{"title":"Reverse Osmosis Membranes","description":null,"products":[{"product_id":"filmtec-tw30-1812-thin-film-composite-replacement-residential-reverse-osmosis-membrane","title":"Filmtec (TW30-1812) Thin Film Composite Replacement Residential Reverse Osmosis 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 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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\"\u003eFilmtec\u003c\/div\u003e\n\u003ch2\u003eTW30-1812 Thin Film Composite RO Membrane\u003c\/h2\u003e\n\u003cdiv class=\"ro-tagline\"\u003eIndustry-standard residential reverse osmosis membrane with proven thin film composite technology\u003c\/div\u003e\n\u003cdiv class=\"ro-badges\"\u003e\n\u003cspan class=\"ro-badge\"\u003eNSF\/ANSI 58 Listed\u003c\/span\u003e\n\u003cspan class=\"ro-badge\"\u003e1.8\" × 12\" Standard Size\u003c\/span\u003e\n\u003cspan class=\"ro-badge\"\u003e50 GPD at 50 PSI\u003c\/span\u003e\n\u003cspan class=\"ro-badge\"\u003e2-5 Year Service Life\u003c\/span\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"ro-callout\"\u003e\nThe TW30-1812 is the workhorse membrane in residential reverse osmosis systems, using Dow Filmtec's thin film composite technology to reject up to 99% of total dissolved solids. Rated at 50 psi rather than the typical 60 psi, this membrane produces approximately 20% more permeate water than competitive elements while maintaining excellent rejection rates across a wide range of contaminants including lead, arsenic, fluoride, nitrates, and hardness minerals.\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\"\u003eTW30-1812 Technical Data\u003c\/h3\u003e\n\u003cdiv class=\"specs-table\"\u003e\n\u003cdiv class=\"spec-row\"\u003e\n\u003cspan class=\"spec-label\"\u003eMembrane Type\u003c\/span\u003e\n\u003cspan class=\"spec-value\"\u003eThin Film Composite (TFC) Polyamide\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"spec-row\"\u003e\n\u003cspan class=\"spec-label\"\u003eDimensions\u003c\/span\u003e\n\u003cspan class=\"spec-value\"\u003e1.8\" diameter × 12\" length\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"spec-row\"\u003e\n\u003cspan class=\"spec-label\"\u003eWeight\u003c\/span\u003e\n\u003cspan class=\"spec-value\"\u003e15 oz (dry)\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"spec-row\"\u003e\n\u003cspan class=\"spec-label\"\u003eRated Capacity\u003c\/span\u003e\n\u003cspan class=\"spec-value\"\u003e50 GPD at 50 PSI, 77°F\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"spec-row\"\u003e\n\u003cspan class=\"spec-label\"\u003eOperating Pressure\u003c\/span\u003e\n\u003cspan class=\"spec-value\"\u003e40-145 PSI\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"spec-row\"\u003e\n\u003cspan class=\"spec-label\"\u003eTemperature Range\u003c\/span\u003e\n\u003cspan class=\"spec-value\"\u003e40-100°F\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"spec-row\"\u003e\n\u003cspan class=\"spec-label\"\u003eTDS Rejection\u003c\/span\u003e\n\u003cspan class=\"spec-value\"\u003e95-99% (typical 97%)\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"spec-row\"\u003e\n\u003cspan class=\"spec-label\"\u003eService Life\u003c\/span\u003e\n\u003cspan class=\"spec-value\"\u003e2-5 years depending on feed water quality\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"spec-row\"\u003e\n\u003cspan class=\"spec-label\"\u003eCertification\u003c\/span\u003e\n\u003cspan class=\"spec-value\"\u003eNSF\/ANSI Standard 58\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"spec-row\"\u003e\n\u003cspan class=\"spec-label\"\u003eShipping Condition\u003c\/span\u003e\n\u003cspan class=\"spec-value\"\u003eDry (extended shelf life)\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\"\u003eCOMPATIBILITY\u003c\/div\u003e\n\u003ch3 class=\"ro-title\"\u003eFits Most Standard Residential RO Systems\u003c\/h3\u003e\n\u003cp\u003eThe TW30-1812 fits conventional residential reverse osmosis systems with 1812-size membrane housings, which represents the vast majority of under-sink and countertop units. This includes systems from APEC, iSpring, Watts, Express Water, and most other major brands using standard 1.8\" × 12\" membrane housings. Direct replacement for Filmtec TW30-1812-50, TW30-1812-100, and functionally equivalent to BW60-1812-75 in residential applications. Verify your existing membrane size before ordering, but if your system uses a white cylindrical membrane approximately 12 inches long, this is almost certainly the correct replacement.