .ro-wrap .sc-label { font-size: 14px !important; }\n .ro-wrap .ro-title { font-size: 24px !important; }\n .ro-wrap .interval { font-size: 22px !important; }\n .ro-wrap .stage-num { font-size: 16px !important; }\n .ro-wrap .ro-eyebrow { font-size: 14px !important; }\n .ro-wrap .ro-badge { font-size: 15px !important; }\n\u003c\/style\u003e\n\u003cdiv class=\"ro-wrap\"\u003e\n\n\u003cdiv class=\"ro-callout\"\u003e\nThis Watts OFPCOM Cartridge Combo Pack includes one radial flow sediment cartridge and one TAC (Template Assisted Crystallization) cartridge, delivering complete replacement filtration and salt-free scale prevention for the Watts OneFlow Plus System. Engineered as a matched pair, these cartridges restore peak performance and extend the service life of your whole-home water conditioning system.\n\u003c\/div\u003e\n\n\u003cdiv class=\"ro-section\"\u003e\n\u003cdiv class=\"ro-label\"\u003eSPECIFICATIONS\u003c\/div\u003e\n\u003ch2 class=\"ro-title\"\u003eCartridge Combo Pack Details\u003c\/h2\u003e\n\u003cdiv class=\"spec-cards\"\u003e\n\u003cdiv class=\"spec-card\"\u003e\n\u003cdiv class=\"sc-label\"\u003eBrand\u003c\/div\u003e\n\u003cdiv class=\"sc-value\"\u003eWatts\u003c\/div\u003e\n\u003cdiv class=\"sc-note\"\u003eOEM replacement cartridges\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"spec-card\"\u003e\n\u003cdiv class=\"sc-label\"\u003eModel Number\u003c\/div\u003e\n\u003cdiv class=\"sc-value\"\u003eOFPCOM\u003c\/div\u003e\n\u003cdiv class=\"sc-note\"\u003eFactory combo pack\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"spec-card\"\u003e\n\u003cdiv class=\"sc-label\"\u003ePack Contents\u003c\/div\u003e\n\u003cdiv class=\"sc-value\"\u003e2 Cartridges\u003c\/div\u003e\n\u003cdiv class=\"sc-note\"\u003e1 radial flow + 1 TAC\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"spec-card\"\u003e\n\u003cdiv class=\"sc-label\"\u003eSystem Compatibility\u003c\/div\u003e\n\u003cdiv class=\"sc-value\"\u003eOFPSYS\u003c\/div\u003e\n\u003cdiv class=\"sc-note\"\u003eOneFlow Plus System\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"spec-card\"\u003e\n\u003cdiv class=\"sc-label\"\u003eFiltration Stage\u003c\/div\u003e\n\u003cdiv class=\"sc-value\"\u003eSediment\u003c\/div\u003e\n\u003cdiv class=\"sc-note\"\u003eRadial flow cartridge\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"spec-card\"\u003e\n\u003cdiv class=\"sc-label\"\u003eConditioning Stage\u003c\/div\u003e\n\u003cdiv class=\"sc-value\"\u003eTAC Media\u003c\/div\u003e\n\u003cdiv class=\"sc-note\"\u003eSalt-free scale prevention\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"ro-section\"\u003e\n\u003cdiv class=\"ro-label\"\u003eTECHNICAL DETAILS\u003c\/div\u003e\n\u003ch2 class=\"ro-title\"\u003eComponent Specifications\u003c\/h2\u003e\n\u003ctable class=\"specs-table\"\u003e\n\u003ctr\u003e\n\u003ctd\u003eManufacturer\u003c\/td\u003e\n\u003ctd\u003eWatts Water Technologies\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePart Number\u003c\/td\u003e\n\u003ctd\u003eOFPCOM\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRadial Flow Cartridge Function\u003c\/td\u003e\n\u003ctd\u003eSediment pre-filtration with radial flow design for extended surface area\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTAC Cartridge Function\u003c\/td\u003e\n\u003ctd\u003eTemplate Assisted Crystallization for scale prevention without salt or chemicals\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eReplacement Interval\u003c\/td\u003e\n\u003ctd\u003eFollow manufacturer guidelines based on water quality and system usage\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInstallation\u003c\/td\u003e\n\u003ctd\u003eDirect replacement for existing cartridges in Watts OneFlow Plus housing\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePackaging\u003c\/td\u003e\n\u003ctd\u003eFactory-sealed combo pack with both cartridges included\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"ro-section\"\u003e\n\u003cdiv class=\"ro-label\"\u003eCOMPATIBILITY \u0026amp; APPLICATIONS\u003c\/div\u003e\n\u003ch2 class=\"ro-title\"\u003eSystem Integration\u003c\/h2\u003e\n\u003cp\u003eThe Watts OFPCOM combo pack is designed exclusively for the Watts OneFlow Plus System (OFPSYS), providing complete cartridge replacement in a single package. The radial flow cartridge captures sediment, rust, and particulates before water reaches the TAC media, while the TAC cartridge transforms dissolved hardness minerals into harmless microscopic crystals that remain suspended in water and won't form scale on fixtures, appliances, or plumbing. This salt-free approach to scale prevention requires no backwashing, no electricity, and no wastewater discharge, making it ideal for whole-home water conditioning in municipal or well water applications where traditional water softeners are restricted or impractical.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"pro-tip\"\u003e\n💧 \u003cstrong\u003ePro Tip:\u003c\/strong\u003e Replace both cartridges at the same time using this combo pack to maintain balanced filtration and conditioning performance. If sediment levels are high in your area, inspect the radial flow cartridge at six-month intervals even if the recommended service life hasn't been reached—a clogged pre-filter will reduce flow and strain the TAC media downstream.\n\u003c\/div\u003e\n\n\u003c\/div\u003e","brand":"Isopure Water","offers":[{"title":"Default Title","offer_id":42548503642283,"sku":"OFPCOM","price":729.19,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0446\/7677\/6098\/files\/watts-ofpcom-cartridge-combo-pack-1-radial-flow-cartridge-and-1-tac-cartridge-for-oneflow-plus-system-815189.jpg?v=1762465630"},{"product_id":"watts-oneflow-plus-system-ofpsys","title":"Watts OneFlow Plus System (OFPSYS) - Salt-Free Scale Prevention and Water Filtration System","description":"\n\u003clink href=\"https:\/\/fonts.googleapis.com\/css2?family=DM+Serif+Display:ital@0;1\u0026amp;family=DM+Sans:wght@300;400;500;600\u0026amp;display=swap\" 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li::before{content:counter(step);display:flex;align-items:center;justify-content:center;width:28px;height:28px;border-radius:50%;background:var(--ocean);color:white;font-size:15px !important;font-weight:700;flex-shrink:0;margin-top:1px;}\n .ro-wrap .filter-schedule{display:grid;grid-template-columns:repeat(auto-fill,minmax(min(180px,100%),1fr));gap:12px;margin-top:4px;}\n .ro-wrap .schedule-card{background:var(--offwhite);border:1px solid var(--slate);border-radius:var(--radius);padding:16px;}\n .ro-wrap .schedule-card .interval{font-size:22px !important;font-family:'DM Serif Display',serif;color:var(--sky);font-weight:400;margin-bottom:4px;}\n .ro-wrap .schedule-card h4{font-size:18px !important;font-weight:600;color:var(--deep);margin-bottom:4px;}\n .ro-wrap .schedule-card p{font-size:15px !important;color:var(--muted);margin:0;line-height:1.45;}\n .ro-wrap .benefits-strip{display:flex;flex-wrap:wrap;background:var(--deep);color:var(--white);border-radius:0 0 var(--radius) var(--radius);overflow:hidden;}\n .ro-wrap .benefit-item{flex:1 1 200px;padding:24px 22px;border-right:1px solid rgba(255,255,255,.1);}\n .ro-wrap .benefit-item:last-child{border-right:none;}\n .ro-wrap .bi-icon{font-size:22px !important;margin-bottom:10px;}\n .ro-wrap .benefit-item h4{font-size:15px !important;font-weight:600;color:var(--aqua);margin-bottom:5px;text-transform:uppercase;letter-spacing:.05em;}\n .ro-wrap .benefit-item p{font-size:15px !important;color:rgba(255,255,255,.65);line-height:1.55;margin:0;}\n .ro-wrap .faucet-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(min(200px,100%),1fr));gap:16px;margin-top:4px;}\n .ro-wrap .faucet-card{border:2px solid var(--slate);border-radius:var(--radius);padding:18px;text-align:center;}\n .ro-wrap .faucet-icon{font-size:28px !important;margin-bottom:10px;}\n .ro-wrap .faucet-card h4{font-size:18px !important;font-weight:600;color:var(--deep);margin-bottom:6px;}\n .ro-wrap .faucet-card p{font-size:15px !important;color:var(--muted);line-height:1.5;margin:0;}\n .ro-wrap .spec-cards{display:grid;grid-template-columns:repeat(auto-fill,minmax(min(180px,100%),1fr));gap:12px;margin-top:4px;}\n .ro-wrap .spec-card{background:var(--offwhite);border:1px solid var(--slate);border-radius:var(--radius);padding:16px;}\n .ro-wrap .spec-card .sc-label{font-size:13px !important;font-weight:700;letter-spacing:.08em;color:var(--sky);text-transform:uppercase;margin-bottom:4px;}\n .ro-wrap .spec-card .sc-value{font-size:20px !important;font-weight:600;color:var(--deep);margin-bottom:4px;}\n .ro-wrap .spec-card .sc-note{font-size:15px !important;color:var(--muted);}\n @media(max-width:640px){\n .ro-wrap .ro-hero{padding:36px 24px 32px;}\n .ro-wrap .ro-section{padding:28px 20px;}\n .ro-wrap .ro-feature-grid,.ro-wrap .faucet-grid,.ro-wrap .filter-schedule,.ro-wrap .spec-cards{grid-template-columns:1fr;}\n .ro-wrap .benefits-strip{flex-direction:column;}\n .ro-wrap .benefit-item{border-right:none;border-bottom:1px solid rgba(255,255,255,.1);}\n }\n \/* ── Nuclear override — force all text inside ro-wrap to be readable ── *\/\n .ro-wrap p,\n .ro-wrap li,\n .ro-wrap td,\n .ro-wrap th,\n .ro-wrap .ro-section \u003e p {\n font-size: 18px !important;\n line-height: 1.6 !important;\n }\n .ro-wrap .ro-section \u003e p,\n .ro-wrap .ro-callout p,\n .ro-wrap .stage-body p,\n .ro-wrap .ro-feature-card p,\n .ro-wrap .schedule-card p,\n .ro-wrap .faucet-card p,\n .ro-wrap .spec-card .sc-note,\n .ro-wrap .pro-tip p {\n font-size: 18px !important;\n line-height: 1.6 !important;\n }\n .ro-wrap h2 { font-size: clamp(26px,4vw,40px) !important; line-height:1.15 !important; }\n .ro-wrap h3 { font-size: 20px !important; line-height:1.3 !important; }\n .ro-wrap h4 { font-size: 18px !important; line-height:1.3 !important; }\n .ro-wrap .ro-label,\n .ro-wrap .stage-tag,\n .ro-wrap .sc-label { font-size: 14px !important; }\n .ro-wrap .ro-title { font-size: 24px !important; }\n .ro-wrap .interval { font-size: 22px !important; }\n .ro-wrap .stage-num { font-size: 16px !important; }\n .ro-wrap .ro-eyebrow { font-size: 14px !important; }\n .ro-wrap .ro-badge { font-size: 15px !important; }\n\u003c\/style\u003e\n\u003cdiv class=\"ro-wrap\"\u003e\n\n\u003cdiv class=\"ro-hero\"\u003e\n\u003cdiv class=\"ro-eyebrow\"\u003eWatts Water · Whole Home Scale Prevention \u0026amp; Filtration\u003c\/div\u003e\n\u003ch2\u003eWatts \u003cem\u003eOneFlow Plus System (OFPSYS)\u003c\/em\u003e\n\u003c\/h2\u003e\n\u003cp class=\"ro-tagline\"\u003eSalt-free scale prevention with carbon filtration. Template-Assisted Crystallization technology protects plumbing while removing chlorine taste, odor, and sediment—no salt, no electricity, no wastewater.\u003c\/p\u003e\n\u003cdiv class=\"ro-badges\"\u003e\n\u003cspan class=\"ro-badge\"\u003e10 GPM Flow Rate\u003c\/span\u003e\n\u003cspan class=\"ro-badge\"\u003e20 Micron Carbon Block\u003c\/span\u003e\n\u003cspan class=\"ro-badge\"\u003e3-Year Cartridge Life\u003c\/span\u003e\n\u003cspan class=\"ro-badge\"\u003eSalt-Free TAC\u003c\/span\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"ro-section\"\u003e\n\u003cdiv class=\"ro-label\"\u003eWHY IT WORKS\u003c\/div\u003e\n\u003ch3 class=\"ro-title\"\u003eTwo technologies in one compact system\u003c\/h3\u003e\n\u003cdiv class=\"ro-feature-grid\"\u003e\n\u003cdiv class=\"ro-feature-card\"\u003e\n\u003cdiv class=\"ro-feat-icon\"\u003e\u003cspan\u003e🔬\u003c\/span\u003e\u003c\/div\u003e\n\u003ch3\u003eTemplate-Assisted Crystallization\u003c\/h3\u003e\n\u003cp\u003eTAC technology converts dissolved hardness minerals into microscopic crystals that stay suspended in water rather than forming scale on pipes and appliances. No salt exchange required.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"ro-feature-card\"\u003e\n\u003cdiv class=\"ro-feat-icon\"\u003e\u003cspan\u003e🧪\u003c\/span\u003e\u003c\/div\u003e\n\u003ch3\u003eCarbon Block Filtration\u003c\/h3\u003e\n\u003cp\u003e20-micron carbon block removes chlorine taste and odor while capturing sediment throughout your entire home. Cleaner water from every tap without the maintenance of traditional softeners.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"ro-feature-card\"\u003e\n\u003cdiv class=\"ro-feat-icon\"\u003e\u003cspan\u003e🌱\u003c\/span\u003e\u003c\/div\u003e\n\u003ch3\u003eZero Waste Operation\u003c\/h3\u003e\n\u003cp\u003eNo backwashing, no brine discharge, no electricity consumption. The Watts OneFlow Plus System (OFPSYS) operates passively, reducing environmental impact while saving on operating costs.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"ro-feature-card\"\u003e\n\u003cdiv class=\"ro-feat-icon\"\u003e\u003cspan\u003e🔧\u003c\/span\u003e\u003c\/div\u003e\n\u003ch3\u003eFlexible Installation\u003c\/h3\u003e\n\u003cp\u003eDesigned for floor-standing or wall-mounted configuration. Compact footprint integrates with residential plumbing while maintaining full 10 GPM flow rate for household demand.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"ro-section\"\u003e\n\u003cdiv class=\"ro-label\"\u003eSPECIFICATIONS\u003c\/div\u003e\n\u003ch3 class=\"ro-title\"\u003eWatts OneFlow Plus System (OFPSYS) · Model 7100638\u003c\/h3\u003e\n\u003ctable class=\"specs-table\"\u003e\n\u003ctr\u003e\n\u003ctd class=\"spec-label\"\u003eModel Number\u003c\/td\u003e\n\u003ctd class=\"spec-value\"\u003e7100638\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"spec-label\"\u003eMaximum Flow Rate\u003c\/td\u003e\n\u003ctd class=\"spec-value\"\u003e10 GPM\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"spec-label\"\u003eMaximum Temperature\u003c\/td\u003e\n\u003ctd class=\"spec-value\"\u003e100°F\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"spec-label\"\u003eSystem Type\u003c\/td\u003e\n\u003ctd class=\"spec-value\"\u003eResidential Combo – Scale Prevention \u0026amp; Filtration\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"spec-label\"\u003eInstallation\u003c\/td\u003e\n\u003ctd class=\"spec-value\"\u003eFloor-standing or wall-mounted\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"spec-label\"\u003eCartridge Lifespan\u003c\/td\u003e\n\u003ctd class=\"spec-value\"\u003eUp to 3 years\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"spec-label\"\u003eFiltration Micron\u003c\/td\u003e\n\u003ctd class=\"spec-value\"\u003e20 micron carbon block\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"spec-label\"\u003eScale Prevention\u003c\/td\u003e\n\u003ctd class=\"spec-value\"\u003eTemplate-Assisted Crystallization (TAC)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"ro-section\"\u003e\n\u003cdiv class=\"ro-label\"\u003eMAINTENANCE\u003c\/div\u003e\n\u003ch3 class=\"ro-title\"\u003eReplacement schedule for the Watts OneFlow Plus System\u003c\/h3\u003e\n\u003cdiv class=\"filter-schedule\"\u003e\n\u003cdiv class=\"schedule-card\"\u003e\n\u003cdiv class=\"interval\"\u003eEvery 3 Years\u003c\/div\u003e\n\u003ch4\u003eOneFlow Plus Combo Cartridge Pack\u003c\/h4\u003e\n\u003cp\u003eReplace both the TAC scale prevention cartridge and carbon block filter together. Combo pack ensures continued scale protection and chlorine reduction throughout the system's full capacity.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"schedule-card\"\u003e\n\u003cdiv class=\"interval\"\u003eEvery 1-2 Years\u003c\/div\u003e\n\u003ch4\u003eCarbon Block Cartridge Only\u003c\/h4\u003e\n\u003cp\u003eIf chlorine taste or odor returns before the 3-year mark, replace just the carbon block filter. The TAC cartridge can continue operating independently until full service interval.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"benefits-strip\"\u003e\n\u003cdiv class=\"benefit-item\"\u003e\n\u003cdiv class=\"bi-icon\"\u003e💧\u003c\/div\u003e\n\u003ch4\u003eMinerals Remain\u003c\/h4\u003e\n\u003cp\u003eTAC prevents scale without removing beneficial minerals. Water retains calcium and magnesium for taste and health.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"benefit-item\"\u003e\n\u003cdiv class=\"bi-icon\"\u003e💰\u003c\/div\u003e\n\u003ch4\u003eLower Operating Cost\u003c\/h4\u003e\n\u003cp\u003eNo salt purchases, no electricity consumption, no wastewater surcharges. Set and forget for years of passive operation.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"benefit-item\"\u003e\n\u003cdiv class=\"bi-icon\"\u003e⚙️\u003c\/div\u003e\n\u003ch4\u003eAppliance Protection\u003c\/h4\u003e\n\u003cp\u003eScale prevention extends the life of water heaters, dishwashers, and fixtures while maintaining flow efficiency throughout plumbing.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"benefit-item\"\u003e\n\u003cdiv class=\"bi-icon\"\u003e🏡\u003c\/div\u003e\n\u003ch4\u003eWhole Home Coverage\u003c\/h4\u003e\n\u003cp\u003e10 GPM flow rate supports simultaneous use across multiple fixtures without pressure drop or performance loss.