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003c\/div\u003e","brand":"Filmtec","offers":[{"title":"50 GPD","offer_id":35578473414818,"sku":"TW30-1812-50HR","price":38.86,"currency_code":"USD","in_stock":true},{"title":"75 GPD","offer_id":35578473447586,"sku":"BW60-1812-75","price":40.11,"currency_code":"USD","in_stock":true},{"title":"100 GPD","offer_id":35578473480354,"sku":"TW30-1812-100HR","price":67.72,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0446\/7677\/6098\/files\/filmtec-tw30-1812-thin-film-composite-replacement-residential-reverse-osmosis-membrane-561423.jpg?v=1762459400"},{"product_id":"ge-merlin-4000569-3-16-x-18-75-r-o-tfc-membrane-350-gpd-hydrologic-compatible","title":"GE Merlin (4000569) 3.16\" x 18.75\" TFC Reverse Osmosis Membrane 350 GPD - Hydrologic Compatible","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 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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 \u003cdiv class=\"ro-hero\"\u003e\n \u003cdiv class=\"ro-eyebrow\"\u003eGE Water \u0026amp; Process Technologies\u003c\/div\u003e\n \u003ch2\u003eGE Merlin 350 GPD TFC Reverse Osmosis Membrane\u003c\/h2\u003e\n \u003cdiv class=\"ro-tagline\"\u003eHigh-capacity thin film composite membrane for commercial-grade residential systems\u003c\/div\u003e\n \u003cdiv class=\"ro-badges\"\u003e\n \u003cspan class=\"ro-badge\"\u003e350 GPD\u003c\/span\u003e\n \u003cspan class=\"ro-badge\"\u003e3.16\" × 18.75\"\u003c\/span\u003e\n \u003cspan class=\"ro-badge\"\u003eModel 4000569\u003c\/span\u003e\n \u003cspan class=\"ro-badge\"\u003eHydrologic Compatible\u003c\/span\u003e\n \u003c\/div\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"ro-callout\"\u003e\n \u003cp\u003eThe GE Merlin 4000569 delivers 350 gallons per day through proven thin film composite technology, engineered for residential installations that demand commercial-level output. This membrane fits Hydrologic and other systems designed for the 3.16\" × 18.75\" format, replacing GE legacy part 3027637.\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\"\u003eMembrane Performance Data\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\"\u003e4000569 (formerly 3027637)\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003ctd class=\"spec-label\"\u003eProduction Rate\u003c\/td\u003e\n \u003ctd class=\"spec-value\"\u003e350 gallons per day\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003ctd class=\"spec-label\"\u003eMembrane Dimensions\u003c\/td\u003e\n \u003ctd class=\"spec-value\"\u003e3.16\" diameter × 18.75\" length\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003ctd class=\"spec-label\"\u003eMembrane Type\u003c\/td\u003e\n \u003ctd class=\"spec-value\"\u003eThin Film Composite (TFC)\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\"\u003e2–4 years (feed water dependent)\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003ctd class=\"spec-label\"\u003eApplication Class\u003c\/td\u003e\n \u003ctd class=\"spec-value\"\u003eResidential \/ Light Commercial\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\"\u003eSystem Requirements\u003c\/div\u003e\n \u003cp\u003eThis membrane is designed for Hydrologic Evolution RO systems and any residential or commercial reverse osmosis unit configured for 3.16\" × 18.75\" membrane housings. Some multi-membrane systems require two membranes for complete replacement. Verify your system's membrane count and housing dimensions before ordering. Product water quality should be tested periodically to confirm membrane performance, with replacement intervals varying based on feed water TDS, temperature, and pressure conditions.\u003c\/p\u003e\n \u003c\/div\u003e\n\u003c\/div\u003e","brand":"GE Water","offers":[{"title":"Single","offer_id":45528801214635,"sku":"4000569","price":236.45,"currency_code":"USD","in_stock":true},{"title":"Two Pack","offer_id":45528801247403,"sku":"2x 4000569","price":399.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0446\/7677\/6098\/files\/product-5536589873314-padded.jpg?v=1777264436"},{"product_id":"axeon-tf-1812-50-r-o-tf-membrane-50-gpd","title":"Axeon (TF-1812) Replacement Residential Reverse Osmosis 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 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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 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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-hero\"\u003e\n\u003cdiv class=\"ro-eyebrow\"\u003eAxeon Residential RO Membrane\u003c\/div\u003e\n\u003ch2\u003eHigh-Performance \u003cem\u003eTF-1812-50\u003c\/em\u003e Reverse Osmosis Membrane\u003c\/h2\u003e\n\u003cp class=\"ro-tagline\"\u003eThin-film composite membrane delivering 50 gallons per day of purified water with superior contaminant rejection for residential reverse osmosis systems\u003c\/p\u003e\n\u003cdiv class=\"ro-badges\"\u003e\n\u003cspan class=\"ro-badge\"\u003e50 GPD\u003c\/span\u003e\n\u003cspan class=\"ro-badge\"\u003eTFC Technology\u003c\/span\u003e\n\u003cspan class=\"ro-badge\"\u003eMade in USA\u003c\/span\u003e\n\u003cspan class=\"ro-badge\"\u003e2-5 Year Life\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\"\u003eReverse Osmosis at the Molecular Level\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\u003eThin-Film Composite Barrier\u003c\/h3\u003e\n\u003cp\u003eSemi-permeable TFC membrane allows only water molecules to pass while blocking contaminants at the molecular level. Heavy metals, fluoride, and dissolved solids stay on the reject side.\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 Gallons Daily Output\u003c\/h3\u003e\n\u003cp\u003eProduces 50 gallons per day of purified water under normal operating conditions. Sufficient capacity for average household drinking, cooking, and beverage preparation needs.\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 Rejection Rate\u003c\/h3\u003e\n\u003cp\u003eRemoves lead, mercury, arsenic, fluoride, nitrates, bacteria, viruses, and sediment. Effective contaminant rejection ensures consistent water purity across a wide range of source water conditions.\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\u003eUniversal 1812 Format\u003c\/h3\u003e\n\u003cp\u003eStandard 1.8 inch diameter by 11.75 inch length dimensions fit most residential reverse osmosis systems using the common 1812 membrane housing size.\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 Standard Residential RO Systems\u003c\/h3\u003e\n\u003cp\u003eThe Axeon TF-1812-50 membrane is designed for universal compatibility with residential reverse osmosis systems that accommodate 1812-format membranes (1.8\" x 11.75\"). Compatible with most home RO systems from major manufacturers. Verify your system uses a 1812 membrane housing before ordering. Operating pressure range: 40-100 psi. Operating temperature range: 40-100°F.\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 2-3 Years\u003c\/div\u003e\n\u003ch4\u003eAverage Water Quality\u003c\/h4\u003e\n\u003cp\u003eFor municipal water sources with moderate TDS levels (150-300 ppm), replace the Axeon TF-1812-50 membrane every 2-3 years to maintain optimal flow rate and rejection performance.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"schedule-card\"\u003e\n\u003cdiv class=\"interval\"\u003eEvery 3-5 Years\u003c\/div\u003e\n\u003ch4\u003eExcellent Water Quality\u003c\/h4\u003e\n\u003cp\u003eWhen pre-filtration is effective and source water has low TDS (under 150 ppm), the membrane can perform reliably for 3-5 years before replacement is needed.\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\u003eChallenging Water Quality\u003c\/h4\u003e\n\u003cp\u003eFor well water or high TDS municipal sources (over 400 ppm), more frequent membrane replacement ensures consistent output and prevents premature fouling or scaling.\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\u003eAmerican Manufacturing\u003c\/h4\u003e\n\u003cp\u003eProduced in the USA with quality materials and consistent manufacturing standards for reliable filtration 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\u003eSimple Installation\u003c\/h4\u003e\n\u003cp\u003eDrop-in replacement design requires no special tools. Flush system for 15-20 minutes after installation to clear residuals\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 superior rejection rates compared to older cellulose acetate membrane designs\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"benefit-item\"\u003e\n\u003cdiv class=\"bi-icon\"\u003e💰\u003c\/div\u003e\n\u003ch4\u003eCost-Effective Filtration\u003c\/h4\u003e\n\u003cp\u003eLong service life and high daily capacity reduce the per-gallon cost of purified water for your household\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003c\/div\u003e","brand":"Axeon","offers":[{"title":"25 GPD","offer_id":35578371178658,"sku":"200357","price":49.99,"currency_code":"USD","in_stock":true},{"title":"35 GPD","offer_id":35578371375266,"sku":"200358","price":49.99,"currency_code":"USD","in_stock":true},{"title":"50 GPD","offer_id":35578371211426,"sku":"200359","price":49.53,"currency_code":"USD","in_stock":true},{"title":"75 GPD","offer_id":35578371276962,"sku":"200360","price":52.0,"currency_code":"USD","in_stock":true},{"title":"100 GPD","offer_id":35578371309730,"sku":"200361","price":72.0,"currency_code":"USD","in_stock":true},{"title":"150 GPD","offer_id":35578371342498,"sku":"200362","price":79.51,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0446\/7677\/6098\/files\/product-5536605733026-padded.jpg?v=1777258178"},{"product_id":"filmtec-tw30-2026-tap-water-membrane-220-gpd-2-x-26","title":"Filmtec (TW30-2026) Tap Water Membrane 220 GPD 2\" X 26\"","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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!