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003c\/div\u003e","brand":"Watts","offers":[{"title":"Default Title","offer_id":42574110949547,"sku":"OFPSYS","price":1211.29,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0446\/7677\/6098\/files\/watts-ofpsys-salt-free-scale-prevention-and-water-filtration-system-oneflow-plus-system-857153.jpg?v=1762465659"},{"product_id":"watts-ofprfc-20-micron-radial-flow-carbon-block-cartridge-for-oneflow-plus-system","title":"Watts - OFPRFC - 20 Micron Radial Flow Carbon Block Cartridge for OneFlow Plus System","description":"\n\u003clink href=\"https:\/\/fonts.googleapis.com\/css2?family=DM+Serif+Display:ital@0;1\u0026amp;family=DM+Sans:wght@300;400;500;600\u0026amp;display=swap\" rel=\"stylesheet\"\u003e\n\u003cstyle\u003e\n .ro-wrap {\n --deep:#0a1628;--ocean:#0f3460;--blue:#1565c0;--sky:#2196f3;--aqua:#4dd0e1;\n --white:#ffffff;--offwhite:#f2f7fc;--slate:#dce8f5;--text:#0d1f38;--muted:#4a6280;\n --gold:#f59e0b;--radius:12px;\n font-family:'DM 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.faucet-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(min(200px,100%),1fr));gap:16px;margin-top:4px;}\n .ro-wrap .faucet-card{border:2px solid var(--slate);border-radius:var(--radius);padding:18px;text-align:center;}\n .ro-wrap .faucet-icon{font-size:28px !important;margin-bottom:10px;}\n .ro-wrap .faucet-card h4{font-size:18px !important;font-weight:600;color:var(--deep);margin-bottom:6px;}\n .ro-wrap .faucet-card p{font-size:15px !important;color:var(--muted);line-height:1.5;margin:0;}\n .ro-wrap .spec-cards{display:grid;grid-template-columns:repeat(auto-fill,minmax(min(180px,100%),1fr));gap:12px;margin-top:4px;}\n .ro-wrap .spec-card{background:var(--offwhite);border:1px solid var(--slate);border-radius:var(--radius);padding:16px;}\n .ro-wrap .spec-card .sc-label{font-size:13px !important;font-weight:700;letter-spacing:.08em;color:var(--sky);text-transform:uppercase;margin-bottom:4px;}\n .ro-wrap .spec-card .sc-value{font-size:20px !important;font-weight:600;color:var(--deep);margin-bottom:4px;}\n .ro-wrap .spec-card .sc-note{font-size:15px !important;color:var(--muted);}\n @media(max-width:640px){\n .ro-wrap .ro-hero{padding:36px 24px 32px;}\n .ro-wrap .ro-section{padding:28px 20px;}\n .ro-wrap .ro-feature-grid,.ro-wrap .faucet-grid,.ro-wrap .filter-schedule,.ro-wrap .spec-cards{grid-template-columns:1fr;}\n .ro-wrap .benefits-strip{flex-direction:column;}\n .ro-wrap .benefit-item{border-right:none;border-bottom:1px solid rgba(255,255,255,.1);}\n }\n \/* ── Nuclear override — force all text inside ro-wrap to be readable ── *\/\n .ro-wrap p,\n .ro-wrap li,\n .ro-wrap td,\n .ro-wrap th,\n .ro-wrap .ro-section \u003e p {\n font-size: 18px !important;\n line-height: 1.6 !important;\n }\n .ro-wrap .ro-section \u003e p,\n .ro-wrap .ro-callout p,\n .ro-wrap .stage-body p,\n .ro-wrap .ro-feature-card p,\n .ro-wrap .schedule-card p,\n .ro-wrap .faucet-card p,\n .ro-wrap .spec-card .sc-note,\n .ro-wrap .pro-tip p {\n font-size: 18px !important;\n line-height: 1.6 !important;\n }\n .ro-wrap h2 { font-size: clamp(26px,4vw,40px) !important; line-height:1.15 !important; }\n .ro-wrap h3 { font-size: 20px !important; line-height:1.3 !important; }\n .ro-wrap h4 { font-size: 18px !important; line-height:1.3 !important; }\n .ro-wrap .ro-label,\n .ro-wrap .stage-tag,\n .ro-wrap .sc-label { font-size: 14px !important; }\n .ro-wrap .ro-title { font-size: 24px !important; }\n .ro-wrap .interval { font-size: 22px !important; }\n .ro-wrap .stage-num { font-size: 16px !important; }\n .ro-wrap .ro-eyebrow { font-size: 14px !important; }\n .ro-wrap .ro-badge { font-size: 15px !important; }\n\u003c\/style\u003e\n\u003cdiv class=\"ro-wrap\"\u003e\n\n\u003cdiv class=\"ro-hero\"\u003e\n\u003cdiv class=\"ro-eyebrow\"\u003eWatts Premium Filtration\u003c\/div\u003e\n\u003ch2\u003e\n\u003cem\u003eOFPRFC\u003c\/em\u003e 20 Micron Radial Flow Carbon Block Cartridge\u003c\/h2\u003e\n\u003cdiv class=\"ro-tagline\"\u003eReplacement carbon filtration for OneFlow Plus anti-scale systems\u003c\/div\u003e\n\u003cdiv class=\"ro-badges\"\u003e\n\u003cspan class=\"ro-badge\"\u003e✓ Radial flow design\u003c\/span\u003e\n\u003cspan class=\"ro-badge\"\u003e✓ 20 micron filtration\u003c\/span\u003e\n\u003cspan class=\"ro-badge\"\u003e✓ Chlorine \u0026amp; taste reduction\u003c\/span\u003e\n\u003cspan class=\"ro-badge\"\u003e✓ OEM Watts quality\u003c\/span\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"ro-callout\"\u003e\n\u003cp\u003eThe Watts OFPRFC is a \u003cstrong\u003e20 micron radial flow carbon block cartridge\u003c\/strong\u003e designed specifically for the OneFlow Plus system (OFPSYS). This filter provides sediment reduction and activated carbon filtration to protect the downstream OneFlow media while improving taste and odor. Radial flow construction maximizes surface area and flow rate for whole-home applications.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"ro-section\"\u003e\n\u003cdiv class=\"ro-label\"\u003eKEY FEATURES\u003c\/div\u003e\n\u003ch3 class=\"ro-title\"\u003eWhat This Cartridge Does\u003c\/h3\u003e\n\u003cdiv class=\"ro-feature-grid\"\u003e\n\u003cdiv class=\"ro-feature-card\"\u003e\n\u003cdiv class=\"ro-feat-icon\"\u003e\u003cspan\u003e🔄\u003c\/span\u003e\u003c\/div\u003e\n\u003ch3\u003eRadial Flow Design\u003c\/h3\u003e\n\u003cp\u003eWater flows from outside to inside core, distributing sediment load evenly across entire surface for longer cartridge life and consistent flow rates\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"ro-feature-card\"\u003e\n\u003cdiv class=\"ro-feat-icon\"\u003e\u003cspan\u003e🧱\u003c\/span\u003e\u003c\/div\u003e\n\u003ch3\u003e20 Micron Filtration\u003c\/h3\u003e\n\u003cp\u003eCaptures sediment, silt, sand, rust, and particulate down to 20 microns to protect OneFlow template-assisted crystallization media\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"ro-feature-card\"\u003e\n\u003cdiv class=\"ro-feat-icon\"\u003e\u003cspan\u003e💧\u003c\/span\u003e\u003c\/div\u003e\n\u003ch3\u003eCarbon Block Media\u003c\/h3\u003e\n\u003cp\u003eActivated carbon reduces chlorine, taste, odor, and organic compounds that affect water quality before OneFlow conditioning\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"ro-feature-card\"\u003e\n\u003cdiv class=\"ro-feat-icon\"\u003e\u003cspan\u003e⚙️\u003c\/span\u003e\u003c\/div\u003e\n\u003ch3\u003eOEM Replacement\u003c\/h3\u003e\n\u003cp\u003eFactory-spec cartridge engineered by Watts for exact fit and performance in OneFlow Plus systems, not a generic substitute\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"ro-feature-card\"\u003e\n\u003cdiv class=\"ro-feat-icon\"\u003e\u003cspan\u003e🏠\u003c\/span\u003e\u003c\/div\u003e\n\u003ch3\u003eWhole-Home Flow\u003c\/h3\u003e\n\u003cp\u003eSized for residential flow rates up to 10 GPM, suitable for typical household water demand without pressure drop\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"ro-feature-card\"\u003e\n\u003cdiv class=\"ro-feat-icon\"\u003e\u003cspan\u003e📅\u003c\/span\u003e\u003c\/div\u003e\n\u003ch3\u003e6-Month Service Life\u003c\/h3\u003e\n\u003cp\u003eReplace every six months or sooner if flow rate decreases, depending on sediment load and water quality conditions\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"ro-section\"\u003e\n\u003cdiv class=\"ro-label\"\u003eCOMPATIBILITY \u0026amp; APPLICATIONS\u003c\/div\u003e\n\u003ch3 class=\"ro-title\"\u003eSystem Fitment\u003c\/h3\u003e\n\u003cp\u003eThis OFPRFC cartridge is designed exclusively for the Watts OneFlow Plus system (model OFPSYS). It serves as the pre-filtration stage ahead of the OneFlow scale prevention media cartridge. Not compatible with standard 10\" or 20\" filter housings. Confirm your system model before ordering. Ideal for municipal water supplies with moderate sediment and chlorine where scale prevention is required without salt-based softening.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"ro-callout\"\u003e\n\u003cp\u003eWatts has engineered water treatment solutions for over 140 years. Genuine OEM parts ensure your system operates as designed.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003c\/div\u003e","brand":"Isopure Water","offers":[{"title":"Default Title","offer_id":42624528941227,"sku":"OFPRFC","price":256.73,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0446\/7677\/6098\/files\/watts-ofprfc-20-micron-radial-flow-carbon-block-cartridge-for-oneflow-plus-system-465208.jpg?v=1762465737"},{"product_id":"watts-pw7100575-single-stage-lead-filtration-system-high-capacity-kwik-change-filter","title":"Watts-PW7100575 Single-Stage Lead Filtration System, High Capacity, Kwik-Change Filter","description":"\n\u003clink href=\"https:\/\/fonts.googleapis.com\/css2?family=DM+Serif+Display:ital@0;1\u0026amp;family=DM+Sans:wght@300;400;500;600\u0026amp;display=swap\" rel=\"stylesheet\"\u003e\n\u003cstyle\u003e\n .ro-wrap {\n --deep:#0a1628;--ocean:#0f3460;--blue:#1565c0;--sky:#2196f3;--aqua:#4dd0e1;\n --white:#ffffff;--offwhite:#f2f7fc;--slate:#dce8f5;--text:#0d1f38;--muted:#4a6280;\n --gold:#f59e0b;--radius:12px;\n font-family:'DM Sans',sans-serif;color:var(--text);line-height:1.6;-webkit-font-smoothing:antialiased;overflow-wrap:break-word;word-break:break-word;min-width:0;\n }\n .ro-wrap .ro-hero{background:linear-gradient(135deg,var(--deep) 0%,var(--ocean) 50%,#1a5276 100%);color:var(--white);padding:52px 40px 44px;position:relative;overflow:hidden;border-radius:var(--radius) var(--radius) 0 0;}\n .ro-wrap .ro-hero::before{content:'';position:absolute;inset:0;background:radial-gradient(ellipse 70% 55% at 95% 45%,rgba(77,208,225,.15) 0%,transparent 65%),radial-gradient(ellipse 40% 40% at 5% 80%,rgba(255,255,255,.05) 0%,transparent 60%);pointer-events:none;}\n .ro-wrap .ro-eyebrow{font-size:13px !important;font-weight:600;letter-spacing:.18em;text-transform:uppercase;color:var(--aqua);margin-bottom:12px;}\n .ro-wrap .ro-hero h2{font-family:'DM Serif Display',serif;font-size:clamp(26px,4vw,40px) !important;line-height:1.15;font-weight:400;margin-bottom:16px;color:var(--white);}\n .ro-wrap .ro-hero h2 em{font-style:italic;color:var(--aqua);}\n .ro-wrap .ro-tagline{font-size:18px !important;color:rgba(255,255,255,.75);font-weight:300;margin-bottom:28px;}\n .ro-wrap .ro-badges{display:flex;flex-wrap:wrap;gap:10px;}\n .ro-wrap .ro-badge{display:inline-flex;align-items:center;gap:6px;background:rgba(255,255,255,.12);border:1px solid rgba(255,255,255,.2);color:var(--white);font-size:15px !important;font-weight:500;padding:6px 14px;border-radius:40px;backdrop-filter:blur(6px);}\n .ro-wrap .ro-callout{background:var(--offwhite);border-left:4px solid var(--sky);padding:20px 24px;}\n .ro-wrap .ro-callout p{font-size:18px !important;color:var(--text);line-height:1.7;margin:0;}\n .ro-wrap .ro-callout strong{color:var(--ocean);}\n .ro-wrap .ro-section{padding:36px 40px;border-bottom:1px solid var(--slate);}\n .ro-wrap .ro-label{font-size:13px !important;font-weight:700;letter-spacing:.2em;text-transform:uppercase;color:var(--sky);margin-bottom:8px;}\n .ro-wrap .ro-title{font-family:'DM Serif Display',serif;font-size:24px !important;color:var(--deep);margin-bottom:20px;font-weight:400;}\n .ro-wrap .stage-pipeline{display:flex;flex-direction:column;gap:0;margin-top:4px;}\n .ro-wrap .stage-row{display:flex;flex-direction:row;gap:12px;position:relative;min-width:0;align-items:flex-start;width:100%;box-sizing:border-box;}\n .ro-wrap .stage-row:not(:last-child) .stage-line{position:absolute;left:17px;top:40px;bottom:0;width:2px;background:var(--slate);}\n .ro-wrap .stage-num{width:36px;height:36px;min-width:36px;max-width:36px;border-radius:50%;background:linear-gradient(135deg,var(--ocean),var(--sky));color:white;display:flex;align-items:center;justify-content:center;font-size:16px !important;font-weight:700;flex:0 0 36px;position:relative;z-index:1;margin-top:16px;}\n .ro-wrap .stage-body{background:var(--offwhite);border:1px solid var(--slate);border-radius:var(--radius);padding:16px 18px;margin-bottom:12px;flex:1 1 0;min-width:0;overflow:hidden;overflow-wrap:break-word;word-break:break-word;box-sizing:border-box;}\n .ro-wrap .stage-body h3{font-size:20px !important;font-weight:600;color:var(--deep);margin-bottom:8px;margin-top:6px;}\n .ro-wrap .stage-tag{display:block;font-size:12px !important;font-weight:700;letter-spacing:.04em;text-transform:uppercase;background:var(--slate);color:var(--ocean);padding:3px 8px;border-radius:4px;margin-bottom:8px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;max-width:100%;line-height:1.5 !important;box-sizing:border-box;}\n .ro-wrap .stage-body p{font-size:18px !important;color:var(--muted);line-height:1.6;margin:0;display:block;}\n .ro-wrap .stage-body .stage-part{font-size:15px !important;color:var(--sky);margin-top:6px;font-weight:500;}\n .ro-wrap .specs-table{width:100%;border-collapse:collapse;font-size:18px !important;}\n .ro-wrap .specs-table tr{border-bottom:1px solid var(--slate);}\n .ro-wrap .specs-table tr:last-child{border-bottom:none;}\n .ro-wrap .specs-table td{padding:11px 6px;vertical-align:top;}\n .ro-wrap .specs-table td:first-child{font-weight:500;color:var(--deep);width:44%;padding-right:16px;}\n .ro-wrap .specs-table td:last-child{color:var(--muted);}\n .ro-wrap .specs-table tr:hover td{background:var(--offwhite);}\n .ro-wrap .conditions-table{width:100%;border-collapse:collapse;font-size:18px !important;margin-top:4px;}\n .ro-wrap .conditions-table th{background:var(--deep);color:var(--white);font-size:15px !important;font-weight:600;letter-spacing:.06em;text-transform:uppercase;padding:10px 12px;text-align:left;}\n .ro-wrap .conditions-table th:first-child{border-radius:var(--radius) 0 0 0;}\n .ro-wrap .conditions-table th:last-child{border-radius:0 var(--radius) 0 0;}\n .ro-wrap .conditions-table td{padding:10px 12px;border-bottom:1px solid var(--slate);color:var(--text);}\n .ro-wrap .conditions-table tr:nth-child(even) td{background:var(--offwhite);}\n .ro-wrap .ro-feature-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(min(220px,100%),1fr));gap:16px;margin-top:4px;}\n .ro-wrap .ro-feature-card{background:var(--offwhite);border:1px solid var(--slate);border-radius:var(--radius);padding:20px 18px;}\n .ro-wrap .ro-feat-icon{width:40px;height:40px;background:linear-gradient(135deg,var(--ocean),var(--sky));border-radius:10px;display:flex;align-items:center;justify-content:center;margin-bottom:12px;}\n .ro-wrap .ro-feature-card h3{font-size:20px !important;font-weight:600;color:var(--deep);margin-bottom:6px;}\n .ro-wrap .ro-feature-card p{font-size:18px !important;color:var(--muted);line-height:1.55;margin:0;}\n .ro-wrap .pro-tip{display:block;background:#fffbeb;border:1px solid #f5d87a;border-radius:var(--radius);padding:18px 20px;margin-top:20px;box-sizing:border-box;width:100% !important;}\n .ro-wrap .pro-tip-icon{font-size:22px !important;display:inline;margin-right:8px;line-height:1.6 !important;}\n .ro-wrap .pro-tip p{font-size:18px !important;color:#5a4500;line-height:1.6 !important;margin:0;display:block;width:100%;}\n .ro-wrap .pro-tip strong{color:#3d2e00;}\n .ro-wrap .install-steps{counter-reset:step;list-style:none;padding:0;margin:4px 0 0;display:flex;flex-direction:column;gap:14px;}\n .ro-wrap .install-steps li{counter-increment:step;display:flex;align-items:flex-start;gap:14px;font-size:18px !important;color:var(--text);}\n .ro-wrap .install-steps li::before{content:counter(step);display:flex;align-items:center;justify-content:center;width:28px;height:28px;border-radius:50%;background:var(--ocean);color:white;font-size:15px !important;font-weight:700;flex-shrink:0;margin-top:1px;}\n .ro-wrap .filter-schedule{display:grid;grid-template-columns:repeat(auto-fill,minmax(min(180px,100%),1fr));gap:12px;margin-top:4px;}\n .ro-wrap .schedule-card{background:var(--offwhite);border:1px solid var(--slate);border-radius:var(--radius);padding:16px;}\n .ro-wrap .schedule-card .interval{font-size:22px !important;font-family:'DM Serif Display',serif;color:var(--sky);font-weight:400;margin-bottom:4px;}\n .ro-wrap .schedule-card h4{font-size:18px !important;font-weight:600;color:var(--deep);margin-bottom:4px;}\n .ro-wrap .schedule-card p{font-size:15px !important;color:var(--muted);margin:0;line-height:1.45;}\n .ro-wrap .benefits-strip{display:flex;flex-wrap:wrap;background:var(--deep);color:var(--white);border-radius:0 0 var(--radius) var(--radius);overflow:hidden;}\n .ro-wrap .benefit-item{flex:1 1 200px;padding:24px 22px;border-right:1px solid rgba(255,255,255,.1);}\n .ro-wrap .benefit-item:last-child{border-right:none;}\n .ro-wrap .bi-icon{font-size:22px !important;margin-bottom:10px;}\n .ro-wrap .benefit-item h4{font-size:15px !important;font-weight:600;color:var(--aqua);margin-bottom:5px;text-transform:uppercase;letter-spacing:.05em;}\n .ro-wrap .benefit-item p{font-size:15px !important;color:rgba(255,255,255,.65);line-height:1.55;margin:0;}\n .ro-wrap .faucet-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(min(200px,100%),1fr));gap:16px;margin-top:4px;}\n .ro-wrap .faucet-card{border:2px solid var(--slate);border-radius:var(--radius);padding:18px;text-align:center;}\n .ro-wrap .faucet-icon{font-size:28px !important;margin-bottom:10px;}\n .ro-wrap .faucet-card h4{font-size:18px !important;font-weight:600;color:var(--deep);margin-bottom:6px;}\n .ro-wrap .faucet-card p{font-size:15px !important;color:var(--muted);line-height:1.5;margin:0;}\n .ro-wrap .spec-cards{display:grid;grid-template-columns:repeat(auto-fill,minmax(min(180px,100%),1fr));gap:12px;margin-top:4px;}\n .ro-wrap .spec-card{background:var(--offwhite);border:1px solid var(--slate);border-radius:var(--radius);padding:16px;}\n .ro-wrap .spec-card .sc-label{font-size:13px !important;font-weight:700;letter-spacing:.08em;color:var(--sky);text-transform:uppercase;margin-bottom:4px;}\n .ro-wrap .spec-card .sc-value{font-size:20px !important;font-weight:600;color:var(--deep);margin-bottom:4px;}\n .ro-wrap .spec-card .sc-note{font-size:15px !important;color:var(--muted);}\n @media(max-width:640px){\n .ro-wrap .ro-hero{padding:36px 24px 32px;}\n .ro-wrap .ro-section{padding:28px 20px;}\n .ro-wrap .ro-feature-grid,.ro-wrap .faucet-grid,.ro-wrap .filter-schedule,.ro-wrap .spec-cards{grid-template-columns:1fr;}\n .ro-wrap .benefits-strip{flex-direction:column;}\n .ro-wrap .benefit-item{border-right:none;border-bottom:1px solid rgba(255,255,255,.1);}\n }\n \/* ── Nuclear override — force all text inside ro-wrap to be readable ── *\/\n .ro-wrap p,\n .ro-wrap li,\n .ro-wrap td,\n .ro-wrap th,\n .ro-wrap .ro-section \u003e p {\n font-size: 18px !important;\n line-height: 1.6 !important;\n }\n .ro-wrap .ro-section \u003e p,\n .ro-wrap .ro-callout p,\n .ro-wrap .stage-body p,\n .ro-wrap .ro-feature-card p,\n .ro-wrap .schedule-card p,\n .ro-wrap .faucet-card p,\n .ro-wrap .spec-card .sc-note,\n .ro-wrap .pro-tip p {\n font-size: 18px !important;\n line-height: 1.6 !important;\n }\n .ro-wrap h2 { font-size: clamp(26px,4vw,40px) !important; line-height:1.15 !important; }\n .ro-wrap h3 { font-size: 20px !important; line-height:1.3 !important; }\n .ro-wrap h4 { font-size: 18px !important; line-height:1.3 !important; }\n .ro-wrap .ro-label,\n .ro-wrap .stage-tag,\n .ro-wrap .sc-label { font-size: 14px !important; }\n .ro-wrap .ro-title { font-size: 24px !important; }\n .ro-wrap .interval { font-size: 22px !important; }\n .ro-wrap .stage-num { font-size: 16px !important; }\n .ro-wrap .ro-eyebrow { font-size: 14px !important; }\n .ro-wrap .ro-badge { font-size: 15px !important; }\n\u003c\/style\u003e\n\u003cdiv class=\"ro-wrap\"\u003e\n \u003cdiv class=\"ro-hero\"\u003e\n \u003cdiv class=\"ro-eyebrow\"\u003eWatts PW7100575\u003c\/div\u003e\n \u003ch2\u003eSingle-Stage Lead Filtration System with Kwik-Change Technology\u003c\/h2\u003e\n \u003cdiv class=\"ro-tagline\"\u003eHigh-capacity under-counter filtration that connects directly to your existing faucet\u003c\/div\u003e\n \u003cdiv class=\"ro-badges\"\u003e\n \u003cspan class=\"ro-badge\"\u003e99.2% Lead Reduction\u003c\/span\u003e\n \u003cspan class=\"ro-badge\"\u003e7,900 Gallon Capacity\u003c\/span\u003e\n \u003cspan class=\"ro-badge\"\u003e2 GPM Flow Rate\u003c\/span\u003e\n \u003cspan class=\"ro-badge\"\u003eNo Extra Faucet Required\u003c\/span\u003e\n \u003c\/div\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"ro-callout\"\u003e\n \u003cp\u003eThe Watts PW7100575 mounts under your sink and connects directly to the cold water supply line, eliminating the need to drill holes for a dedicated faucet. The system includes all fittings and tubing for standard installation, and the quarter-turn Kwik-Change filter design makes cartridge replacement straightforward when the time comes.\u003c\/p\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"ro-section\"\u003e\n \u003cdiv class=\"ro-label\"\u003eHOW IT WORKS\u003c\/div\u003e\n \u003cdiv class=\"ro-title\"\u003eSingle-stage filtration with certified lead reduction\u003c\/div\u003e\n \u003cdiv class=\"stage-pipeline\"\u003e\n \u003cdiv class=\"stage-row\"\u003e\n \u003cdiv class=\"stage-line\"\u003e\u003c\/div\u003e\n \u003cdiv class=\"stage-num\"\u003e1\u003c\/div\u003e\n \u003cdiv class=\"stage-body\"\u003e\n \u003cspan class=\"stage-tag\"\u003eINLET\u003c\/span\u003e\n \u003ch3\u003eCold Water Connection\u003c\/h3\u003e\n \u003cp\u003eSystem connects directly to your existing cold water supply line under the sink. Water enters at household pressure and flows to the filtration cartridge at up to 2 gallons per minute.\u003c\/p\u003e\n \u003c\/div\u003e\n \u003c\/div\u003e\n \u003cdiv class=\"stage-row\"\u003e\n \u003cdiv class=\"stage-line\"\u003e\u003c\/div\u003e\n \u003cdiv class=\"stage-num\"\u003e2\u003c\/div\u003e\n \u003cdiv class=\"stage-body\"\u003e\n \u003cspan class=\"stage-tag\"\u003eFILTRATION\u003c\/span\u003e\n \u003ch3\u003eLead Reduction and Contaminant Removal\u003c\/h3\u003e\n \u003cp\u003eThe high-capacity filter cartridge removes 99.2% of lead along with cysts, chlorine, sediment (sand, silt, rust, dirt), and taste and odor compounds. Certified performance across 7,900 gallons of use.\u003c\/p\u003e\n \u003cspan class=\"stage-part\"\u003e7,900 gallon cartridge life\u003c\/span\u003e\n \u003c\/div\u003e\n \u003c\/div\u003e\n \u003cdiv class=\"stage-row\"\u003e\n \u003cdiv class=\"stage-line\"\u003e\u003c\/div\u003e\n \u003cdiv class=\"stage-num\"\u003e3\u003c\/div\u003e\n \u003cdiv class=\"stage-body\"\u003e\n \u003cspan class=\"stage-tag\"\u003eOUTLET\u003c\/span\u003e\n \u003ch3\u003eFiltered Water to Faucet\u003c\/h3\u003e\n \u003cp\u003eClean water exits the system and travels through the included tubing to your existing kitchen or bathroom faucet. No separate tap required—filtered water comes from the cold side of your standard faucet.\u003c\/p\u003e\n \u003c\/div\u003e\n \u003c\/div\u003e\n \u003c\/div\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"ro-section\"\u003e\n \u003cdiv class=\"ro-label\"\u003eCOMPATIBILITY\u003c\/div\u003e\n \u003cdiv class=\"ro-title\"\u003eStandard kitchen and bathroom installations\u003c\/div\u003e\n \u003cp\u003eThe Watts PW7100575 is designed for standard under-counter installations where you want filtered water from your existing faucet. It connects to most kitchen and bathroom cold water supply lines using the included fittings and tubing. This system is ideal for homes with lead concerns or older plumbing, and it works with municipal or well water that has already been treated for microbial safety. The Kwik-Change cartridge design is compatible with Watts PWDWHCL1 replacement filters.\u003c\/p\u003e\n \u003c\/div\u003e\n\u003c\/div\u003e","brand":"Watts","offers":[{"title":"Default Title","offer_id":42656560447659,"sku":"PW7100575","price":797.52,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0446\/7677\/6098\/files\/watts-pw7100575-single-stage-lead-filtration-system-high-capacity-kwik-change-filter-995875.jpg?v=1759501858"},{"product_id":"watts-ofpsp-tac-cartridge-for-oneflow-plus-system","title":"Watts-OFPSP TAC Cartridge for OneFlow Plus System","description":"\n\u003clink href=\"https:\/\/fonts.googleapis.com\/css2?family=DM+Serif+Display:ital@0;1\u0026amp;family=DM+Sans:wght@300;400;500;600\u0026amp;display=swap\" rel=\"stylesheet\"\u003e\n\u003cstyle\u003e\n .ro-wrap {\n --deep:#0a1628;--ocean:#0f3460;--blue:#1565c0;--sky:#2196f3;--aqua:#4dd0e1;\n 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Display',serif;font-size:clamp(26px,4vw,40px) !important;line-height:1.15;font-weight:400;margin-bottom:16px;color:var(--white);}\n .ro-wrap .ro-hero h2 em{font-style:italic;color:var(--aqua);}\n .ro-wrap .ro-tagline{font-size:18px !important;color:rgba(255,255,255,.75);font-weight:300;margin-bottom:28px;}\n .ro-wrap .ro-badges{display:flex;flex-wrap:wrap;gap:10px;}\n .ro-wrap .ro-badge{display:inline-flex;align-items:center;gap:6px;background:rgba(255,255,255,.12);border:1px solid rgba(255,255,255,.2);color:var(--white);font-size:15px !important;font-weight:500;padding:6px 14px;border-radius:40px;backdrop-filter:blur(6px);}\n .ro-wrap .ro-callout{background:var(--offwhite);border-left:4px solid var(--sky);padding:20px 24px;}\n .ro-wrap .ro-callout p{font-size:18px !important;color:var(--text);line-height:1.7;margin:0;}\n .ro-wrap .ro-callout strong{color:var(--ocean);}\n .ro-wrap .ro-section{padding:36px 40px;border-bottom:1px solid var(--slate);}\n .ro-wrap .ro-label{font-size:13px !important;font-weight:700;letter-spacing:.2em;text-transform:uppercase;color:var(--sky);margin-bottom:8px;}\n .ro-wrap .ro-title{font-family:'DM Serif Display',serif;font-size:24px !important;color:var(--deep);margin-bottom:20px;font-weight:400;}\n .ro-wrap .stage-pipeline{display:flex;flex-direction:column;gap:0;margin-top:4px;}\n .ro-wrap .stage-row{display:flex;flex-direction:row;gap:12px;position:relative;min-width:0;align-items:flex-start;width:100%;box-sizing:border-box;}\n .ro-wrap .stage-row:not(:last-child) .stage-line{position:absolute;left:17px;top:40px;bottom:0;width:2px;background:var(--slate);}\n .ro-wrap .stage-num{width:36px;height:36px;min-width:36px;max-width:36px;border-radius:50%;background:linear-gradient(135deg,var(--ocean),var(--sky));color:white;display:flex;align-items:center;justify-content:center;font-size:16px !important;font-weight:700;flex:0 0 36px;position:relative;z-index:1;margin-top:16px;}\n .ro-wrap .stage-body{background:var(--offwhite);border:1px solid var(--slate);border-radius:var(--radius);padding:16px 18px;margin-bottom:12px;flex:1 1 0;min-width:0;overflow:hidden;overflow-wrap:break-word;word-break:break-word;box-sizing:border-box;}\n .ro-wrap .stage-body h3{font-size:20px !important;font-weight:600;color:var(--deep);margin-bottom:8px;margin-top:6px;}\n .ro-wrap .stage-tag{display:block;font-size:12px !important;font-weight:700;letter-spacing:.04em;text-transform:uppercase;background:var(--slate);color:var(--ocean);padding:3px 8px;border-radius:4px;margin-bottom:8px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;max-width:100%;line-height:1.5 !important;box-sizing:border-box;}\n .ro-wrap .stage-body p{font-size:18px !important;color:var(--muted);line-height:1.6;margin:0;display:block;}\n .ro-wrap .stage-body .stage-part{font-size:15px !important;color:var(--sky);margin-top:6px;font-weight:500;}\n .ro-wrap .specs-table{width:100%;border-collapse:collapse;font-size:18px !important;}\n .ro-wrap .specs-table tr{border-bottom:1px solid var(--slate);}\n .ro-wrap .specs-table tr:last-child{border-bottom:none;}\n .ro-wrap .specs-table td{padding:11px 6px;vertical-align:top;}\n .ro-wrap .specs-table td:first-child{font-weight:500;color:var(--deep);width:44%;padding-right:16px;}\n .ro-wrap .specs-table td:last-child{color:var(--muted);}\n .ro-wrap .specs-table tr:hover td{background:var(--offwhite);}\n .ro-wrap .conditions-table{width:100%;border-collapse:collapse;font-size:18px !important;margin-top:4px;}\n .ro-wrap .conditions-table th{background:var(--deep);color:var(--white);font-size:15px !important;font-weight:600;letter-spacing:.06em;text-transform:uppercase;padding:10px 12px;text-align:left;}\n .ro-wrap .conditions-table th:first-child{border-radius:var(--radius) 0 0 0;}\n .ro-wrap .conditions-table th:last-child{border-radius:0 var(--radius) 0 0;}\n .ro-wrap .conditions-table td{padding:10px 12px;border-bottom:1px solid var(--slate);color:var(--text);}\n .ro-wrap .conditions-table tr:nth-child(even) td{background:var(--offwhite);}\n .ro-wrap .ro-feature-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(min(220px,100%),1fr));gap:16px;margin-top:4px;}\n .ro-wrap .ro-feature-card{background:var(--offwhite);border:1px solid var(--slate);border-radius:var(--radius);padding:20px 18px;}\n .ro-wrap .ro-feat-icon{width:40px;height:40px;background:linear-gradient(135deg,var(--ocean),var(--sky));border-radius:10px;display:flex;align-items:center;justify-content:center;margin-bottom:12px;}\n .ro-wrap .ro-feature-card h3{font-size:20px !important;font-weight:600;color:var(--deep);margin-bottom:6px;}\n .ro-wrap .ro-feature-card p{font-size:18px !important;color:var(--muted);line-height:1.55;margin:0;}\n .ro-wrap .pro-tip{display:block;background:#fffbeb;border:1px solid #f5d87a;border-radius:var(--radius);padding:18px 20px;margin-top:20px;box-sizing:border-box;width:100% !important;}\n .ro-wrap .pro-tip-icon{font-size:22px 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var(--slate);border-radius:var(--radius);padding:16px;}\n .ro-wrap .schedule-card .interval{font-size:22px !important;font-family:'DM Serif Display',serif;color:var(--sky);font-weight:400;margin-bottom:4px;}\n .ro-wrap .schedule-card h4{font-size:18px !important;font-weight:600;color:var(--deep);margin-bottom:4px;}\n .ro-wrap .schedule-card p{font-size:15px !important;color:var(--muted);margin:0;line-height:1.45;}\n .ro-wrap .benefits-strip{display:flex;flex-wrap:wrap;background:var(--deep);color:var(--white);border-radius:0 0 var(--radius) var(--radius);overflow:hidden;}\n .ro-wrap .benefit-item{flex:1 1 200px;padding:24px 22px;border-right:1px solid rgba(255,255,255,.1);}\n .ro-wrap .benefit-item:last-child{border-right:none;}\n .ro-wrap .bi-icon{font-size:22px !important;margin-bottom:10px;}\n .ro-wrap .benefit-item h4{font-size:15px !important;font-weight:600;color:var(--aqua);margin-bottom:5px;text-transform:uppercase;letter-spacing:.05em;}\n .ro-wrap .benefit-item p{font-size:15px !important;color:rgba(255,255,255,.65);line-height:1.55;margin:0;}\n .ro-wrap .faucet-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(min(200px,100%),1fr));gap:16px;margin-top:4px;}\n .ro-wrap .faucet-card{border:2px solid var(--slate);border-radius:var(--radius);padding:18px;text-align:center;}\n .ro-wrap .faucet-icon{font-size:28px !important;margin-bottom:10px;}\n .ro-wrap .faucet-card h4{font-size:18px !important;font-weight:600;color:var(--deep);margin-bottom:6px;}\n .ro-wrap .faucet-card p{font-size:15px !important;color:var(--muted);line-height:1.5;margin:0;}\n .ro-wrap .spec-cards{display:grid;grid-template-columns:repeat(auto-fill,minmax(min(180px,100%),1fr));gap:12px;margin-top:4px;}\n .ro-wrap .spec-card{background:var(--offwhite);border:1px solid var(--slate);border-radius:var(--radius);padding:16px;}\n .ro-wrap .spec-card .sc-label{font-size:13px !important;font-weight:700;letter-spacing:.08em;color:var(--sky);text-transform:uppercase;margin-bottom:4px;}\n .ro-wrap .spec-card .sc-value{font-size:20px !important;font-weight:600;color:var(--deep);margin-bottom:4px;}\n .ro-wrap .spec-card .sc-note{font-size:15px !important;color:var(--muted);}\n @media(max-width:640px){\n .ro-wrap .ro-hero{padding:36px 24px 32px;}\n .ro-wrap .ro-section{padding:28px 20px;}\n .ro-wrap .ro-feature-grid,.ro-wrap .faucet-grid,.ro-wrap .filter-schedule,.ro-wrap .spec-cards{grid-template-columns:1fr;}\n .ro-wrap .benefits-strip{flex-direction:column;}\n .ro-wrap .benefit-item{border-right:none;border-bottom:1px solid rgba(255,255,255,.1);}\n }\n \/* ── Nuclear override — force all text inside ro-wrap to be readable ── *\/\n .ro-wrap p,\n .ro-wrap li,\n .ro-wrap td,\n .ro-wrap th,\n .ro-wrap .ro-section \u003e p {\n font-size: 18px !important;\n line-height: 1.6 !important;\n }\n .ro-wrap .ro-section \u003e p,\n .ro-wrap .ro-callout p,\n .ro-wrap .stage-body p,\n .ro-wrap .ro-feature-card p,\n .ro-wrap .schedule-card p,\n .ro-wrap .faucet-card p,\n .ro-wrap .spec-card .sc-note,\n .ro-wrap .pro-tip p {\n font-size: 18px !important;\n line-height: 1.6 !important;\n }\n .ro-wrap h2 { font-size: clamp(26px,4vw,40px) !important; line-height:1.15 !important; }\n .ro-wrap h3 { font-size: 20px !important; line-height:1.3 !important; }\n .ro-wrap h4 { font-size: 18px !important; line-height:1.3 !important; }\n .ro-wrap .ro-label,\n .ro-wrap .stage-tag,\n .ro-wrap .sc-label { font-size: 14px !important; }\n .ro-wrap .ro-title { font-size: 24px !important; }\n .ro-wrap .interval { font-size: 22px !important; }\n .ro-wrap .stage-num { font-size: 16px !important; }\n .ro-wrap .ro-eyebrow { font-size: 14px !important; }\n .ro-wrap .ro-badge { font-size: 15px !important; }\n\u003c\/style\u003e\n\u003cdiv class=\"ro-wrap\"\u003e\n\n\u003cdiv class=\"ro-hero\"\u003e\n\u003cdiv class=\"ro-eyebrow\"\u003eWatts Water Technologies\u003c\/div\u003e\n\u003ch2\u003e\n\u003cem\u003eWatts OFPSP TAC Cartridge\u003c\/em\u003e for OneFlow Plus System\u003c\/h2\u003e\n\u003cdiv class=\"ro-tagline\"\u003eTemplate Assisted Crystallization replacement cartridge engineered for salt-free scale prevention in whole-home water systems\u003c\/div\u003e\n\u003cdiv class=\"ro-badges\"\u003e\n\u003cspan class=\"ro-badge\"\u003e✓ Salt-Free Scale Prevention\u003c\/span\u003e\n\u003cspan class=\"ro-badge\"\u003e✓ TAC Technology\u003c\/span\u003e\n\u003cspan class=\"ro-badge\"\u003e✓ OEM Replacement\u003c\/span\u003e\n\u003cspan class=\"ro-badge\"\u003e✓ Watts Quality\u003c\/span\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"ro-callout\"\u003e\n\u003cp\u003eThe Watts OFPSP TAC cartridge is the factory replacement for OneFlow Plus (OFPSYS) whole-home scale prevention systems. Using \u003cstrong\u003eTemplate Assisted Crystallization (TAC)\u003c\/strong\u003e media, this cartridge converts dissolved hardness minerals into harmless microscopic crystals that won't adhere to pipes, fixtures, or appliances—without salt, waste water, or electricity.