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 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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 Filmtec TW30-2026 is a high-performance reverse osmosis membrane engineered for small commercial tap water applications, delivering 220 gallons per day with 99.5% salt rejection. This 2\" x 26\" membrane from Dow Filmtec provides reliable, energy-efficient purification for systems processing less than one gallon per minute.\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\"\u003eTW30-2026 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\"\u003e220 GPD\u003c\/div\u003e\n\u003cdiv class=\"sc-note\"\u003e0.83 m³\/d\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"spec-card\"\u003e\n\u003cdiv class=\"sc-label\"\u003eSalt Rejection\u003c\/div\u003e\n\u003cdiv class=\"sc-value\"\u003e99.5%\u003c\/div\u003e\n\u003cdiv class=\"sc-note\"\u003eStabilized performance\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"spec-card\"\u003e\n\u003cdiv class=\"sc-label\"\u003eMembrane Size\u003c\/div\u003e\n\u003cdiv class=\"sc-value\"\u003e2\" × 26\"\u003c\/div\u003e\n\u003cdiv class=\"sc-note\"\u003eStandard commercial\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"spec-card\"\u003e\n\u003cdiv class=\"sc-label\"\u003eActive Area\u003c\/div\u003e\n\u003cdiv class=\"sc-value\"\u003e7 ft²\u003c\/div\u003e\n\u003cdiv class=\"sc-note\"\u003e0.7 m²\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\"\u003eTap Water\u003c\/div\u003e\n\u003cdiv class=\"sc-note\"\u003eCommercial grade\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"spec-card\"\u003e\n\u003cdiv class=\"sc-label\"\u003eFlow Tolerance\u003c\/div\u003e\n\u003cdiv class=\"sc-value\"\u003e±20%\u003c\/div\u003e\n\u003cdiv class=\"sc-note\"\u003eIndividual variation\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\"\u003eTest Conditions \u0026amp; Operating Parameters\u003c\/h2\u003e\n\u003ctable class=\"specs-table\"\u003e\n\u003ctr\u003e\n\u003ctd\u003eModel Number\u003c\/td\u003e\n\u003ctd\u003eFilmtec TW30-2026\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTest Solution\u003c\/td\u003e\n\u003ctd\u003e2000 ppm NaCl\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Pressure\u003c\/td\u003e\n\u003ctd\u003e225 psig (15.5 bar)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTest Temperature\u003c\/td\u003e\n\u003ctd\u003e77°F (25°C)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRecovery Rate\u003c\/td\u003e\n\u003ctd\u003e10% (test standard)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMembrane Chemistry\u003c\/td\u003e\n\u003ctd\u003eThin-film composite polyamide\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eManufacturer\u003c\/td\u003e\n\u003ctd\u003eDow Filmtec\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\"\u003eIdeal Use Cases\u003c\/h2\u003e\n\u003cp\u003eThe TW30-2026 membrane is designed for small commercial reverse osmosis systems treating municipal tap water in restaurants, small offices, laboratories, and light industrial applications. This membrane fits standard 2\" diameter housings and is compatible with systems requiring less than 1 GPM of purified water output. Filmtec membranes deliver industry-leading longevity and consistent rejection performance across varying water chemistry conditions. Suitable for direct replacement in existing Dow Filmtec commercial systems or new installations where space constraints require the 26-inch length configuration.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"pro-tip\"\u003e\n💧 Filmtec membranes from Dow deliver the longest service life in the industry when properly maintained with adequate prefiltration. Individual element flow rates can vary up to 20% from nominal specifications while maintaining full rejection performance.\n\u003c\/div\u003e\n\n\u003c\/div\u003e","brand":"Filmtec","offers":[{"title":"Default Title","offer_id":35470199881890,"sku":"TW30-2026","price":439.85,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0446\/7677\/6098\/files\/product-5536632963234-padded.jpg?v=1777262234"},{"product_id":"filmtec-tw30-2514-tap-water-membrane-200-gpd-2-5x14","title":"Filmtec (TW30-2514) Tap Water Membrane 200 GPD 2.5\"X14\"","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 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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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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 Filmtec TW30-2514 is a high-rejection 200 GPD reverse osmosis membrane engineered for small commercial tap water applications requiring up to one gallon per minute of purified water. This 2.5\" x 14\" element delivers 99.5% stabilized salt rejection with 7 square feet of active membrane surface area, making it ideal for compact installations where space and performance both matter.\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\"\u003eFilmtec TW30-2514 Technical Details\u003c\/h2\u003e\n\u003ctable class=\"specs-table\"\u003e\n\u003ctr\u003e\n\u003ctd\u003eModel Number\u003c\/td\u003e\n\u003ctd\u003eTW30-2514\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003e2.5\" diameter x 14\" length\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePermeate Flow Rate\u003c\/td\u003e\n\u003ctd\u003e200 GPD (0.76 m³\/d)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eActive Membrane Area\u003c\/td\u003e\n\u003ctd\u003e7 ft² (0.7 m²)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSalt Rejection\u003c\/td\u003e\n\u003ctd\u003e99.5% stabilized\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTest Conditions\u003c\/td\u003e\n\u003ctd\u003e2000 ppm NaCl, 225 psig, 77°F, 5% recovery\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eApplication\u003c\/td\u003e\n\u003ctd\u003eTap water, small commercial systems\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFlow Tolerance\u003c\/td\u003e\n\u003ctd\u003e±20% per element\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\"\u003eInstalling the TW30-2514 Membrane\u003c\/h2\u003e\n\u003col class=\"install-steps\"\u003e\n\u003cli\u003eFlush your RO system housing with clean water and inspect the brine seal and O-rings for damage or debris before installation.\u003c\/li\u003e\n\u003cli\u003eRemove the protective packaging from the Filmtec TW30-2514 membrane and carefully insert it into the housing with the brine seal end facing the concentrate port.\u003c\/li\u003e\n\u003cli\u003eHand-tighten the housing cap, connect feed and permeate lines, then pressurize slowly and check for leaks at all connection points.\u003c\/li\u003e\n\u003cli\u003eFlush the membrane for 30-60 minutes at operating pressure before putting the system into service, discarding initial permeate to remove preservatives.\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 Filmtec TW30-2514 membrane fits standard 2.5\" diameter housings designed for 14\" residential or light commercial RO elements. This membrane is engineered specifically for municipal tap water applications and performs optimally at feed pressures around 225 psi with water temperatures between 40-100°F. Compatible with most commercial and high-capacity residential reverse osmosis systems from brands like AXEON, Pentair, Watts, and others using the 2514 form factor. For well water or high-sediment applications, install appropriate sediment and carbon pre-filtration to protect membrane integrity and maximize service life.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"pro-tip\"\u003e\n🔧 Individual Filmtec elements can vary up to 20% in permeate flow from the rated 200 GPD due to manufacturing tolerances. If precise output is critical for your application, plan your system capacity with this variance in mind or test the specific element after installation.\n\u003c\/div\u003e\n\n\u003c\/div\u003e","brand":"Filmtec","offers":[{"title":"Default Title","offer_id":35470199980194,"sku":"TW30-2514","price":359.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0446\/7677\/6098\/files\/product-5536633061538-padded.jpg?v=1777262237"},{"product_id":"filmtec-tw30-2521-tap-water-membrane-325-gpd-2-5-x-21","title":"Filmtec (TW30-2521) Tap Water Membrane 325 GPD 2.5\" X 21\"","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 Filmtec TW30-2521 is a high-efficiency reverse osmosis membrane engineered for small commercial tap water applications, delivering 325 gallons per day at 99.5% stabilized salt rejection. This 2.5\" x 21\" element provides 13 square feet of active membrane surface area, optimized for systems purifying less than one gallon per minute with industry-leading reliability and energy efficiency.\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\"\u003eTW30-2521 Core Performance Metrics\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\"\u003e325 GPD\u003c\/div\u003e\n\u003cdiv class=\"sc-note\"\u003e1.23 m³\/d nominal flow\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"spec-card\"\u003e\n\u003cdiv class=\"sc-label\"\u003eSalt Rejection\u003c\/div\u003e\n\u003cdiv class=\"sc-value\"\u003e99.5%\u003c\/div\u003e\n\u003cdiv class=\"sc-note\"\u003eStabilized performance\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"spec-card\"\u003e\n\u003cdiv class=\"sc-label\"\u003eMembrane Area\u003c\/div\u003e\n\u003cdiv class=\"sc-value\"\u003e13 ft²\u003c\/div\u003e\n\u003cdiv class=\"sc-note\"\u003e1.2 m² active surface\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"spec-card\"\u003e\n\u003cdiv class=\"sc-label\"\u003eElement Size\u003c\/div\u003e\n\u003cdiv