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"ro-section\"\u003e\n\u003cdiv class=\"ro-label\"\u003eKEY FEATURES\u003c\/div\u003e\n\u003ch3 class=\"ro-title\"\u003eWhat Makes This Cartridge Essential\u003c\/h3\u003e\n\u003cdiv class=\"ro-feature-grid\"\u003e\n\u003cdiv class=\"ro-feature-card\"\u003e\n\u003cdiv class=\"ro-feat-icon\"\u003e\u003cspan\u003e🔬\u003c\/span\u003e\u003c\/div\u003e\n\u003ch3\u003eTAC Media Technology\u003c\/h3\u003e\n\u003cp\u003eTemplate Assisted Crystallization converts calcium and magnesium into stable crystals that remain suspended in water, preventing scale buildup without removing beneficial minerals.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"ro-feature-card\"\u003e\n\u003cdiv class=\"ro-feat-icon\"\u003e\u003cspan\u003e♻️\u003c\/span\u003e\u003c\/div\u003e\n\u003ch3\u003eZero Waste Operation\u003c\/h3\u003e\n\u003cp\u003eNo backwashing, no drain connection, no salt or chemicals. The cartridge operates continuously without regeneration cycles or wastewater discharge.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"ro-feature-card\"\u003e\n\u003cdiv class=\"ro-feat-icon\"\u003e\u003cspan\u003e⚙️\u003c\/span\u003e\u003c\/div\u003e\n\u003ch3\u003eOEM Replacement\u003c\/h3\u003e\n\u003cp\u003eFactory-engineered cartridge designed specifically for Watts OneFlow Plus systems. Direct fit with consistent performance specifications and service life.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"ro-feature-card\"\u003e\n\u003cdiv class=\"ro-feat-icon\"\u003e\u003cspan\u003e🏠\u003c\/span\u003e\u003c\/div\u003e\n\u003ch3\u003eWhole-Home Protection\u003c\/h3\u003e\n\u003cp\u003eProtects tankless water heaters, boilers, fixtures, and appliances throughout your entire home from scale-related efficiency loss and damage.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"ro-feature-card\"\u003e\n\u003cdiv class=\"ro-feat-icon\"\u003e\u003cspan\u003e🔧\u003c\/span\u003e\u003c\/div\u003e\n\u003ch3\u003eSimple Replacement\u003c\/h3\u003e\n\u003cp\u003eCartridge-based design allows for straightforward service intervals without professional installation. Typical service life varies by water hardness and usage.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"ro-feature-card\"\u003e\n\u003cdiv class=\"ro-feat-icon\"\u003e\u003cspan\u003e💧\u003c\/span\u003e\u003c\/div\u003e\n\u003ch3\u003eMaintains Mineral Balance\u003c\/h3\u003e\n\u003cp\u003eUnlike ion-exchange softeners, TAC technology retains healthy minerals while preventing scale formation—ideal for drinking water quality and appliance longevity.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"ro-section\"\u003e\n\u003cdiv class=\"ro-label\"\u003eCOMPATIBILITY \u0026amp; APPLICATIONS\u003c\/div\u003e\n\u003ch3 class=\"ro-title\"\u003eSystem Compatibility\u003c\/h3\u003e\n\u003cp\u003eThe Watts OFPSP cartridge is the OEM replacement for \u003cstrong\u003eWatts OneFlow Plus (OFPSYS)\u003c\/strong\u003e whole-home scale prevention systems. Designed for residential and light commercial applications where salt-free water conditioning is required. Compatible with municipal and well water supplies. Service life depends on water hardness levels and daily usage—consult your system documentation for replacement intervals based on your water conditions.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"ro-callout\"\u003e\n\u003cp\u003eWatts has been engineering water treatment solutions for residential and commercial applications for decades, and their TAC cartridges are manufactured to the same quality standards as the systems they serve.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003c\/div\u003e","brand":"Watts","offers":[{"title":"Default Title","offer_id":42659322822827,"sku":"OFPSP","price":525.38,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0446\/7677\/6098\/files\/watts-ofpsp-tac-cartridge-for-oneflow-plus-system-141605.jpg?v=1791927666"},{"product_id":"watts-premier-wp500024-standard-annual-water-filter-replacement-kit-white-7-pack","title":"Compatible for Watts Premier WP500024 Standard Annual Water Filter Replacement Kit, White, 7 Pack by IPW Industries","description":"\n\u003clink href=\"https:\/\/fonts.googleapis.com\/css2?family=DM+Serif+Display:ital@0;1\u0026amp;family=DM+Sans:wght@300;400;500;600\u0026amp;display=swap\" rel=\"stylesheet\"\u003e\n\u003cstyle\u003e\n .ro-wrap {\n --deep:#0a1628;--ocean:#0f3460;--blue:#1565c0;--sky:#2196f3;--aqua:#4dd0e1;\n --white:#ffffff;--offwhite:#f2f7fc;--slate:#dce8f5;--text:#0d1f38;--muted:#4a6280;\n --gold:#f59e0b;--radius:12px;\n font-family:'DM Sans',sans-serif;color:var(--text);line-height:1.6;-webkit-font-smoothing:antialiased;overflow-wrap:break-word;word-break:break-word;min-width:0;\n }\n .ro-wrap .ro-hero{background:linear-gradient(135deg,var(--deep) 0%,var(--ocean) 50%,#1a5276 100%);color:var(--white);padding:52px 40px 44px;position:relative;overflow:hidden;border-radius:var(--radius) var(--radius) 0 0;}\n .ro-wrap .ro-hero::before{content:'';position:absolute;inset:0;background:radial-gradient(ellipse 70% 55% at 95% 45%,rgba(77,208,225,.15) 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var(--radius);overflow:hidden;}\n .ro-wrap .benefit-item{flex:1 1 200px;padding:24px 22px;border-right:1px solid rgba(255,255,255,.1);}\n .ro-wrap .benefit-item:last-child{border-right:none;}\n .ro-wrap .bi-icon{font-size:22px !important;margin-bottom:10px;}\n .ro-wrap .benefit-item h4{font-size:15px !important;font-weight:600;color:var(--aqua);margin-bottom:5px;text-transform:uppercase;letter-spacing:.05em;}\n .ro-wrap .benefit-item p{font-size:15px !important;color:rgba(255,255,255,.65);line-height:1.55;margin:0;}\n .ro-wrap .faucet-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(min(200px,100%),1fr));gap:16px;margin-top:4px;}\n .ro-wrap .faucet-card{border:2px solid var(--slate);border-radius:var(--radius);padding:18px;text-align:center;}\n .ro-wrap .faucet-icon{font-size:28px !important;margin-bottom:10px;}\n .ro-wrap .faucet-card h4{font-size:18px !important;font-weight:600;color:var(--deep);margin-bottom:6px;}\n .ro-wrap .faucet-card p{font-size:15px !important;color:var(--muted);line-height:1.5;margin:0;}\n .ro-wrap .spec-cards{display:grid;grid-template-columns:repeat(auto-fill,minmax(min(180px,100%),1fr));gap:12px;margin-top:4px;}\n .ro-wrap .spec-card{background:var(--offwhite);border:1px solid var(--slate);border-radius:var(--radius);padding:16px;}\n .ro-wrap .spec-card .sc-label{font-size:13px !important;font-weight:700;letter-spacing:.08em;color:var(--sky);text-transform:uppercase;margin-bottom:4px;}\n .ro-wrap .spec-card .sc-value{font-size:20px !important;font-weight:600;color:var(--deep);margin-bottom:4px;}\n .ro-wrap .spec-card .sc-note{font-size:15px !important;color:var(--muted);}\n @media(max-width:640px){\n .ro-wrap .ro-hero{padding:36px 24px 32px;}\n .ro-wrap .ro-section{padding:28px 20px;}\n .ro-wrap .ro-feature-grid,.ro-wrap .faucet-grid,.ro-wrap .filter-schedule,.ro-wrap .spec-cards{grid-template-columns:1fr;}\n .ro-wrap .benefits-strip{flex-direction:column;}\n .ro-wrap .benefit-item{border-right:none;border-bottom:1px solid rgba(255,255,255,.1);}\n }\n \/* ── Nuclear override — force all text inside ro-wrap to be readable ── *\/\n .ro-wrap p,\n .ro-wrap li,\n .ro-wrap td,\n .ro-wrap th,\n .ro-wrap .ro-section \u003e p {\n font-size: 18px !important;\n line-height: 1.6 !important;\n }\n .ro-wrap .ro-section \u003e p,\n .ro-wrap .ro-callout p,\n .ro-wrap .stage-body p,\n .ro-wrap .ro-feature-card p,\n .ro-wrap .schedule-card p,\n .ro-wrap .faucet-card p,\n .ro-wrap .spec-card .sc-note,\n .ro-wrap .pro-tip p {\n font-size: 18px !important;\n line-height: 1.6 !important;\n }\n .ro-wrap h2 { font-size: clamp(26px,4vw,40px) !important; line-height:1.15 !important; }\n .ro-wrap h3 { font-size: 20px !important; line-height:1.3 !important; }\n .ro-wrap h4 { font-size: 18px !important; line-height:1.3 !important; }\n .ro-wrap .ro-label,\n .ro-wrap .stage-tag,\n .ro-wrap .sc-label { font-size: 14px !important; }\n .ro-wrap .ro-title { font-size: 24px !important; }\n .ro-wrap .interval { font-size: 22px !important; }\n .ro-wrap .stage-num { font-size: 16px !important; }\n .ro-wrap .ro-eyebrow { font-size: 14px !important; }\n .ro-wrap .ro-badge { font-size: 15px !important; }\n\u003c\/style\u003e\n\u003cdiv class=\"ro-wrap\"\u003e\n\n\u003cdiv class=\"ro-hero\"\u003e\n\u003cdiv class=\"ro-eyebrow\"\u003eAnnual Filter Kit · 7-Pack\u003c\/div\u003e\n\u003ch2\u003eCompatible for \u003cem\u003eWatts Premier WP500024\u003c\/em\u003e Standard Annual Replacement Kit\u003c\/h2\u003e\n\u003cp class=\"ro-tagline\"\u003eA complete year of filtration for Watts Premier RO-TFM-5SV, WP-ST6DM, WP-5, and WP5-50 reverse osmosis systems. Seven filters engineered to match OEM specifications without the premium price.\u003c\/p\u003e\n\u003cdiv class=\"ro-badges\"\u003e\n\u003cspan class=\"ro-badge\"\u003e12-Month Supply\u003c\/span\u003e\n\u003cspan class=\"ro-badge\"\u003eIPW Compatible\u003c\/span\u003e\n\u003cspan class=\"ro-badge\"\u003eMulti-Stage Protection\u003c\/span\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"ro-section\"\u003e\n\u003cdiv class=\"ro-label\"\u003eWHY IT WORKS\u003c\/div\u003e\n\u003ch3 class=\"ro-title\"\u003eThree layers of defense against sediment, chlorine, and taste\u003c\/h3\u003e\n\u003cdiv class=\"ro-feature-grid\"\u003e\n\u003cdiv class=\"ro-feature-card\"\u003e\n\u003cdiv class=\"ro-feat-icon\"\u003e\u003cspan\u003e🛡️\u003c\/span\u003e\u003c\/div\u003e\n\u003ch3\u003eSediment Pre-Filtration\u003c\/h3\u003e\n\u003cp\u003eTwo 5-micron sediment filters (WP104017) capture dirt, silt, rust, and particulate matter before they reach the RO membrane. Protects downstream components and extends system life.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"ro-feature-card\"\u003e\n\u003cdiv class=\"ro-feat-icon\"\u003e\u003cspan\u003e⚫\u003c\/span\u003e\u003c\/div\u003e\n\u003ch3\u003eCarbon Block Protection\u003c\/h3\u003e\n\u003cp\u003eFour 5-micron carbon pre-filters (WP101009) reduce chlorine, volatile organic compounds, and materials that cause taste and odor issues. Essential for membrane longevity.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"ro-feature-card\"\u003e\n\u003cdiv class=\"ro-feat-icon\"\u003e\u003cspan\u003e💧\u003c\/span\u003e\u003c\/div\u003e\n\u003ch3\u003eFinal Polish Stage\u003c\/h3\u003e\n\u003cp\u003eOne 10-inch GAC inline post-filter (WP560010) treats water after the storage tank. Granular activated carbon removes any residual taste before water reaches your glass.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"ro-feature-card\"\u003e\n\u003cdiv class=\"ro-feat-icon\"\u003e\u003cspan\u003e📅\u003c\/span\u003e\u003c\/div\u003e\n\u003ch3\u003eAnnual Supply Included\u003c\/h3\u003e\n\u003cp\u003eSeven filters organized for a full year of maintenance. No guessing which filter goes where or when to order next. Everything you need in one kit.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"ro-section\"\u003e\n\u003cdiv class=\"ro-label\"\u003eCOMPATIBILITY\u003c\/div\u003e\n\u003ch3 class=\"ro-title\"\u003eDesigned for Watts Premier reverse osmosis systems\u003c\/h3\u003e\n\u003cp\u003eThis kit is compatible with Watts Premier models RO-TFM-5SV, WP-ST6DM, WP-5, and WP5-50. Replaces OEM part number WP500024. Verify your system model before ordering to ensure proper fit and performance.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"ro-section\"\u003e\n\u003cdiv class=\"ro-label\"\u003eMAINTENANCE\u003c\/div\u003e\n\u003ch3 class=\"ro-title\"\u003eReplacement schedule for year-round performance\u003c\/h3\u003e\n\u003cdiv class=\"filter-schedule\"\u003e\n\u003cdiv class=\"schedule-card\"\u003e\n\u003cdiv class=\"interval\"\u003eEvery 3 Months\u003c\/div\u003e\n\u003ch4\u003eSediment Pre-Filters\u003c\/h4\u003e\n\u003cp\u003eReplace one 5-micron sediment filter (WP104017). Two included for bi-annual replacement. High sediment environments may require more frequent changes.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"schedule-card\"\u003e\n\u003cdiv class=\"interval\"\u003eEvery 3 Months\u003c\/div\u003e\n\u003ch4\u003eCarbon Pre-Filters\u003c\/h4\u003e\n\u003cp\u003eReplace one 5-micron carbon block filter (WP101009). Four included for quarterly replacement throughout the year. Monitor for taste changes.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"schedule-card\"\u003e\n\u003cdiv class=\"interval\"\u003eEvery 12 Months\u003c\/div\u003e\n\u003ch4\u003eGAC Post-Filter\u003c\/h4\u003e\n\u003cp\u003eReplace the 10-inch granular activated carbon inline post-filter (WP560010) annually. One included. Ensures final polishing stage remains effective.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"benefits-strip\"\u003e\n\u003cdiv class=\"benefit-item\"\u003e\n\u003cdiv class=\"bi-icon\"\u003e💰\u003c\/div\u003e\n\u003ch4\u003eCost-Effective Alternative\u003c\/h4\u003e\n\u003cp\u003eIPW compatible filters deliver OEM-level performance at a fraction of the cost\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"benefit-item\"\u003e\n\u003cdiv class=\"bi-icon\"\u003e🔧\u003c\/div\u003e\n\u003ch4\u003eStandard Sizing\u003c\/h4\u003e\n\u003cp\u003eDrop-in replacement for Watts Premier systems with no modification required\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"benefit-item\"\u003e\n\u003cdiv class=\"bi-icon\"\u003e📦\u003c\/div\u003e\n\u003ch4\u003eComplete Annual Kit\u003c\/h4\u003e\n\u003cp\u003eSeven filters organized for hassle-free maintenance over 12 months\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"benefit-item\"\u003e\n\u003cdiv class=\"bi-icon\"\u003e🧪\u003c\/div\u003e\n\u003ch4\u003eMulti-Stage Filtration\u003c\/h4\u003e\n\u003cp\u003eSediment, carbon block, and GAC polishing for comprehensive water treatment\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003c\/div\u003e","brand":"Isopure Water","offers":[{"title":"Default Title","offer_id":42682855096491,"sku":"IPW - 2SED 4 CARB 1INLINE","price":52.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0446\/7677\/6098\/files\/product-7641776947371-padded.jpg?v=1777260919"},{"product_id":"watts-wqc4ro13-100-kwik-change-ro-replacement-filter-annual-bundle-with-membrane","title":"Watts WQC4RO13-100 Kwik-Change RO Replacement Filter Annual Bundle With Membrane","description":"\n\u003clink href=\"https:\/\/fonts.googleapis.com\/css2?family=DM+Serif+Display:ital@0;1\u0026amp;family=DM+Sans:wght@300;400;500;600\u0026amp;display=swap\" rel=\"stylesheet\"\u003e\n\u003cstyle\u003e\n .ro-wrap {\n --deep:#0a1628;--ocean:#0f3460;--blue:#1565c0;--sky:#2196f3;--aqua:#4dd0e1;\n --white:#ffffff;--offwhite:#f2f7fc;--slate:#dce8f5;--text:#0d1f38;--muted:#4a6280;\n --gold:#f59e0b;--radius:12px;\n font-family:'DM Sans',sans-serif;color:var(--text);line-height:1.6;-webkit-font-smoothing:antialiased;overflow-wrap:break-word;word-break:break-word;min-width:0;\n }\n .ro-wrap .ro-hero{background:linear-gradient(135deg,var(--deep) 0%,var(--ocean) 50%,#1a5276 100%);color:var(--white);padding:52px 40px 44px;position:relative;overflow:hidden;border-radius:var(--radius) var(--radius) 0 0;}\n .ro-wrap .ro-hero::before{content:'';position:absolute;inset:0;background:radial-gradient(ellipse 70% 55% at 95% 45%,rgba(77,208,225,.15) 0%,transparent 65%),radial-gradient(ellipse 40% 40% at 5% 80%,rgba(255,255,255,.05) 0%,transparent 60%);pointer-events:none;}\n .ro-wrap .ro-eyebrow{font-size:13px !important;font-weight:600;letter-spacing:.18em;text-transform:uppercase;color:var(--aqua);margin-bottom:12px;}\n .ro-wrap .ro-hero h2{font-family:'DM Serif Display',serif;font-size:clamp(26px,4vw,40px) !important;line-height:1.15;font-weight:400;margin-bottom:16px;color:var(--white);}\n .ro-wrap .ro-hero h2 em{font-style:italic;color:var(--aqua);}\n .ro-wrap .ro-tagline{font-size:18px !important;color:rgba(255,255,255,.75);font-weight:300;margin-bottom:28px;}\n .ro-wrap .ro-badges{display:flex;flex-wrap:wrap;gap:10px;}\n .ro-wrap .ro-badge{display:inline-flex;align-items:center;gap:6px;background:rgba(255,255,255,.12);border:1px solid rgba(255,255,255,.2);color:var(--white);font-size:15px !important;font-weight:500;padding:6px 14px;border-radius:40px;backdrop-filter:blur(6px);}\n .ro-wrap .ro-callout{background:var(--offwhite);border-left:4px solid var(--sky);padding:20px 24px;}\n .ro-wrap .ro-callout p{font-size:18px !important;color:var(--text);line-height:1.7;margin:0;}\n .ro-wrap .ro-callout strong{color:var(--ocean);}\n .ro-wrap .ro-section{padding:36px 40px;border-bottom:1px solid var(--slate);}\n .ro-wrap .ro-label{font-size:13px !important;font-weight:700;letter-spacing:.2em;text-transform:uppercase;color:var(--sky);margin-bottom:8px;}\n .ro-wrap .ro-title{font-family:'DM Serif Display',serif;font-size:24px !important;color:var(--deep);margin-bottom:20px;font-weight:400;}\n .ro-wrap .stage-pipeline{display:flex;flex-direction:column;gap:0;margin-top:4px;}\n .ro-wrap .stage-row{display:flex;flex-direction:row;gap:12px;position:relative;min-width:0;align-items:flex-start;width:100%;box-sizing:border-box;}\n .ro-wrap .stage-row:not(:last-child) .stage-line{position:absolute;left:17px;top:40px;bottom:0;width:2px;background:var(--slate);}\n .ro-wrap .stage-num{width:36px;height:36px;min-width:36px;max-width:36px;border-radius:50%;background:linear-gradient(135deg,var(--ocean),var(--sky));color:white;display:flex;align-items:center;justify-content:center;font-size:16px !important;font-weight:700;flex:0 0 