class=\"sc-value\"\u003e2.5\" × 21\"\u003c\/div\u003e\n\u003cdiv class=\"sc-note\"\u003eCompact commercial\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"spec-card\"\u003e\n\u003cdiv class=\"sc-label\"\u003eOperating Pressure\u003c\/div\u003e\n\u003cdiv class=\"sc-value\"\u003e225 psi\u003c\/div\u003e\n\u003cdiv class=\"sc-note\"\u003e15.5 bar rated\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"spec-card\"\u003e\n\u003cdiv class=\"sc-label\"\u003eRecovery Rate\u003c\/div\u003e\n\u003cdiv class=\"sc-value\"\u003e8%\u003c\/div\u003e\n\u003cdiv class=\"sc-note\"\u003eTest standard\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\"\u003eTest Conditions \u0026amp; Operating Parameters\u003c\/h2\u003e\n\u003ctable class=\"specs-table\"\u003e\n\u003ctr\u003e\n\u003ctd\u003eModel Number\u003c\/td\u003e\n\u003ctd\u003eFilmtec TW30-2521\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTest Solution\u003c\/td\u003e\n\u003ctd\u003e2000 ppm NaCl (sodium chloride)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Temperature\u003c\/td\u003e\n\u003ctd\u003e77°F (25°C) rated\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eApplied Pressure\u003c\/td\u003e\n\u003ctd\u003e225 psig (15.5 bar)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRecovery Rate\u003c\/td\u003e\n\u003ctd\u003e8% per element\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFlow Variance\u003c\/td\u003e\n\u003ctd\u003e±20% per individual element\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMembrane Type\u003c\/td\u003e\n\u003ctd\u003eThin-film composite polyamide\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\"\u003eIdeal Use Cases\u003c\/h2\u003e\n\u003cp\u003eThe TW30-2521 membrane is designed specifically for small commercial reverse osmosis systems processing municipal tap water or well water with low to moderate TDS levels. Common applications include coffee shops, restaurants, small-scale beverage production, laboratories, medical offices, and aquarium systems requiring high-purity water at flow rates under 1 GPM. This membrane fits standard 2.5-inch housings and integrates seamlessly with Filmtec-compatible commercial RO systems. The compact 21-inch length makes it suitable for space-constrained installations while maintaining the proven performance and longevity Dow Filmtec membranes are known for across commercial water treatment industries.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"pro-tip\"\u003e\n💧 Individual membrane elements may vary ±20% from nominal flow rates due to manufacturing tolerances. Always size your RO system based on conservative flow estimates, and note that Filmtec periodically updates specifications for product improvement—verify current data sheets for critical applications.\n\u003c\/div\u003e\n\n\u003c\/div\u003e","brand":"Filmtec","offers":[{"title":"Default Title","offer_id":35470200111266,"sku":"MM-2521-300","price":482.56,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0446\/7677\/6098\/files\/product-5536633192610-padded.jpg?v=1777262240"},{"product_id":"filmtec-tw30-2540-tap-water-membrane-850-gpd-2-5-x-40","title":"Filmtec (TW30-2540) Tap Water Membrane 850 GPD 2.5\" X 40\"","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 Filmtec TW30-2540 is a commercial-grade reverse osmosis membrane delivering 850 gallons per day at 99.5% salt rejection, engineered for reliable tap water purification in systems requiring one or two elements per housing. This 2.5\" x 40\" tape-wrapped element offers the widest cleaning pH range (1-13) in the industry, ensuring long-term performance and maximum contaminant removal.\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\"\u003ePerformance \u0026amp; Dimensions\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\"\u003e850 GPD\u003c\/div\u003e\n\u003cdiv class=\"sc-note\"\u003e3.2 m³\/day nominal\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"spec-card\"\u003e\n\u003cdiv class=\"sc-label\"\u003eSalt Rejection\u003c\/div\u003e\n\u003cdiv class=\"sc-value\"\u003e99.5%\u003c\/div\u003e\n\u003cdiv class=\"sc-note\"\u003eStabilized rate\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"spec-card\"\u003e\n\u003cdiv class=\"sc-label\"\u003eElement Size\u003c\/div\u003e\n\u003cdiv class=\"sc-value\"\u003e2.5\" x 40\"\u003c\/div\u003e\n\u003cdiv class=\"sc-note\"\u003eTape-wrapped\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"spec-card\"\u003e\n\u003cdiv class=\"sc-label\"\u003eActive Area\u003c\/div\u003e\n\u003cdiv class=\"sc-value\"\u003e28 ft²\u003c\/div\u003e\n\u003cdiv class=\"sc-note\"\u003e2.6 m² membrane surface\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"spec-card\"\u003e\n\u003cdiv class=\"sc-label\"\u003eCleaning Range\u003c\/div\u003e\n\u003cdiv class=\"sc-value\"\u003epH 1-13\u003c\/div\u003e\n\u003cdiv class=\"sc-note\"\u003eWidest in industry\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"spec-card\"\u003e\n\u003cdiv class=\"sc-label\"\u003eElement Type\u003c\/div\u003e\n\u003cdiv class=\"sc-value\"\u003eTW30\u003c\/div\u003e\n\u003cdiv class=\"sc-note\"\u003eThin-film composite\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\"\u003eOperating Parameters\u003c\/h2\u003e\n\u003ctable class=\"specs-table\"\u003e\n\u003ctr\u003e\n\u003ctd\u003eModel Number\u003c\/td\u003e\n\u003ctd\u003eTW30-2540\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTest Pressure\u003c\/td\u003e\n\u003ctd\u003e225 psig (15.5 bar)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTest Temperature\u003c\/td\u003e\n\u003ctd\u003e77°F (25°C)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTest Solution\u003c\/td\u003e\n\u003ctd\u003e2000 ppm NaCl\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRecovery Rate\u003c\/td\u003e\n\u003ctd\u003e15% (test conditions)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFlow Variance\u003c\/td\u003e\n\u003ctd\u003e±20% per element\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eConstruction\u003c\/td\u003e\n\u003ctd\u003eTape-wrapped (no hard outer shell)\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\"\u003eIdeal Use Cases\u003c\/h2\u003e\n\u003cp\u003eThe Filmtec TW30-2540 membrane is designed for commercial tap water applications where one or two elements per housing are sufficient. Its tape-wrapped construction eliminates the hard outer shell found in industrial elements, reducing cost while maintaining the same high-quality membrane materials. Ideal for small commercial reverse osmosis systems, water stores, light industrial applications, and any installation requiring reliable, high-purity water production from municipal tap water sources. The element's wide pH cleaning tolerance allows for aggressive chemical cleaning when needed, extending membrane life and maintaining consistent performance over time.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"pro-tip\"\u003e\n💧 Individual membrane flow rates can vary by up to 20% from nominal specifications. Always size your system with this tolerance in mind, and remember that colder water temperatures will reduce permeate flow while increasing rejection rates.\n\u003c\/div\u003e\n\n\u003c\/div\u003e","brand":"Filmtec","offers":[{"title":"Default Title","offer_id":35470200340642,"sku":"TW30-2540","price":475.6,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0446\/7677\/6098\/files\/product-5536633356450-padded.jpg?v=1777262243"},{"product_id":"filmtec-tw30-4014-tap-water-membrane-525-gpd-4x14","title":"Filmtec (TW30-4014) Tap Water Membrane 525 GPD @ 4\"X14\"","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\"\u003eFilmtec Commercial Membrane\u003c\/div\u003e\n\u003ch2\u003eTW30-4014 Tap Water Membrane\u003cbr\u003e\u003cem\u003e525 GPD @ 4\"×14\"\u003c\/em\u003e\n\u003c\/h2\u003e\n\u003cp class=\"ro-tagline\"\u003eHigh-rejection commercial RO membrane engineered for small-scale tap water purification systems requiring up to one gallon per minute of product water\u003c\/p\u003e\n\u003cdiv class=\"ro-badges\"\u003e\n\u003cspan class=\"ro-badge\"\u003e525 GPD\u003c\/span\u003e\n\u003cspan class=\"ro-badge\"\u003e99.5% Rejection\u003c\/span\u003e\n\u003cspan class=\"ro-badge\"\u003e4\" × 14\"\u003c\/span\u003e\n\u003cspan class=\"ro-badge\"\u003e20 ft² Active Area\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 thin-film composite technology for consistent commercial 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\u003e99.5% Salt Rejection\u003c\/h3\u003e\n\u003cp\u003eStabilized rejection rate removes dissolved solids from tap water feeds, delivering consistent product water quality for commercial applications\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\u003e525 GPD Output\u003c\/h3\u003e\n\u003cp\u003eProduces up to 1.99 m³\/day at test conditions (2000 ppm NaCl, 225 psig, 77°F, 5% recovery), ideal for small commercial 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\u003eCompact 4\" × 14\" Form\u003c\/h3\u003e\n\u003cp\u003e20 ft² of active membrane surface area in a space-efficient format fits tight installations without sacrificing filtration capacity\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\u003eLow Energy Operation\u003c\/h3\u003e\n\u003cp\u003eFilmtec TW30 chemistry delivers industry-leading permeate flow at lower operating pressures, reducing energy costs over the membrane lifespan\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\u003eLong Service Life\u003c\/h3\u003e\n\u003cp\u003eDurable composite construction withstands continuous operation in tap water applications, providing