36px;position:relative;z-index:1;margin-top:16px;}\n .ro-wrap .stage-body{background:var(--offwhite);border:1px solid var(--slate);border-radius:var(--radius);padding:16px 18px;margin-bottom:12px;flex:1 1 0;min-width:0;overflow:hidden;overflow-wrap:break-word;word-break:break-word;box-sizing:border-box;}\n .ro-wrap .stage-body h3{font-size:20px !important;font-weight:600;color:var(--deep);margin-bottom:8px;margin-top:6px;}\n .ro-wrap .stage-tag{display:block;font-size:12px !important;font-weight:700;letter-spacing:.04em;text-transform:uppercase;background:var(--slate);color:var(--ocean);padding:3px 8px;border-radius:4px;margin-bottom:8px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;max-width:100%;line-height:1.5 !important;box-sizing:border-box;}\n .ro-wrap .stage-body p{font-size:18px !important;color:var(--muted);line-height:1.6;margin:0;display:block;}\n .ro-wrap .stage-body .stage-part{font-size:15px !important;color:var(--sky);margin-top:6px;font-weight:500;}\n .ro-wrap .specs-table{width:100%;border-collapse:collapse;font-size:18px !important;}\n .ro-wrap .specs-table tr{border-bottom:1px solid var(--slate);}\n .ro-wrap .specs-table tr:last-child{border-bottom:none;}\n .ro-wrap .specs-table td{padding:11px 6px;vertical-align:top;}\n .ro-wrap .specs-table td:first-child{font-weight:500;color:var(--deep);width:44%;padding-right:16px;}\n .ro-wrap .specs-table td:last-child{color:var(--muted);}\n .ro-wrap .specs-table tr:hover td{background:var(--offwhite);}\n .ro-wrap .conditions-table{width:100%;border-collapse:collapse;font-size:18px !important;margin-top:4px;}\n .ro-wrap .conditions-table th{background:var(--deep);color:var(--white);font-size:15px !important;font-weight:600;letter-spacing:.06em;text-transform:uppercase;padding:10px 12px;text-align:left;}\n .ro-wrap .conditions-table th:first-child{border-radius:var(--radius) 0 0 0;}\n .ro-wrap .conditions-table th:last-child{border-radius:0 var(--radius) 0 0;}\n .ro-wrap .conditions-table td{padding:10px 12px;border-bottom:1px solid var(--slate);color:var(--text);}\n .ro-wrap .conditions-table tr:nth-child(even) td{background:var(--offwhite);}\n .ro-wrap .ro-feature-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(min(220px,100%),1fr));gap:16px;margin-top:4px;}\n .ro-wrap .ro-feature-card{background:var(--offwhite);border:1px solid var(--slate);border-radius:var(--radius);padding:20px 18px;}\n .ro-wrap .ro-feat-icon{width:40px;height:40px;background:linear-gradient(135deg,var(--ocean),var(--sky));border-radius:10px;display:flex;align-items:center;justify-content:center;margin-bottom:12px;}\n .ro-wrap .ro-feature-card h3{font-size:20px !important;font-weight:600;color:var(--deep);margin-bottom:6px;}\n .ro-wrap .ro-feature-card p{font-size:18px !important;color:var(--muted);line-height:1.55;margin:0;}\n .ro-wrap .pro-tip{display:block;background:#fffbeb;border:1px solid #f5d87a;border-radius:var(--radius);padding:18px 20px;margin-top:20px;box-sizing:border-box;width:100% !important;}\n .ro-wrap .pro-tip-icon{font-size:22px !important;display:inline;margin-right:8px;line-height:1.6 !important;}\n .ro-wrap .pro-tip p{font-size:18px !important;color:#5a4500;line-height:1.6 !important;margin:0;display:block;width:100%;}\n .ro-wrap .pro-tip strong{color:#3d2e00;}\n .ro-wrap .install-steps{counter-reset:step;list-style:none;padding:0;margin:4px 0 0;display:flex;flex-direction:column;gap:14px;}\n .ro-wrap .install-steps li{counter-increment:step;display:flex;align-items:flex-start;gap:14px;font-size:18px !important;color:var(--text);}\n .ro-wrap .install-steps li::before{content:counter(step);display:flex;align-items:center;justify-content:center;width:28px;height:28px;border-radius:50%;background:var(--ocean);color:white;font-size:15px !important;font-weight:700;flex-shrink:0;margin-top:1px;}\n .ro-wrap .filter-schedule{display:grid;grid-template-columns:repeat(auto-fill,minmax(min(180px,100%),1fr));gap:12px;margin-top:4px;}\n .ro-wrap .schedule-card{background:var(--offwhite);border:1px solid var(--slate);border-radius:var(--radius);padding:16px;}\n .ro-wrap .schedule-card .interval{font-size:22px !important;font-family:'DM Serif Display',serif;color:var(--sky);font-weight:400;margin-bottom:4px;}\n .ro-wrap .schedule-card h4{font-size:18px !important;font-weight:600;color:var(--deep);margin-bottom:4px;}\n .ro-wrap .schedule-card p{font-size:15px !important;color:var(--muted);margin:0;line-height:1.45;}\n .ro-wrap .benefits-strip{display:flex;flex-wrap:wrap;background:var(--deep);color:var(--white);border-radius:0 0 var(--radius) var(--radius);overflow:hidden;}\n .ro-wrap .benefit-item{flex:1 1 200px;padding:24px 22px;border-right:1px solid rgba(255,255,255,.1);}\n .ro-wrap .benefit-item:last-child{border-right:none;}\n .ro-wrap .bi-icon{font-size:22px !important;margin-bottom:10px;}\n .ro-wrap .benefit-item h4{font-size:15px !important;font-weight:600;color:var(--aqua);margin-bottom:5px;text-transform:uppercase;letter-spacing:.05em;}\n .ro-wrap .benefit-item p{font-size:15px !important;color:rgba(255,255,255,.65);line-height:1.55;margin:0;}\n .ro-wrap .faucet-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(min(200px,100%),1fr));gap:16px;margin-top:4px;}\n .ro-wrap .faucet-card{border:2px solid var(--slate);border-radius:var(--radius);padding:18px;text-align:center;}\n .ro-wrap .faucet-icon{font-size:28px !important;margin-bottom:10px;}\n .ro-wrap .faucet-card h4{font-size:18px !important;font-weight:600;color:var(--deep);margin-bottom:6px;}\n .ro-wrap .faucet-card p{font-size:15px !important;color:var(--muted);line-height:1.5;margin:0;}\n .ro-wrap .spec-cards{display:grid;grid-template-columns:repeat(auto-fill,minmax(min(180px,100%),1fr));gap:12px;margin-top:4px;}\n .ro-wrap .spec-card{background:var(--offwhite);border:1px solid var(--slate);border-radius:var(--radius);padding:16px;}\n .ro-wrap .spec-card .sc-label{font-size:13px !important;font-weight:700;letter-spacing:.08em;color:var(--sky);text-transform:uppercase;margin-bottom:4px;}\n .ro-wrap .spec-card .sc-value{font-size:20px !important;font-weight:600;color:var(--deep);margin-bottom:4px;}\n .ro-wrap .spec-card .sc-note{font-size:15px !important;color:var(--muted);}\n @media(max-width:640px){\n .ro-wrap .ro-hero{padding:36px 24px 32px;}\n .ro-wrap .ro-section{padding:28px 20px;}\n .ro-wrap .ro-feature-grid,.ro-wrap .faucet-grid,.ro-wrap .filter-schedule,.ro-wrap .spec-cards{grid-template-columns:1fr;}\n .ro-wrap .benefits-strip{flex-direction:column;}\n .ro-wrap .benefit-item{border-right:none;border-bottom:1px solid rgba(255,255,255,.1);}\n }\n \/* ── Nuclear override — force all text inside ro-wrap to be readable ── *\/\n .ro-wrap p,\n .ro-wrap li,\n .ro-wrap td,\n .ro-wrap th,\n .ro-wrap .ro-section \u003e p {\n font-size: 18px !important;\n line-height: 1.6 !important;\n }\n .ro-wrap .ro-section \u003e p,\n .ro-wrap .ro-callout p,\n .ro-wrap .stage-body p,\n .ro-wrap .ro-feature-card p,\n .ro-wrap .schedule-card p,\n .ro-wrap .faucet-card p,\n .ro-wrap .spec-card .sc-note,\n .ro-wrap .pro-tip p {\n font-size: 18px !important;\n line-height: 1.6 !important;\n }\n .ro-wrap h2 { font-size: clamp(26px,4vw,40px) !important; line-height:1.15 !important; }\n .ro-wrap h3 { font-size: 20px !important; line-height:1.3 !important; }\n .ro-wrap h4 { font-size: 18px !important; line-height:1.3 !important; }\n .ro-wrap .ro-label,\n .ro-wrap .stage-tag,\n .ro-wrap .sc-label { font-size: 14px !important; }\n .ro-wrap .ro-title { font-size: 24px !important; }\n .ro-wrap .interval { font-size: 22px !important; }\n .ro-wrap .stage-num { font-size: 16px !important; }\n .ro-wrap .ro-eyebrow { font-size: 14px !important; }\n .ro-wrap .ro-badge { font-size: 15px !important; }\n\u003c\/style\u003e\n\u003cdiv class=\"ro-wrap\"\u003e\n \u003cdiv class=\"ro-hero\"\u003e\n \u003cdiv class=\"ro-eyebrow\"\u003eWatts Premium RO Maintenance\u003c\/div\u003e\n \u003ch2\u003eWatts \u003cem\u003eWQC4RO13-100 Kwik-Change RO Replacement Filter Annual Bundle\u003c\/em\u003e With Membrane\u003c\/h2\u003e\n \u003cp class=\"ro-tagline\"\u003eComplete annual filter set for Watts Kwik-Change reverse osmosis systems. Six cartridges with 100 GPD membrane—everything you need for a full year of pure water.\u003c\/p\u003e\n \u003cdiv class=\"ro-badges\"\u003e\n \u003cspan class=\"ro-badge\"\u003eKwik-Change Technology\u003c\/span\u003e\n \u003cspan class=\"ro-badge\"\u003e100 GPD Membrane\u003c\/span\u003e\n \u003cspan class=\"ro-badge\"\u003eAnnual Supply\u003c\/span\u003e\n \u003c\/div\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"ro-section\"\u003e\n \u003cdiv class=\"ro-label\"\u003eWHAT'S INCLUDED\u003c\/div\u003e\n \u003ch3 class=\"ro-title\"\u003eSix cartridges for complete system replacement\u003c\/h3\u003e\n \u003cdiv class=\"stage-pipeline\"\u003e\n \u003cdiv class=\"stage-card\"\u003e\n \u003cdiv class=\"stage-tag\"\u003eSEDIMENT\u003c\/div\u003e\n \u003ch4\u003eWQCSC13 (×2)\u003c\/h4\u003e\n \u003cp\u003e5 micron nominal sediment filters remove dirt, rust, and particulates\u003c\/p\u003e\n \u003c\/div\u003e\n \u003cdiv class=\"stage-card\"\u003e\n \u003cdiv class=\"stage-tag\"\u003eCARBON\u003c\/div\u003e\n \u003ch4\u003eWQCCC13 (×2)\u003c\/h4\u003e\n \u003cp\u003e10 micron carbon block cartridges remove chlorine, taste, and odor\u003c\/p\u003e\n \u003c\/div\u003e\n \u003cdiv class=\"stage-card\"\u003e\n \u003cdiv class=\"stage-tag\"\u003eMEMBRANE\u003c\/div\u003e\n \u003ch4\u003eWQCM13-100 (×1)\u003c\/h4\u003e\n \u003cp\u003e100 GPD reverse osmosis membrane for contaminant removal\u003c\/p\u003e\n \u003c\/div\u003e\n \u003cdiv class=\"stage-card\"\u003e\n \u003cdiv class=\"stage-tag\"\u003ePOLISH\u003c\/div\u003e\n \u003ch4\u003eWQCGAC13 (×1)\u003c\/h4\u003e\n \u003cp\u003e10 micron GAC post-filter for final taste and odor reduction\u003c\/p\u003e\n \u003c\/div\u003e\n \u003c\/div\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"ro-section\"\u003e\n \u003cdiv class=\"ro-label\"\u003eWHY IT WORKS\u003c\/div\u003e\n \u003ch3 class=\"ro-title\"\u003eKwik-Change design eliminates the mess\u003c\/h3\u003e\n \u003cdiv class=\"ro-feature-grid\"\u003e\n \u003cdiv class=\"ro-feature-card\"\u003e\n \u003cdiv class=\"ro-feat-icon\"\u003e\u003cspan\u003e🔄\u003c\/span\u003e\u003c\/div\u003e\n \u003ch3\u003eQuarter-Turn Replacement\u003c\/h3\u003e\n \u003cp\u003eKwik-Change cartridges connect and disconnect with a simple 1\/4 turn. No tools, no wrestling with housing wrenches.\u003c\/p\u003e\n \u003c\/div\u003e\n \u003cdiv class=\"ro-feature-card\"\u003e\n \u003cdiv class=\"ro-feat-icon\"\u003e\u003cspan\u003e💧\u003c\/span\u003e\u003c\/div\u003e\n \u003ch3\u003eNo-Leak Double O-Rings\u003c\/h3\u003e\n \u003cp\u003eDual O-ring seals on every cartridge prevent leaks during installation and operation.\u003c\/p\u003e\n \u003c\/div\u003e\n \u003cdiv class=\"ro-feature-card\"\u003e\n \u003cdiv class=\"ro-feat-icon\"\u003e\u003cspan\u003e🛡️\u003c\/span\u003e\u003c\/div\u003e\n \u003ch3\u003eInternal Shutoff Valves\u003c\/h3\u003e\n \u003cp\u003eFlow stops automatically when cartridges are removed—no need to shut off the system first.\u003c\/p\u003e\n \u003c\/div\u003e\n \u003cdiv class=\"ro-feature-card\"\u003e\n \u003cdiv class=\"ro-feat-icon\"\u003e\u003cspan\u003e📏\u003c\/span\u003e\u003c\/div\u003e\n \u003ch3\u003e13-Inch Standard Size\u003c\/h3\u003e\n \u003cp\u003eFull-size 13\" cartridges provide maximum capacity and extended life between changes.\u003c\/p\u003e\n \u003c\/div\u003e\n \u003c\/div\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"ro-section\"\u003e\n \u003cdiv class=\"ro-label\"\u003eCOMPATIBILITY\u003c\/div\u003e\n \u003ch3 class=\"ro-title\"\u003eDesigned for Watts Kwik-Change systems\u003c\/h3\u003e\n \u003cp\u003eThis bundle fits all Watts WQC4RO reverse osmosis systems with 13-inch Kwik-Change housings. Cartridges include model numbers WQCSC13, WQCCC13, WQCM13-100, and WQCGAC13. Verify your system uses Kwik-Change style cartridges before ordering.\u003c\/p\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"ro-section\"\u003e\n \u003cdiv class=\"ro-label\"\u003eMAINTENANCE\u003c\/div\u003e\n \u003ch3 class=\"ro-title\"\u003eAnnual replacement schedule\u003c\/h3\u003e\n \u003cdiv class=\"filter-schedule\"\u003e\n \u003cdiv class=\"schedule-card\"\u003e\n \u003cdiv class=\"interval\"\u003eEvery 6 Months\u003c\/div\u003e\n \u003ch4\u003ePre-Filters \u0026amp; Post-Filter\u003c\/h4\u003e\n \u003cp\u003eReplace WQCSC13 sediment, WQCCC13 carbon block, and WQCGAC13 GAC cartridges twice per year. This bundle includes two sets of pre-filters for a full year.\u003c\/p\u003e\n \u003c\/div\u003e\n \u003cdiv class=\"schedule-card\"\u003e\n \u003cdiv class=\"interval\"\u003eEvery 12 Months\u003c\/div\u003e\n \u003ch4\u003eRO Membrane\u003c\/h4\u003e\n \u003cp\u003eReplace WQCM13-100 membrane annually. One membrane included in this bundle provides 100 gallons per day of purified water.\u003c\/p\u003e\n \u003c\/div\u003e\n \u003c\/div\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"benefits-strip\"\u003e\n \u003cdiv class=\"benefit-item\"\u003e\n \u003cdiv class=\"bi-icon\"\u003e🔧\u003c\/div\u003e\n \u003ch4\u003eTool-Free Changes\u003c\/h4\u003e\n \u003cp\u003eReplace all filters in under five minutes without wrenches or spills\u003c\/p\u003e\n \u003c\/div\u003e\n \u003cdiv class=\"benefit-item\"\u003e\n \u003cdiv class=\"bi-icon\"\u003e📦\u003c\/div\u003e\n \u003ch4\u003eComplete Annual Kit\u003c\/h4\u003e\n \u003cp\u003eEverything you need for a full year of maintenance in one package\u003c\/p\u003e\n \u003c\/div\u003e\n \u003cdiv class=\"benefit-item\"\u003e\n \u003cdiv class=\"bi-icon\"\u003e✓\u003c\/div\u003e\n \u003ch4\u003eGenuine Watts Cartridges\u003c\/h4\u003e\n \u003cp\u003eOEM quality ensures proper fit and filtration performance\u003c\/p\u003e\n \u003c\/div\u003e\n \u003c\/div\u003e\n\u003c\/div\u003e","brand":"Isopure Water","offers":[{"title":"Default Title","offer_id":42746995409067,"sku":"BIRDS 13\" - (2)R (2)Y (1)B (1)G","price":294.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0446\/7677\/6098\/files\/product-7666327912619-padded.jpg?v=1791927972"},{"product_id":"watts-premier-ro-pure-replacement-filter-10-pack-plus-membrane","title":"Watts Premier Ro Pure Replacement Filter 10-pack Plus Membrane","description":"\n\u003clink href=\"https:\/\/fonts.googleapis.com\/css2?family=DM+Serif+Display:ital@0;1\u0026amp;family=DM+Sans:wght@300;400;500;600\u0026amp;display=swap\" rel=\"stylesheet\"\u003e\n\u003cstyle\u003e\n .ro-wrap {\n --deep:#0a1628;--ocean:#0f3460;--blue:#1565c0;--sky:#2196f3;--aqua:#4dd0e1;\n --white:#ffffff;--offwhite:#f2f7fc;--slate:#dce8f5;--text:#0d1f38;--muted:#4a6280;\n --gold:#f59e0b;--radius:12px;\n font-family:'DM Sans',sans-serif;color:var(--text);line-height:1.6;-webkit-font-smoothing:antialiased;overflow-wrap:break-word;word-break:break-word;min-width:0;\n }\n .ro-wrap .ro-hero{background:linear-gradient(135deg,var(--deep) 0%,var(--ocean) 50%,#1a5276 100%);color:var(--white);padding:52px 40px 44px;position:relative;overflow:hidden;border-radius:var(--radius) var(--radius) 0 0;}\n .ro-wrap .ro-hero::before{content:'';position:absolute;inset:0;background:radial-gradient(ellipse 70% 55% at 95% 45%,rgba(77,208,225,.15) 0%,transparent 65%),radial-gradient(ellipse 40% 40% at 5% 80%,rgba(255,255,255,.05) 0%,transparent 60%);pointer-events:none;}\n .ro-wrap .ro-eyebrow{font-size:13px !important;font-weight:600;letter-spacing:.18em;text-transform:uppercase;color:var(--aqua);margin-bottom:12px;}\n .ro-wrap .ro-hero h2{font-family:'DM Serif Display',serif;font-size:clamp(26px,4vw,40px) !important;line-height:1.15;font-weight:400;margin-bottom:16px;color:var(--white);}\n .ro-wrap .ro-hero h2 em{font-style:italic;color:var(--aqua);}\n .ro-wrap .ro-tagline{font-size:18px !important;color:rgba(255,255,255,.75);font-weight:300;margin-bottom:28px;}\n .ro-wrap .ro-badges{display:flex;flex-wrap:wrap;gap:10px;}\n .ro-wrap .ro-badge{display:inline-flex;align-items:center;gap:6px;background:rgba(255,255,255,.12);border:1px solid rgba(255,255,255,.2);color:var(--white);font-size:15px !important;font-weight:500;padding:6px 14px;border-radius:40px;backdrop-filter:blur(6px);}\n .ro-wrap .ro-callout{background:var(--offwhite);border-left:4px solid var(--sky);padding:20px 24px;}\n .ro-wrap .ro-callout p{font-size:18px !important;color:var(--text);line-height:1.7;margin:0;}\n .ro-wrap .ro-callout strong{color:var(--ocean);}\n .ro-wrap .ro-section{padding:36px 40px;border-bottom:1px solid var(--slate);}\n .ro-wrap .ro-label{font-size:13px !important;font-weight:700;letter-spacing:.2em;text-transform:uppercase;color:var(--sky);margin-bottom:8px;}\n .ro-wrap .ro-title{font-family:'DM Serif 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!important;font-weight:600;color:var(--deep);margin-bottom:4px;}\n .ro-wrap .spec-card .sc-note{font-size:15px !important;color:var(--muted);}\n @media(max-width:640px){\n .ro-wrap .ro-hero{padding:36px 24px 32px;}\n .ro-wrap .ro-section{padding:28px 20px;}\n .ro-wrap .ro-feature-grid,.ro-wrap .faucet-grid,.ro-wrap .filter-schedule,.ro-wrap .spec-cards{grid-template-columns:1fr;}\n .ro-wrap .benefits-strip{flex-direction:column;}\n .ro-wrap .benefit-item{border-right:none;border-bottom:1px solid rgba(255,255,255,.1);}\n }\n \/* ── Nuclear override — force all text inside ro-wrap to be readable ── *\/\n .ro-wrap p,\n .ro-wrap li,\n .ro-wrap td,\n .ro-wrap th,\n .ro-wrap .ro-section \u003e p {\n font-size: 18px !important;\n line-height: 1.6 !important;\n }\n .ro-wrap .ro-section \u003e p,\n .ro-wrap .ro-callout p,\n .ro-wrap .stage-body p,\n .ro-wrap .ro-feature-card p,\n .ro-wrap .schedule-card p,\n .ro-wrap .faucet-card p,\n .ro-wrap .spec-card .sc-note,\n .ro-wrap .pro-tip p {\n font-size: 18px !important;\n line-height: 1.6 !important;\n }\n .ro-wrap h2 { font-size: clamp(26px,4vw,40px) !important; line-height:1.15 !important; }\n .ro-wrap h3 { font-size: 20px !important; line-height:1.3 !important; }\n .ro-wrap h4 { font-size: 18px !important; line-height:1.3 !important; }\n .ro-wrap .ro-label,\n .ro-wrap .stage-tag,\n .ro-wrap .sc-label { font-size: 14px !important; }\n .ro-wrap .ro-title { font-size: 24px !important; }\n .ro-wrap .interval { font-size: 22px !important; }\n .ro-wrap .stage-num { font-size: 16px !important; }\n .ro-wrap .ro-eyebrow { font-size: 14px !important; }\n .ro-wrap .ro-badge { font-size: 15px !important; }\n\u003c\/style\u003e\n\u003cdiv class=\"ro-wrap\"\u003e\n\n\u003cdiv class=\"ro-callout\"\u003e\nThis complete Watts Premier RO Pure replacement filter kit includes a 50 GPD membrane and ten complementary filters to fully service your reverse osmosis system for extended performance. The 10-pack bundle delivers multi-stage filtration with sediment prefilters, carbon block stages, polishing filters, and a high-rejection membrane for comprehensive water purification.\n\u003c\/div\u003e\n\n\u003cdiv class=\"ro-section\"\u003e\n\u003cdiv class=\"ro-label\"\u003eSPECIFICATIONS\u003c\/div\u003e\n\u003ch2 class=\"ro-title\"\u003eWhat's Included in This Complete Filter Set\u003c\/h2\u003e\n\u003cdiv class=\"spec-cards\"\u003e\n\u003cdiv class=\"spec-card\"\u003e\n\u003cdiv class=\"sc-label\"\u003eRO Membrane\u003c\/div\u003e\n\u003cdiv class=\"sc-value\"\u003e1 Filter\u003c\/div\u003e\n\u003cdiv class=\"sc-note\"\u003e50 gallons per day rated capacity\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"spec-card\"\u003e\n\u003cdiv class=\"sc-label\"\u003eCarbon Block Filters\u003c\/div\u003e\n\u003cdiv class=\"sc-value\"\u003e4 Filters\u003c\/div\u003e\n\u003cdiv class=\"sc-note\"\u003e5-micron chlorine and taste reduction\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"spec-card\"\u003e\n\u003cdiv class=\"sc-label\"\u003ePolishing Filters\u003c\/div\u003e\n\u003cdiv class=\"sc-value\"\u003e2 Filters\u003c\/div\u003e\n\u003cdiv class=\"sc-note\"\u003eFinal stage carbon for taste enhancement\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"spec-card\"\u003e\n\u003cdiv class=\"sc-label\"\u003eSediment Filters\u003c\/div\u003e\n\u003cdiv class=\"sc-value\"\u003e4 Filters\u003c\/div\u003e\n\u003cdiv class=\"sc-note\"\u003e5-micron particulate removal\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"spec-card\"\u003e\n\u003cdiv class=\"sc-label\"\u003eTotal Filter Count\u003c\/div\u003e\n\u003cdiv class=\"sc-value\"\u003e11 Pieces\u003c\/div\u003e\n\u003cdiv class=\"sc-note\"\u003eComplete system service kit\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"spec-card\"\u003e\n\u003cdiv class=\"sc-label\"\u003eBrand\u003c\/div\u003e\n\u003cdiv class=\"sc-value\"\u003eWatts Premier\u003c\/div\u003e\n\u003cdiv class=\"sc-note\"\u003eOEM quality replacement components\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"ro-section\"\u003e\n\u003cdiv class=\"ro-label\"\u003eTECHNICAL DETAILS\u003c\/div\u003e\n\u003ch2 class=\"ro-title\"\u003eFilter Performance \u0026amp; Specifications\u003c\/h2\u003e\n\u003ctable class=\"specs-table\"\u003e\n\u003ctr\u003e\n\u003ctd\u003eMembrane Type\u003c\/td\u003e\n\u003ctd\u003eThin Film Composite (TFC) RO membrane, 50 gallons per day rated output\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSediment Filtration\u003c\/td\u003e\n\u003ctd\u003e5-micron nominal rating, removes dirt, sand, silt, rust, and suspended particles\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCarbon Block Stage\u003c\/td\u003e\n\u003ctd\u003e5-micron carbon block filters reduce chlorine, taste, odor, and organic contaminants\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePolishing Stage\u003c\/td\u003e\n\u003ctd\u003eFinal inline carbon filters for taste enhancement and residual contaminant reduction\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFilter Dimensions\u003c\/td\u003e\n\u003ctd\u003eStandard 10-inch cartridge length for most Watts Premier RO systems\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eReplacement Cycle\u003c\/td\u003e\n\u003ctd\u003ePrefilters and carbon typically 6-12 months, membrane 24-36 months depending on water quality\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePackage Contents\u003c\/td\u003e\n\u003ctd\u003e1 RO membrane, 4 carbon block filters, 2 polishing filters, 4 sediment filters\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"ro-section\"\u003e\n\u003cdiv class=\"ro-label\"\u003eCOMPATIBILITY \u0026amp; APPLICATIONS\u003c\/div\u003e\n\u003ch2 class=\"ro-title\"\u003eDesigned for Watts Premier RO Systems\u003c\/h2\u003e\n\u003cp\u003eThis comprehensive replacement set is engineered for compatibility with Watts Premier reverse osmosis filtration systems that utilize standard 10-inch filter housings and 50 GPD membranes. The kit provides all the filters needed to perform complete system maintenance, covering sediment pretreatment, carbon adsorption stages, membrane separation, and final polishing. Ideal for homeowners looking to purchase filters in bulk for extended service intervals, this 10-pack bundle ensures you have genuine Watts Premier components on hand for multiple filter changes. Verify your system's filter configuration and housing sizes before ordering to ensure proper fit and performance.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"pro-tip\"\u003e\n💧 Replacing all prefilters and carbon stages at the same time as your membrane maximizes the life of your new RO membrane and ensures optimal contaminant rejection across all filtration stages.\n\u003c\/div\u003e\n\n\u003c\/div\u003e","brand":"Isopure Water","offers":[{"title":"Default Title","offer_id":43173297881259,"sku":"II-Y8DU-X8I4","price":350.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0446\/7677\/6098\/files\/product-7803427520683-padded.jpg?v=1777271397"},{"product_id":"watts-1r-1y-1b-1g-kwik-change-wqc4ro13-100-replacement-filter-kit-for-13-100-gpd-system-not-for-premier","title":"Watts 1R-1Y-1B-1G Kwik-Change WQC4RO13-100 Replacement Filter Kit for 13\" 100 GPD System - Not for Premier","description":"\n\u003clink 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!important;box-sizing:border-box;}\n .ro-wrap .stage-body p{font-size:18px !important;color:var(--muted);line-height:1.6;margin:0;display:block;}\n .ro-wrap .stage-body .stage-part{font-size:15px !important;color:var(--sky);margin-top:6px;font-weight:500;}\n .ro-wrap .specs-table{width:100%;border-collapse:collapse;font-size:18px !important;}\n .ro-wrap .specs-table tr{border-bottom:1px solid var(--slate);}\n .ro-wrap .specs-table tr:last-child{border-bottom:none;}\n .ro-wrap .specs-table td{padding:11px 6px;vertical-align:top;}\n .ro-wrap .specs-table td:first-child{font-weight:500;color:var(--deep);width:44%;padding-right:16px;}\n .ro-wrap .specs-table td:last-child{color:var(--muted);}\n .ro-wrap .specs-table tr:hover td{background:var(--offwhite);}\n .ro-wrap .conditions-table{width:100%;border-collapse:collapse;font-size:18px !important;margin-top:4px;}\n .ro-wrap .conditions-table th{background:var(--deep);color:var(--white);font-size:15px !important;font-weight:600;letter-spacing:.06em;text-transform:uppercase;padding:10px 12px;text-align:left;}\n .ro-wrap .conditions-table th:first-child{border-radius:var(--radius) 0 0 0;}\n .ro-wrap .conditions-table th:last-child{border-radius:0 var(--radius) 0 0;}\n .ro-wrap .conditions-table td{padding:10px 12px;border-bottom:1px solid var(--slate);color:var(--text);}\n .ro-wrap .conditions-table tr:nth-child(even) td{background:var(--offwhite);}\n .ro-wrap .ro-feature-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(min(220px,100%),1fr));gap:16px;margin-top:4px;}\n .ro-wrap .ro-feature-card{background:var(--offwhite);border:1px solid var(--slate);border-radius:var(--radius);padding:20px 18px;}\n .ro-wrap .ro-feat-icon{width:40px;height:40px;background:linear-gradient(135deg,var(--ocean),var(--sky));border-radius:10px;display:flex;align-items:center;justify-content:center;margin-bottom:12px;}\n .ro-wrap .ro-feature-card h3{font-size:20px !important;font-weight:600;color:var(--deep);margin-bottom:6px;}\n .ro-wrap .ro-feature-card p{font-size:18px !important;color:var(--muted);line-height:1.55;margin:0;}\n .ro-wrap .pro-tip{display:block;background:#fffbeb;border:1px solid #f5d87a;border-radius:var(--radius);padding:18px 20px;margin-top:20px;box-sizing:border-box;width:100% !important;}\n .ro-wrap .pro-tip-icon{font-size:22px !important;display:inline;margin-right:8px;line-height:1.6 !important;}\n .ro-wrap .pro-tip p{font-size:18px !important;color:#5a4500;line-height:1.6 !important;margin:0;display:block;width:100%;}\n .ro-wrap .pro-tip strong{color:#3d2e00;}\n .ro-wrap .install-steps{counter-reset:step;list-style:none;padding:0;margin:4px 0 0;display:flex;flex-direction:column;gap:14px;}\n .ro-wrap .install-steps li{counter-increment:step;display:flex;align-items:flex-start;gap:14px;font-size:18px !important;color:var(--text);}\n .ro-wrap .install-steps li::before{content:counter(step);display:flex;align-items:center;justify-content:center;width:28px;height:28px;border-radius:50%;background:var(--ocean);color:white;font-size:15px !important;font-weight:700;flex-shrink:0;margin-top:1px;}\n .ro-wrap .filter-schedule{display:grid;grid-template-columns:repeat(auto-fill,minmax(min(180px,100%),1fr));gap:12px;margin-top:4px;}\n .ro-wrap .schedule-card{background:var(--offwhite);border:1px solid var(--slate);border-radius:var(--radius);padding:16px;}\n .ro-wrap .schedule-card .interval{font-size:22px !important;font-family:'DM Serif Display',serif;color:var(--sky);font-weight:400;margin-bottom:4px;}\n .ro-wrap .schedule-card h4{font-size:18px !important;font-weight:600;color:var(--deep);margin-bottom:4px;}\n .ro-wrap .schedule-card p{font-size:15px !important;color:var(--muted);margin:0;line-height:1.45;}\n .ro-wrap .benefits-strip{display:flex;flex-wrap:wrap;background:var(--deep);color:var(--white);border-radius:0 0 var(--radius) var(--radius);overflow:hidden;}\n .ro-wrap .benefit-item{flex:1 1 200px;padding:24px 22px;border-right:1px solid rgba(255,255,255,.1);}\n .ro-wrap .benefit-item:last-child{border-right:none;}\n .ro-wrap .bi-icon{font-size:22px !important;margin-bottom:10px;}\n .ro-wrap .benefit-item h4{font-size:15px !important;font-weight:600;color:var(--aqua);margin-bottom:5px;text-transform:uppercase;letter-spacing:.05em;}\n .ro-wrap .benefit-item p{font-size:15px !important;color:rgba(255,255,255,.65);line-height:1.55;margin:0;}\n .ro-wrap .faucet-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(min(200px,100%),1fr));gap:16px;margin-top:4px;}\n .ro-wrap .faucet-card{border:2px solid var(--slate);border-radius:var(--radius);padding:18px;text-align:center;}\n .ro-wrap .faucet-icon{font-size:28px !important;margin-bottom:10px;}\n .ro-wrap .faucet-card h4{font-size:18px !important;font-weight:600;color:var(--deep);margin-bottom:6px;}\n .ro-wrap .faucet-card p{font-size:15px !important;color:var(--muted);line-height:1.5;margin:0;}\n .ro-wrap .spec-cards{display:grid;grid-template-columns:repeat(auto-fill,minmax(min(180px,100%),1fr));gap:12px;margin-top:4px;}\n .ro-wrap .spec-card{background:var(--offwhite);border:1px solid var(--slate);border-radius:var(--radius);padding:16px;}\n .ro-wrap .spec-card .sc-label{font-size:13px !important;font-weight:700;letter-spacing:.08em;color:var(--sky);text-transform:uppercase;margin-bottom:4px;}\n .ro-wrap .spec-card .sc-value{font-size:20px !important;font-weight:600;color:var(--deep);margin-bottom:4px;}\n .ro-wrap .spec-card .sc-note{font-size:15px !important;color:var(--muted);}\n @media(max-width:640px){\n .ro-wrap .ro-hero{padding:36px 24px 32px;}\n .ro-wrap .ro-section{padding:28px 20px;}\n .ro-wrap .ro-feature-grid,.ro-wrap .faucet-grid,.ro-wrap .filter-schedule,.ro-wrap .spec-cards{grid-template-columns:1fr;}\n .ro-wrap .benefits-strip{flex-direction:column;}\n .ro-wrap .benefit-item{border-right:none;border-bottom:1px solid rgba(255,255,255,.1);}\n }\n \/* ── Nuclear override — force all text inside ro-wrap to be readable ── *\/\n .ro-wrap p,\n .ro-wrap li,\n .ro-wrap td,\n .ro-wrap th,\n .ro-wrap .ro-section \u003e p {\n font-size: 18px !important;\n line-height: 1.6 !important;\n }\n .ro-wrap .ro-section \u003e p,\n .ro-wrap .ro-callout p,\n .ro-wrap .stage-body p,\n .ro-wrap .ro-feature-card p,\n .ro-wrap .schedule-card p,\n .ro-wrap .faucet-card p,\n .ro-wrap .spec-card .sc-note,\n .ro-wrap .pro-tip p {\n font-size: 18px !important;\n line-height: 1.6 !important;\n }\n .ro-wrap h2 { font-size: clamp(26px,4vw,40px) !important; line-height:1.15 !important; }\n .ro-wrap h3 { font-size: 20px !important; line-height:1.3 !important; }\n .ro-wrap h4 { font-size: 18px !important; line-height:1.3 !important; }\n .ro-wrap .ro-label,\n .ro-wrap .stage-tag,\n .ro-wrap .sc-label { font-size: 14px !important; }\n .ro-wrap .ro-title { font-size: 24px !important; }\n .ro-wrap .interval { font-size: 22px !important; }\n .ro-wrap .stage-num { font-size: 16px !important; }\n .ro-wrap .ro-eyebrow { font-size: 14px !important; }\n .ro-wrap .ro-badge { font-size: 15px !important; }\n\u003c\/style\u003e\n\u003cdiv class=\"ro-wrap\"\u003e\n\n\u003cdiv class=\"ro-callout\"\u003e\nThe Watts WQC4RO13-100 Kwik-Change replacement filter kit delivers a complete four-stage filtration solution for your 13-inch 100 GPD reverse osmosis system. Engineered with double o-ring seals and internal shutoff valves, this kit eliminates leaks and simplifies cartridge replacement across all filtration stages.\n\u003c\/div\u003e\n\n\u003cdiv class=\"ro-section\"\u003e\n\u003cdiv class=\"ro-label\"\u003eSPECIFICATIONS\u003c\/div\u003e\n\u003ch2 class=\"ro-title\"\u003eComplete Kit Components\u003c\/h2\u003e\n\u003ctable class=\"specs-table\"\u003e\n\u003ctr\u003e\n\u003ctd\u003eModel Number\u003c\/td\u003e\n\u003ctd\u003eWatts WQC4RO13-100\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSystem Compatibility\u003c\/td\u003e\n\u003ctd\u003e13-inch 100 GPD Kwik-Change (Not Premier)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eStage 1 (WQCSC13)\u003c\/td\u003e\n\u003ctd\u003e5 micron sediment filter, removes dirt, rust, sediment\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eStage 2 (WQCCC13)\u003c\/td\u003e\n\u003ctd\u003e10 micron carbon block, removes chlorine, taste, odor\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eStage 3 (WQCM13-100)\u003c\/td\u003e\n\u003ctd\u003e100 GPD reverse osmosis membrane\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eStage 4 (WQCGAC13)\u003c\/td\u003e\n\u003ctd\u003e10 micron GAC post-filter, polishes taste and odor\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSeal Design\u003c\/td\u003e\n\u003ctd\u003eDouble o-rings with internal shutoff valves\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eReplacement Interval\u003c\/td\u003e\n\u003ctd\u003eEvery 6 months (sediment, carbon); membrane as needed\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"ro-section\"\u003e\n\u003cdiv class=\"ro-label\"\u003eINSTALLATION \u0026amp; USE\u003c\/div\u003e\n\u003ch2 class=\"ro-title\"\u003eFilter Replacement Procedure\u003c\/h2\u003e\n\u003col class=\"install-steps\"\u003e\n\u003cli\u003eShut off water supply to the RO system and open faucet to relieve pressure\u003c\/li\u003e\n\u003cli\u003eTwist and remove old cartridges counterclockwise; internal valves automatically stop water flow\u003c\/li\u003e\n\u003cli\u003eInsert new cartridges and twist clockwise until fully seated and locked\u003c\/li\u003e\n\u003cli\u003eTurn water supply back on and flush system for 5 minutes to purge air and carbon fines\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"ro-section\"\u003e\n\u003cdiv class=\"ro-label\"\u003eCOMPATIBILITY\u003c\/div\u003e\n\u003ch2 class=\"ro-title\"\u003eSystem Requirements\u003c\/h2\u003e\n\u003cp\u003eThis Watts WQC4RO13-100 kit is designed exclusively for 13-inch Kwik-Change reverse osmosis systems rated at 100 gallons per day. It is not compatible with Watts Premier series systems or standard twist-in housings. Verify your system uses Kwik-Change cartridges with double o-ring seals before ordering.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"pro-tip\"\u003e\n🔧 \u003cstrong\u003ePro Tip:\u003c\/strong\u003e Mark your calendar when installing this kit. While carbon and sediment filters should be replaced every 6 months, the RO membrane (WQCM13-100) typically lasts 2-3 years depending on water quality. Replace only the filters that need it to save money without compromising performance.\n\u003c\/div\u003e\n\n\u003c\/div\u003e","brand":"Isopure Water","offers":[{"title":"Default Title","offer_id":43469257310379,"sku":"VQY-3N6-VAQ","price":263.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0446\/7677\/6098\/files\/product-7883723899051-padded.jpg?v=1791927972"},{"product_id":"ipw-industries-inc-watts-premier-wp4-v-filter-annual-bundle-24-gpd","title":"IPW Industries Inc Watts Premier WP4-V Filter Annual Bundle (24 GPD)","description":"\n\u003clink href=\"https:\/\/fonts.googleapis.com\/css2?family=DM+Serif+Display:ital@0;1\u0026amp;family=DM+Sans:wght@300;400;500;600\u0026amp;display=swap\" rel=\"stylesheet\"\u003e\n\u003cstyle\u003e\n .ro-wrap {\n --deep:#0a1628;--ocean:#0f3460;--blue:#1565c0;--sky:#2196f3;--aqua:#4dd0e1;\n --white:#ffffff;--offwhite:#f2f7fc;--slate:#dce8f5;--text:#0d1f38;--muted:#4a6280;\n --gold:#f59e0b;--radius:12px;\n font-family:'DM Sans',sans-serif;color:var(--text);line-height:1.6;-webkit-font-smoothing:antialiased;overflow-wrap:break-word;word-break:break-word;min-width:0;\n }\n .ro-wrap .ro-hero{background:linear-gradient(135deg,var(--deep) 0%,var(--ocean) 50%,#1a5276 100%);color:var(--white);padding:52px 40px 44px;position:relative;overflow:hidden;border-radius:var(--radius) var(--radius) 0 0;}\n .ro-wrap .ro-hero::before{content:'';position:absolute;inset:0;background:radial-gradient(ellipse 70% 55% at 95% 45%,rgba(77,208,225,.15) 0%,transparent 65%),radial-gradient(ellipse 40% 40% at 5% 80%,rgba(255,255,255,.05) 0%,transparent 60%);pointer-events:none;}\n .ro-wrap .ro-eyebrow{font-size:13px !important;font-weight:600;letter-spacing:.18em;text-transform:uppercase;color:var(--aqua);margin-bottom:12px;}\n .ro-wrap .ro-hero h2{font-family:'DM Serif Display',serif;font-size:clamp(26px,4vw,40px) !important;line-height:1.15;font-weight:400;margin-bottom:16px;color:var(--white);}\n .ro-wrap .ro-hero h2 em{font-style:italic;color:var(--aqua);}\n .ro-wrap .ro-tagline{font-size:18px !important;color:rgba(255,255,255,.75);font-weight:300;margin-bottom:28px;}\n .ro-wrap .ro-badges{display:flex;flex-wrap:wrap;gap:10px;}\n .ro-wrap .ro-badge{display:inline-flex;align-items:center;gap:6px;background:rgba(255,255,255,.12);border:1px solid rgba(255,255,255,.2);color:var(--white);font-size:15px !important;font-weight:500;padding:6px 14px;border-radius:40px;backdrop-filter:blur(6px);}\n .ro-wrap .ro-callout{background:var(--offwhite);border-left:4px solid var(--sky);padding:20px 24px;}\n .ro-wrap .ro-callout p{font-size:18px !important;color:var(--text);line-height:1.7;margin:0;}\n .ro-wrap .ro-callout strong{color:var(--ocean);}\n .ro-wrap .ro-section{padding:36px 40px;border-bottom:1px solid var(--slate);}\n .ro-wrap .ro-label{font-size:13px !important;font-weight:700;letter-spacing:.2em;text-transform:uppercase;color:var(--sky);margin-bottom:8px;}\n .ro-wrap .ro-title{font-family:'DM Serif Display',serif;font-size:24px !important;color:var(--deep);margin-bottom:20px;font-weight:400;}\n .ro-wrap .stage-pipeline{display:flex;flex-direction:column;gap:0;margin-top:4px;}\n .ro-wrap .stage-row{display:flex;flex-direction:row;gap:12px;position:relative;min-width:0;align-items:flex-start;width:100%;box-sizing:border-box;}\n .ro-wrap .stage-row:not(:last-child) .stage-line{position:absolute;left:17px;top:40px;bottom:0;width:2px;background:var(--slate);}\n .ro-wrap .stage-num{width:36px;height:36px;min-width:36px;max-width:36px;border-radius:50%;background:linear-gradient(135deg,var(--ocean),var(--sky));color:white;display:flex;align-items:center;justify-content:center;font-size:16px !important;font-weight:700;flex:0 0 36px;position:relative;z-index:1;margin-top:16px;}\n .ro-wrap .stage-body{background:var(--offwhite);border:1px solid var(--slate);border-radius:var(--radius);padding:16px 18px;margin-bottom:12px;flex:1 1 0;min-width:0;overflow:hidden;overflow-wrap:break-word;word-break:break-word;box-sizing:border-box;}\n .ro-wrap .stage-body h3{font-size:20px !important;font-weight:600;color:var(--deep);margin-bottom:8px;margin-top:6px;}\n .ro-wrap .stage-tag{display:block;font-size:12px !important;font-weight:700;letter-spacing:.04em;text-transform:uppercase;background:var(--slate);color:var(--ocean);padding:3px 8px;border-radius:4px;margin-bottom:8px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;max-width:100%;line-height:1.5 !important;box-sizing:border-box;}\n .ro-wrap .stage-body p{font-size:18px !important;color:var(--muted);line-height:1.6;margin:0;display:block;}\n .ro-wrap .stage-body .stage-part{font-size:15px !important;color:var(--sky);margin-top:6px;font-weight:500;}\n .ro-wrap .specs-table{width:100%;border-collapse:collapse;font-size:18px !important;}\n .ro-wrap .specs-table tr{border-bottom:1px solid var(--slate);}\n .ro-wrap .specs-table tr:last-child{border-bottom:none;}\n .ro-wrap .specs-table td{padding:11px 6px;vertical-align:top;}\n .ro-wrap .specs-table td:first-child{font-weight:500;color:var(--deep);width:44%;padding-right:16px;}\n .ro-wrap .specs-table td:last-child{color:var(--muted);}\n .ro-wrap .specs-table tr:hover td{background:var(--offwhite);}\n .ro-wrap .conditions-table{width:100%;border-collapse:collapse;font-size:18px !important;margin-top:4px;}\n .ro-wrap .conditions-table th{background:var(--deep);color:var(--white);font-size:15px !important;font-weight:600;letter-spacing:.06em;text-transform:uppercase;padding:10px 12px;text-align:left;}\n .ro-wrap .conditions-table th:first-child{border-radius:var(--radius) 0 0 0;}\n .ro-wrap .conditions-table th:last-child{border-radius:0 var(--radius) 0 0;}\n .ro-wrap .conditions-table td{padding:10px 12px;border-bottom:1px solid var(--slate);color:var(--text);}\n .ro-wrap .conditions-table tr:nth-child(even) td{background:var(--offwhite);}\n .ro-wrap .ro-feature-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(min(220px,100%),1fr));gap:16px;margin-top:4px;}\n .ro-wrap .ro-feature-card{background:var(--offwhite);border:1px solid var(--slate);border-radius:var(--radius);padding:20px 18px;}\n .ro-wrap .ro-feat-icon{width:40px;height:40px;background:linear-gradient(135deg,var(--ocean),var(--sky));border-radius:10px;display:flex;align-items:center;justify-content:center;margin-bottom:12px;}\n .ro-wrap .ro-feature-card h3{font-size:20px !important;font-weight:600;color:var(--deep);margin-bottom:6px;}\n .ro-wrap .ro-feature-card p{font-size:18px !important;color:var(--muted);line-height:1.55;margin:0;}\n .ro-wrap .pro-tip{display:block;background:#fffbeb;border:1px solid #f5d87a;border-radius:var(--radius);padding:18px 20px;margin-top:20px;box-sizing:border-box;width:100% !important;}\n .ro-wrap .pro-tip-icon{font-size:22px !important;display:inline;margin-right:8px;line-height:1.6 !important;}\n .ro-wrap .pro-tip p{font-size:18px !important;color:#5a4500;line-height:1.6 !important;margin:0;display:block;width:100%;}\n .ro-wrap .pro-tip strong{color:#3d2e00;}\n .ro-wrap .install-steps{counter-reset:step;list-style:none;padding:0;margin:4px 0 0;display:flex;flex-direction:column;gap:14px;}\n .ro-wrap .install-steps li{counter-increment:step;display:flex;align-items:flex-start;gap:14px;font-size:18px !important;color:var(--text);}\n .ro-wrap .install-steps li::before{content:counter(step);display:flex;align-items:center;justify-content:center;width:28px;height:28px;border-radius:50%;background:var(--ocean);color:white;font-size:15px !important;font-weight:700;flex-shrink:0;margin-top:1px;}\n .ro-wrap .filter-schedule{display:grid;grid-template-columns:repeat(auto-fill,minmax(min(180px,100%),1fr));gap:12px;margin-top:4px;}\n .ro-wrap .schedule-card{background:var(--offwhite);border:1px solid var(--slate);border-radius:var(--radius);padding:16px;}\n .ro-wrap .schedule-card .interval{font-size:22px !important;font-family:'DM Serif Display',serif;color:var(--sky);font-weight:400;margin-bottom:4px;}\n .ro-wrap .schedule-card h4{font-size:18px !important;font-weight:600;color:var(--deep);margin-bottom:4px;}\n .ro-wrap .schedule-card p{font-size:15px !important;color:var(--muted);margin:0;line-height:1.45;}\n .ro-wrap .benefits-strip{display:flex;flex-wrap:wrap;background:var(--deep);color:var(--white);border-radius:0 0 var(--radius) var(--radius);overflow:hidden;}\n .ro-wrap .benefit-item{flex:1 1 200px;padding:24px 22px;border-right:1px solid rgba(255,255,255,.1);}\n .ro-wrap .benefit-item:last-child{border-right:none;}\n .ro-wrap .bi-icon{font-size:22px !important;margin-bottom:10px;}\n .ro-wrap .benefit-item h4{font-size:15px !important;font-weight:600;color:var(--aqua);margin-bottom:5px;text-transform:uppercase;letter-spacing:.05em;}\n .ro-wrap .benefit-item p{font-size:15px !important;color:rgba(255,255,255,.65);line-height:1.55;margin:0;}\n .ro-wrap .faucet-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(min(200px,100%),1fr));gap:16px;margin-top:4px;}\n .ro-wrap .faucet-card{border:2px solid var(--slate);border-radius:var(--radius);padding:18px;text-align:center;}\n .ro-wrap .faucet-icon{font-size:28px !important;margin-bottom:10px;}\n .ro-wrap .faucet-card h4{font-size:18px !important;font-weight:600;color:var(--deep);margin-bottom:6px;}\n .ro-wrap .faucet-card p{font-size:15px !important;color:var(--muted);line-height:1.5;margin:0;}\n .ro-wrap .spec-cards{display:grid;grid-template-columns:repeat(auto-fill,minmax(min(180px,100%),1fr));gap:12px;margin-top:4px;}\n .ro-wrap .spec-card{background:var(--offwhite);border:1px solid var(--slate);border-radius:var(--radius);padding:16px;}\n .ro-wrap .spec-card .sc-label{font-size:13px !important;font-weight:700;letter-spacing:.08em;color:var(--sky);text-transform:uppercase;margin-bottom:4px;}\n .ro-wrap .spec-card .sc-value{font-size:20px !important;font-weight:600;color:var(--deep);margin-bottom:4px;}\n .ro-wrap .spec-card .sc-note{font-size:15px !important;color:var(--muted);}\n @media(max-width:640px){\n .ro-wrap .ro-hero{padding:36px 24px 32px;}\n .ro-wrap .ro-section{padding:28px 20px;}\n .ro-wrap .ro-feature-grid,.ro-wrap .faucet-grid,.ro-wrap .filter-schedule,.ro-wrap .spec-cards{grid-template-columns:1fr;}\n .ro-wrap .benefits-strip{flex-direction:column;}\n .ro-wrap .benefit-item{border-right:none;border-bottom:1px solid rgba(255,255,255,.1);}\n }\n \/* ── Nuclear override — force all text inside ro-wrap to be readable ── *\/\n .ro-wrap p,\n .ro-wrap li,\n .ro-wrap td,\n .ro-wrap th,\n .ro-wrap .ro-section \u003e p {\n font-size: 18px !important;\n line-height: 1.6 !important;\n }\n .ro-wrap .ro-section \u003e p,\n .ro-wrap .ro-callout p,\n .ro-wrap .stage-body p,\n .ro-wrap .ro-feature-card p,\n .ro-wrap .schedule-card p,\n .ro-wrap .faucet-card p,\n .ro-wrap .spec-card .sc-note,\n .ro-wrap .pro-tip p {\n font-size: 18px !important;\n line-height: 1.6 !important;\n }\n .ro-wrap h2 { font-size: clamp(26px,4vw,40px) !important; line-height:1.15 !important; }\n .ro-wrap h3 { font-size: 20px !important; line-height:1.3 !important; }\n .ro-wrap h4 { font-size: 18px !important; line-height:1.3 !important; }\n .ro-wrap .ro-label,\n .ro-wrap .stage-tag,\n .ro-wrap .sc-label { font-size: 14px !important; }\n .ro-wrap .ro-title { font-size: 24px !important; }\n .ro-wrap .interval { font-size: 22px !important; }\n .ro-wrap .stage-num { font-size: 16px !important; }\n .ro-wrap .ro-eyebrow { font-size: 14px !important; }\n .ro-wrap .ro-badge { font-size: 15px !important; }\n\u003c\/style\u003e\n\u003cdiv class=\"ro-wrap\"\u003e\n\n\u003cdiv class=\"ro-hero\"\u003e\n\u003cdiv class=\"ro-eyebrow\"\u003eIPW Industries Inc\u003c\/div\u003e\n\u003ch2\u003eWatts Premier WP4-V Filter Annual Bundle (24 GPD)\u003c\/h2\u003e\n\u003cdiv class=\"ro-tagline\"\u003eComplete yearly filter replacement package for Watts Premier WP4-V reverse osmosis systems\u003c\/div\u003e\n\u003cdiv class=\"ro-badges\"\u003e\n\u003cspan class=\"ro-badge\"\u003eNSF Rated Components\u003c\/span\u003e\n\u003cspan class=\"ro-badge\"\u003eHigh Rejection Membrane\u003c\/span\u003e\n\u003cspan class=\"ro-badge\"\u003e12 Month Supply\u003c\/span\u003e\n\u003cspan class=\"ro-badge\"\u003eWP4V-50 Compatible\u003c\/span\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"ro-callout\"\u003e\nThis annual bundle includes every filter component needed to maintain a Watts Premier WP4-V reverse osmosis system for one full year. Each filter is manufactured to OEM specifications and tested for performance, delivering 97% stabilized salt rejection through a high-rejection membrane with integrated check valve technology.\n\u003c\/div\u003e\n\n\u003cdiv class=\"ro-section\"\u003e\n\u003cdiv class=\"ro-label\"\u003eHOW IT WORKS\u003c\/div\u003e\n\u003ch2 class=\"ro-title\"\u003eFour-Stage Filtration Process\u003c\/h2\u003e\n\n\u003cdiv class=\"stage-pipeline\"\u003e\n\n\u003cdiv class=\"stage-row\"\u003e\n\u003cdiv class=\"stage-line\"\u003e\u003c\/div\u003e\n\u003cdiv class=\"stage-num\"\u003e1\u003c\/div\u003e\n\u003cdiv class=\"stage-body\"\u003e\n\u003cspan class=\"stage-tag\"\u003eSEDIMENT\u003c\/span\u003e\n\u003ch3\u003ePre-Filtration\u003c\/h3\u003e\n\u003cp\u003e10-inch sediment filter at 5 microns removes larger particles, dirt, rust, and suspended solids before water reaches subsequent stages. Replacement for part 104017, NSF rated for consistent performance.\u003c\/p\u003e\n\u003cspan class=\"stage-part\"\u003eReplace annually\u003c\/span\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"stage-row\"\u003e\n\u003cdiv class=\"stage-line\"\u003e\u003c\/div\u003e\n\u003cdiv class=\"stage-num\"\u003e2\u003c\/div\u003e\n\u003cdiv class=\"stage-body\"\u003e\n\u003cspan class=\"stage-tag\"\u003eCARBON\u003c\/span\u003e\n\u003ch3\u003eChemical Reduction\u003c\/h3\u003e\n\u003cp\u003e10-inch carbon block filter at 5 microns removes chlorine, taste, odor, and organic compounds. Replacement for part 101009, NSF rated to protect the membrane and improve water quality.\u003c\/p\u003e\n\u003cspan class=\"stage-part\"\u003eReplace annually\u003c\/span\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"stage-row\"\u003e\n\u003cdiv class=\"stage-line\"\u003e\u003c\/div\u003e\n\u003cdiv class=\"stage-num\"\u003e3\u003c\/div\u003e\n\u003cdiv class=\"stage-body\"\u003e\n\u003cspan class=\"stage-tag\"\u003eMEMBRANE\u003c\/span\u003e\n\u003ch3\u003eReverse Osmosis\u003c\/h3\u003e\n\u003cp\u003e50 GPD high rejection membrane with internal check valve removes dissolved solids, contaminants, and impurities. Cast thin film semi-permeable membrane achieves 97% salt rejection. Replacement for part 560014.\u003c\/p\u003e\n\u003cspan class=\"stage-part\"\u003eReplace annually\u003c\/span\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"stage-row\"\u003e\n\u003cdiv class=\"stage-line\"\u003e\u003c\/div\u003e\n\u003cdiv class=\"stage-num\"\u003e4\u003c\/div\u003e\n\u003cdiv class=\"stage-body\"\u003e\n\u003cspan class=\"stage-tag\"\u003ePOLISH\u003c\/span\u003e\n\u003ch3\u003ePost-Filtration\u003c\/h3\u003e\n\u003cp\u003eVOC Carbon Plus post filter provides final polishing, removing residual taste and volatile organic compounds. Replacement for part 101013, NSF rated for optimal drinking water quality.\u003c\/p\u003e\n\u003cspan class=\"stage-part\"\u003eReplace annually\u003c\/span\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003c\/div\u003e\n\n\u003c\/div\u003e\n\n\u003cdiv class=\"ro-section\"\u003e\n\u003cdiv class=\"ro-label\"\u003eCOMPATIBILITY\u003c\/div\u003e\n\u003ch2 class=\"ro-title\"\u003eSystem Requirements\u003c\/h2\u003e\n\u003cp\u003eDesigned specifically for Watts Premier WP4-V and WP4V-50 reverse osmosis systems. The high rejection membrane (replacement for OEM part 560018) features an integrated check valve, which is superior to external check valves typically placed in system elbows. This design ensures constant efficiency by replacing the check valve with each membrane change, preventing the reduced performance that occurs when check valves fail. All filters are manufactured as complete fit and function replacements for OEM components. Part numbers and names are used for cross-reference only and are not affiliated with the original manufacturer.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003c\/div\u003e","brand":"Isopure Water","offers":[{"title":"Default Title","offer_id":43639758094507,"sku":"560014 \/ CB \/ CMAX-VOC \/ SED","price":79.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0446\/7677\/6098\/files\/product-7943571931307-padded.jpg?v=1777265844"},{"product_id":"watts-qt-quick-twist-ro-filters-with-50gpd-membrane","title":"WATTS QT QUICK TWIST RO FILTERS WITH 50GPD MEMBRANE","description":"\n\u003clink href=\"https:\/\/fonts.googleapis.com\/css2?family=DM+Serif+Display:ital@0;1\u0026amp;family=DM+Sans:wght@300;400;500;600\u0026amp;display=swap\" rel=\"stylesheet\"\u003e\n\u003cstyle\u003e\n .ro-wrap {\n --deep:#0a1628;--ocean:#0f3460;--blue:#1565c0;--sky:#2196f3;--aqua:#4dd0e1;\n --white:#ffffff;--offwhite:#f2f7fc;--slate:#dce8f5;--text:#0d1f38;--muted:#4a6280;\n --gold:#f59e0b;--radius:12px;\n font-family:'DM Sans',sans-serif;color:var(--text);line-height:1.6;-webkit-font-smoothing:antialiased;overflow-wrap:break-word;word-break:break-word;min-width:0;\n }\n .ro-wrap .ro-hero{background:linear-gradient(135deg,var(--deep) 0%,var(--ocean) 50%,#1a5276 100%);color:var(--white);padding:52px 40px 44px;position:relative;overflow:hidden;border-radius:var(--radius) var(--radius) 0 0;}\n .ro-wrap .ro-hero::before{content:'';position:absolute;inset:0;background:radial-gradient(ellipse 70% 55% at 95% 45%,rgba(77,208,225,.15) 0%,transparent 65%),radial-gradient(ellipse 40% 40% at 5% 80%,rgba(255,255,255,.05) 0%,transparent 60%);pointer-events:none;}\n .ro-wrap .ro-eyebrow{font-size:13px !important;font-weight:600;letter-spacing:.18em;text-transform:uppercase;color:var(--aqua);margin-bottom:12px;}\n .ro-wrap .ro-hero h2{font-family:'DM Serif Display',serif;font-size:clamp(26px,4vw,40px) !important;line-height:1.15;font-weight:400;margin-bottom:16px;color:var(--white);}\n .ro-wrap .ro-hero h2 em{font-style:italic;color:var(--aqua);}\n .ro-wrap .ro-tagline{font-size:18px !important;color:rgba(255,255,255,.75);font-weight:300;margin-bottom:28px;}\n .ro-wrap .ro-badges{display:flex;flex-wrap:wrap;gap:10px;}\n .ro-wrap .ro-badge{display:inline-flex;align-items:center;gap:6px;background:rgba(255,255,255,.12);border:1px solid rgba(255,255,255,.2);color:var(--white);font-size:15px !important;font-weight:500;padding:6px 14px;border-radius:40px;backdrop-filter:blur(6px);}\n .ro-wrap .ro-callout{background:var(--offwhite);border-left:4px solid var(--sky);padding:20px 24px;}\n .ro-wrap .ro-callout p{font-size:18px !important;color:var(--text);line-height:1.7;margin:0;}\n .ro-wrap .ro-callout strong{color:var(--ocean);}\n .ro-wrap .ro-section{padding:36px 40px;border-bottom:1px solid var(--slate);}\n .ro-wrap .ro-label{font-size:13px !important;font-weight:700;letter-spacing:.2em;text-transform:uppercase;color:var(--sky);margin-bottom:8px;}\n .ro-wrap .ro-title{font-family:'DM Serif Display',serif;font-size:24px !important;color:var(--deep);margin-bottom:20px;font-weight:400;}\n .ro-wrap .stage-pipeline{display:flex;flex-direction:column;gap:0;margin-top:4px;}\n .ro-wrap .stage-row{display:flex;flex-direction:row;gap:12px;position:relative;min-width:0;align-items:flex-start;width:100%;box-sizing:border-box;}\n .ro-wrap .stage-row:not(:last-child) .stage-line{position:absolute;left:17px;top:40px;bottom:0;width:2px;background:var(--slate);}\n .ro-wrap .stage-num{width:36px;height:36px;min-width:36px;max-width:36px;border-radius:50%;background:linear-gradient(135deg,var(--ocean),var(--sky));color:white;display:flex;align-items:center;justify-content:center;font-size:16px !important;font-weight:700;flex:0 0 36px;position:relative;z-index:1;margin-top:16px;}\n .ro-wrap .stage-body{background:var(--offwhite);border:1px solid var(--slate);border-radius:var(--radius);padding:16px 18px;margin-bottom:12px;flex:1 1 0;min-width:0;overflow:hidden;overflow-wrap:break-word;word-break:break-word;box-sizing:border-box;}\n .ro-wrap .stage-body h3{font-size:20px !important;font-weight:600;color:var(--deep);margin-bottom:8px;margin-top:6px;}\n .ro-wrap .stage-tag{display:block;font-size:12px !important;font-weight:700;letter-spacing:.04em;text-transform:uppercase;background:var(--slate);color:var(--ocean);padding:3px 8px;border-radius:4px;margin-bottom:8px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;max-width:100%;line-height:1.5 !important;box-sizing:border-box;}\n .ro-wrap .stage-body p{font-size:18px !important;color:var(--muted);line-height:1.6;margin:0;display:block;}\n .ro-wrap .stage-body .stage-part{font-size:15px !important;color:var(--sky);margin-top:6px;font-weight:500;}\n .ro-wrap .specs-table{width:100%;border-collapse:collapse;font-size:18px !important;}\n .ro-wrap .specs-table tr{border-bottom:1px solid var(--slate);}\n .ro-wrap .specs-table tr:last-child{border-bottom:none;}\n .ro-wrap .specs-table td{padding:11px 6px;vertical-align:top;}\n .ro-wrap .specs-table td:first-child{font-weight:500;color:var(--deep);width:44%;padding-right:16px;}\n .ro-wrap .specs-table td:last-child{color:var(--muted);}\n .ro-wrap .specs-table tr:hover td{background:var(--offwhite);}\n .ro-wrap .conditions-table{width:100%;border-collapse:collapse;font-size:18px !important;margin-top:4px;}\n .ro-wrap .conditions-table th{background:var(--deep);color:var(--white);font-size:15px !important;font-weight:600;letter-spacing:.06em;text-transform:uppercase;padding:10px 12px;text-align:left;}\n .ro-wrap .conditions-table th:first-child{border-radius:var(--radius) 0 0 0;}\n .ro-wrap .conditions-table th:last-child{border-radius:0 var(--radius) 0 0;}\n .ro-wrap .conditions-table td{padding:10px 12px;border-bottom:1px solid var(--slate);color:var(--text);}\n .ro-wrap .conditions-table tr:nth-child(even) td{background:var(--offwhite);}\n .ro-wrap .ro-feature-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(min(220px,100%),1fr));gap:16px;margin-top:4px;}\n .ro-wrap .ro-feature-card{background:var(--offwhite);border:1px solid var(--slate);border-radius:var(--radius);padding:20px 18px;}\n .ro-wrap .ro-feat-icon{width:40px;height:40px;background:linear-gradient(135deg,var(--ocean),var(--sky));border-radius:10px;display:flex;align-items:center;justify-content:center;margin-bottom:12px;}\n .ro-wrap .ro-feature-card h3{font-size:20px !important;font-weight:600;color:var(--deep);margin-bottom:6px;}\n .ro-wrap .ro-feature-card p{font-size:18px !important;color:var(--muted);line-height:1.55;margin:0;}\n .ro-wrap .pro-tip{display:block;background:#fffbeb;border:1px solid #f5d87a;border-radius:var(--radius);padding:18px 20px;margin-top:20px;box-sizing:border-box;width:100% !important;}\n .ro-wrap .pro-tip-icon{font-size:22px !important;display:inline;margin-right:8px;line-height:1.6 !important;}\n .ro-wrap .pro-tip p{font-size:18px !important;color:#5a4500;line-height:1.6 !important;margin:0;display:block;width:100%;}\n .ro-wrap .pro-tip strong{color:#3d2e00;}\n .ro-wrap .install-steps{counter-reset:step;list-style:none;padding:0;margin:4px 0 0;display:flex;flex-direction:column;gap:14px;}\n .ro-wrap .install-steps li{counter-increment:step;display:flex;align-items:flex-start;gap:14px;font-size:18px !important;color:var(--text);}\n .ro-wrap .install-steps li::before{content:counter(step);display:flex;align-items:center;justify-content:center;width:28px;height:28px;border-radius:50%;background:var(--ocean);color:white;font-size:15px !important;font-weight:700;flex-shrink:0;margin-top:1px;}\n .ro-wrap .filter-schedule{display:grid;grid-template-columns:repeat(auto-fill,minmax(min(180px,100%),1fr));gap:12px;margin-top:4px;}\n .ro-wrap .schedule-card{background:var(--offwhite);border:1px solid var(--slate);border-radius:var(--radius);padding:16px;}\n .ro-wrap .schedule-card .interval{font-size:22px !important;font-family:'DM Serif Display',serif;color:var(--sky);font-weight:400;margin-bottom:4px;}\n .ro-wrap .schedule-card h4{font-size:18px !important;font-weight:600;color:var(--deep);margin-bottom:4px;}\n .ro-wrap .schedule-card p{font-size:15px !important;color:var(--muted);margin:0;line-height:1.45;}\n .ro-wrap .benefits-strip{display:flex;flex-wrap:wrap;background:var(--deep);color:var(--white);border-radius:0 0 var(--radius) var(--radius);overflow:hidden;}\n .ro-wrap .benefit-item{flex:1 1 200px;padding:24px 22px;border-right:1px solid rgba(255,255,255,.1);}\n .ro-wrap .benefit-item:last-child{border-right:none;}\n .ro-wrap .bi-icon{font-size:22px !important;margin-bottom:10px;}\n .ro-wrap .benefit-item h4{font-size:15px !important;font-weight:600;color:var(--aqua);margin-bottom:5px;text-transform:uppercase;letter-spacing:.05em;}\n .ro-wrap .benefit-item p{font-size:15px !important;color:rgba(255,255,255,.65);line-height:1.55;margin:0;}\n .ro-wrap .faucet-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(min(200px,100%),1fr));gap:16px;margin-top:4px;}\n .ro-wrap .faucet-card{border:2px solid var(--slate);border-radius:var(--radius);padding:18px;text-align:center;}\n .ro-wrap .faucet-icon{font-size:28px !important;margin-bottom:10px;}\n .ro-wrap .faucet-card h4{font-size:18px !important;font-weight:600;color:var(--deep);margin-bottom:6px;}\n .ro-wrap .faucet-card p{font-size:15px !important;color:var(--muted);line-height:1.5;margin:0;}\n .ro-wrap .spec-cards{display:grid;grid-template-columns:repeat(auto-fill,minmax(min(180px,100%),1fr));gap:12px;margin-top:4px;}\n .ro-wrap .spec-card{background:var(--offwhite);border:1px solid var(--slate);border-radius:var(--radius);padding:16px;}\n .ro-wrap .spec-card .sc-label{font-size:13px !important;font-weight:700;letter-spacing:.08em;color:var(--sky);text-transform:uppercase;margin-bottom:4px;}\n .ro-wrap .spec-card .sc-value{font-size:20px !important;font-weight:600;color:var(--deep);margin-bottom:4px;}\n .ro-wrap .spec-card .sc-note{font-size:15px !important;color:var(--muted);}\n @media(max-width:640px){\n .ro-wrap .ro-hero{padding:36px 24px 32px;}\n .ro-wrap .ro-section{padding:28px 20px;}\n .ro-wrap .ro-feature-grid,.ro-wrap .faucet-grid,.ro-wrap .filter-schedule,.ro-wrap .spec-cards{grid-template-columns:1fr;}\n .ro-wrap .benefits-strip{flex-direction:column;}\n .ro-wrap .benefit-item{border-right:none;border-bottom:1px solid rgba(255,255,255,.1);}\n }\n \/* ── Nuclear override — force all text inside ro-wrap to be readable ── *\/\n .ro-wrap p,\n .ro-wrap li,\n .ro-wrap td,\n .ro-wrap th,\n .ro-wrap .ro-section \u003e p {\n font-size: 18px !important;\n line-height: 1.6 !important;\n }\n .ro-wrap .ro-section \u003e p,\n .ro-wrap .ro-callout p,\n .ro-wrap .stage-body p,\n .ro-wrap .ro-feature-card p,\n .ro-wrap .schedule-card p,\n .ro-wrap .faucet-card p,\n .ro-wrap .spec-card .sc-note,\n .ro-wrap .pro-tip p {\n font-size: 18px !important;\n line-height: 1.6 !important;\n }\n .ro-wrap h2 { font-size: clamp(26px,4vw,40px) !important; line-height:1.15 !important; }\n .ro-wrap h3 { font-size: 20px !important; line-height:1.3 !important; }\n .ro-wrap h4 { font-size: 18px !important; line-height:1.3 !important; }\n .ro-wrap .ro-label,\n .ro-wrap .stage-tag,\n .ro-wrap .sc-label { font-size: 14px !important; }\n .ro-wrap .ro-title { font-size: 24px !important; }\n .ro-wrap .interval { font-size: 22px !important; }\n .ro-wrap .stage-num { font-size: 16px !important; }\n .ro-wrap .ro-eyebrow { font-size: 14px !important; }\n .ro-wrap .ro-badge { font-size: 15px !important; }\n\u003c\/style\u003e\n\u003cdiv class=\"ro-wrap\"\u003e\n \u003cdiv class=\"ro-hero\"\u003e\n \u003cdiv class=\"ro-eyebrow\"\u003eWatts Quick Twist Complete Filter Kit\u003c\/div\u003e\n \u003ch2\u003e\u003cem\u003eWATTS QT QUICK TWIST RO FILTERS WITH 50GPD MEMBRANE\u003c\/em\u003e\u003c\/h2\u003e\n \u003cp class=\"ro-tagline\"\u003eComplete 4-stage replacement filter set for Watts Quick Twist reverse osmosis systems, including sediment, GAC, carbon block, and 50 GPD membrane\u003c\/p\u003e\n \u003cdiv class=\"ro-badges\"\u003e\n \u003cspan class=\"ro-badge\"\u003eWatts OEM\u003c\/span\u003e\n \u003cspan class=\"ro-badge\"\u003e50 GPD Membrane\u003c\/span\u003e\n \u003cspan class=\"ro-badge\"\u003eQuick Twist Design\u003c\/span\u003e\n \u003c\/div\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"ro-section\"\u003e\n \u003cdiv class=\"ro-label\"\u003eFILTRATION STAGES\u003c\/div\u003e\n \u003ch3 class=\"ro-title\"\u003eFour-stage protection for complete RO performance\u003c\/h3\u003e\n \u003cdiv class=\"stage-pipeline\"\u003e\n \u003cdiv class=\"stage-card\"\u003e\n \u003cdiv class=\"stage-tag\"\u003eSEDIMENT\u003c\/div\u003e\n \u003ch4\u003eWQTSC-10\u003c\/h4\u003e\n \u003cp\u003eRemoves sediment, rust, and particulate down to 5 microns to protect downstream filters\u003c\/p\u003e\n \u003c\/div\u003e\n \u003cdiv class=\"stage-card\"\u003e\n \u003cdiv class=\"stage-tag\"\u003eGAC\u003c\/div\u003e\n \u003ch4\u003eWQTCGAC-10\u003c\/h4\u003e\n \u003cp\u003eGranular activated carbon reduces chlorine, taste, and odor before the membrane\u003c\/p\u003e\n \u003c\/div\u003e\n \u003cdiv class=\"stage-card\"\u003e\n \u003cdiv class=\"stage-tag\"\u003eCARBON\u003c\/div\u003e\n \u003ch4\u003eWQTCBC-10\u003c\/h4\u003e\n \u003cp\u003eCarbon block stage provides final chlorine reduction to protect the RO membrane\u003c\/p\u003e\n \u003c\/div\u003e\n \u003cdiv class=\"stage-card\"\u003e\n \u003cdiv class=\"stage-tag\"\u003eMEMBRANE\u003c\/div\u003e\n \u003ch4\u003eWQTCM50-10\u003c\/h4\u003e\n \u003cp\u003e50 GPD reverse osmosis membrane removes dissolved solids, heavy metals, and contaminants\u003c\/p\u003e\n \u003c\/div\u003e\n \u003c\/div\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"ro-section\"\u003e\n \u003cdiv class=\"ro-label\"\u003eWHY IT WORKS\u003c\/div\u003e\n \u003ch3 class=\"ro-title\"\u003eDesigned for Watts Quick Twist systems\u003c\/h3\u003e\n \u003cdiv class=\"ro-feature-grid\"\u003e\n \u003cdiv class=\"ro-feature-card\"\u003e\n \u003cdiv class=\"ro-feat-icon\"\u003e\u003cspan\u003e🔄\u003c\/span\u003e\u003c\/div\u003e\n \u003ch3\u003eTool-Free Installation\u003c\/h3\u003e\n \u003cp\u003eQuick Twist housings let you replace all four filters in minutes without wrenches or mess\u003c\/p\u003e\n \u003c\/div\u003e\n \u003cdiv class=\"ro-feature-card\"\u003e\n \u003cdiv class=\"ro-feat-icon\"\u003e\u003cspan\u003e🎯\u003c\/span\u003e\u003c\/div\u003e\n \u003ch3\u003eOEM Specification\u003c\/h3\u003e\n \u003cp\u003eGenuine Watts filters engineered to exact tolerances for your Quick Twist RO system\u003c\/p\u003e\n \u003c\/div\u003e\n \u003cdiv class=\"ro-feature-card\"\u003e\n \u003cdiv class=\"ro-feat-icon\"\u003e\u003cspan\u003e💧\u003c\/span\u003e\u003c\/div\u003e\n \u003ch3\u003e50 GPD Output\u003c\/h3\u003e\n \u003cp\u003eWQTCM50-10 membrane delivers consistent 50 gallons per day production for household use\u003c\/p\u003e\n \u003c\/div\u003e\n \u003cdiv class=\"ro-feature-card\"\u003e\n \u003cdiv class=\"ro-feat-icon\"\u003e\u003cspan\u003e🛡️\u003c\/span\u003e\u003c\/div\u003e\n \u003ch3\u003eComplete Protection\u003c\/h3\u003e\n \u003cp\u003eFour-stage pre-treatment and membrane filtration removes up to 99% of dissolved solids\u003c\/p\u003e\n \u003c\/div\u003e\n \u003c\/div\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"ro-section\"\u003e\n \u003cdiv class=\"ro-label\"\u003eCOMPATIBILITY\u003c\/div\u003e\n \u003ch3 class=\"ro-title\"\u003eFits Watts Quick Twist RO systems\u003c\/h3\u003e\n \u003cp\u003eThis kit is designed for Watts Quick Twist reverse osmosis systems that use the WQTSC-10 sediment filter, WQTCGAC-10 granular activated carbon filter, WQTCBC-10 carbon block filter, and WQTCM50-10 membrane. Confirm your system uses 10-inch Quick Twist housings before ordering. Not compatible with standard threaded filter housings or other brands.\u003c\/p\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"ro-section\"\u003e\n \u003cdiv class=\"ro-label\"\u003eMAINTENANCE\u003c\/div\u003e\n \u003ch3 class=\"ro-title\"\u003eReplacement schedule\u003c\/h3\u003e\n \u003cdiv class=\"filter-schedule\"\u003e\n \u003cdiv class=\"schedule-card\"\u003e\n \u003cdiv class=\"interval\"\u003eEvery 6 Months\u003c\/div\u003e\n \u003ch4\u003ePre-Filters\u003c\/h4\u003e\n \u003cp\u003eReplace WQTSC-10 sediment, WQTCGAC-10 GAC, and WQTCBC-10 carbon block filters to maintain flow and protect the membrane\u003c\/p\u003e\n \u003c\/div\u003e\n \u003cdiv class=\"schedule-card\"\u003e\n \u003cdiv class=\"interval\"\u003eEvery 2-3 Years\u003c\/div\u003e\n \u003ch4\u003eRO Membrane\u003c\/h4\u003e\n \u003cp\u003eReplace WQTCM50-10 membrane based on water quality and production decline. Test TDS regularly to monitor performance\u003c\/p\u003e\n \u003c\/div\u003e\n \u003cdiv class=\"schedule-card\"\u003e\n \u003cdiv class=\"interval\"\u003eComplete Kit\u003c\/div\u003e\n \u003ch4\u003eAnnual Service\u003c\/h4\u003e\n \u003cp\u003eReplace all four filters together once per year for systems with average use and good source water quality\u003c\/p\u003e\n \u003c\/div\u003e\n \u003c\/div\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"benefits-strip\"\u003e\n \u003cdiv class=\"benefit-item\"\u003e\n \u003cdiv class=\"bi-icon\"\u003e🔧\u003c\/div\u003e\n \u003ch4\u003eQuick Twist Design\u003c\/h4\u003e\n \u003cp\u003eNo tools required for filter changes\u003c\/p\u003e\n \u003c\/div\u003e\n \u003cdiv class=\"benefit-item\"\u003e\n \u003cdiv class=\"bi-icon\"\u003e📦\u003c\/div\u003e\n \u003ch4\u003eComplete Kit\u003c\/h4\u003e\n \u003cp\u003eAll four stages in one package\u003c\/p\u003e\n \u003c\/div\u003e\n \u003cdiv class=\"benefit-item\"\u003e\n \u003cdiv class=\"bi-icon\"\u003e✓\u003c\/div\u003e\n \u003ch4\u003eWatts OEM Quality\u003c\/h4\u003e\n \u003cp\u003eFactory-spec filters for reliable performance\u003c\/p\u003e\n \u003c\/div\u003e\n \u003cdiv class=\"benefit-item\"\u003e\n \u003cdiv class=\"bi-icon\"\u003e💵\u003c\/div\u003e\n \u003ch4\u003eBetter Value\u003c\/h4\u003e\n \u003cp\u003eKit pricing versus individual filters\u003c\/p\u003e\n \u003c\/div\u003e\n \u003c\/div\u003e\n\u003c\/div\u003e","brand":"Isopure Water","offers":[{"title":"Default Title","offer_id":44706686369963,"sku":"QT-4PK","price":220.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0446\/7677\/6098\/files\/product-8282294550699-padded.jpg?v=1777271416"}],"url":"https:\/\/www.isopurewater.com\/collections\/watts-ro-oneflow-replacement-filters.oembed?page=3","provider":"Isopure Water","version":"1.0","type":"link"}