reliable performance and lower replacement frequency\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\"\u003eRated Performance\u003c\/h3\u003e\n\u003ctable class=\"specs-table\"\u003e\n\u003ctr\u003e\n\u003ctd\u003eModel Number\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003eTW30-4014\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003e4 inches × 14 inches\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eActive Surface Area\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003e20 ft² (1.9 m²)\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePermeate Flow Rate\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003e525 GPD (1.99 m³\/d)\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eStabilized Salt Rejection\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003e99.5%\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTest Conditions\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003e2000 ppm NaCl, 225 psig, 77°F, 5% recovery\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFlow Variance\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003e±20% per element\u003c\/strong\u003e\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 Requirements\u003c\/h3\u003e\n\u003cp\u003eThe Filmtec TW30-4014 membrane fits standard 4-inch diameter housings designed for 14-inch elements. Compatible with commercial reverse osmosis systems rated for tap water feed sources processing less than one gallon per minute of permeate. Requires 4\" × 14\" membrane housing with proper end caps and brine seal. Suitable for small commercial applications including food service, beverage preparation, laboratory use, and light industrial purification. Verify housing pressure rating matches or exceeds 225 psi operating pressure.\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\"\u003e12-24 Months\u003c\/div\u003e\n\u003ch4\u003eTypical Membrane Life\u003c\/h4\u003e\n\u003cp\u003eReplace the TW30-4014 membrane when permeate flow drops below acceptable levels or salt rejection decreases. Actual lifespan depends on feed water quality, pretreatment effectiveness, and operating hours\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"schedule-card\"\u003e\n\u003cdiv class=\"interval\"\u003eMonthly\u003c\/div\u003e\n\u003ch4\u003ePerformance Monitoring\u003c\/h4\u003e\n\u003cp\u003eTrack permeate TDS, flow rate, and feed pressure monthly to detect fouling or scaling. Early detection allows chemical cleaning before permanent damage occurs\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"schedule-card\"\u003e\n\u003cdiv class=\"interval\"\u003eAs Needed\u003c\/div\u003e\n\u003ch4\u003eChemical Cleaning\u003c\/h4\u003e\n\u003cp\u003eClean the membrane when normalized flow drops 10% or salt passage increases 10%. Follow Filmtec cleaning guidelines using approved chemicals for the specific foulant type\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"schedule-card\"\u003e\n\u003cdiv class=\"interval\"\u003eContinuous\u003c\/div\u003e\n\u003ch4\u003ePretreatment Maintenance\u003c\/h4\u003e\n\u003cp\u003eMaintain sediment filters and carbon pretreatment upstream of the membrane. Proper pretreatment protects the TW30-4014 from premature fouling and extends service life\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\u003eCommercial Grade\u003c\/h4\u003e\n\u003cp\u003eEngineered for continuous-duty applications in demanding commercial environments\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 Chemistry\u003c\/h4\u003e\n\u003cp\u003eFilmtec TW30 thin-film composite delivers consistent rejection across operating conditions\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\u003eHigh flow at lower pressure reduces energy consumption and pump wear over time\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"benefit-item\"\u003e\n\u003cdiv class=\"bi-icon\"\u003e📊\u003c\/div\u003e\n\u003ch4\u003ePredictable Performance\u003c\/h4\u003e\n\u003cp\u003eDetailed specifications and test data enable accurate system design and performance modeling\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003c\/div\u003e","brand":"Filmtec","offers":[{"title":"Default Title","offer_id":35470200471714,"sku":"TW30-4014","price":675.12,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0446\/7677\/6098\/files\/product-5536633487522-padded.jpg?v=1777262246"},{"product_id":"filmtec-tw30-4021-tap-water-membrane-900-gpd-4x21","title":"Filmtec (TW30-4021) Tap Water Membrane 900 GPD @ 4\"X21\"","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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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-hero\"\u003e\n\u003cdiv class=\"ro-eyebrow\"\u003eFilmtec Commercial RO Membrane\u003c\/div\u003e\n\u003ch2\u003e\n\u003cem\u003eTW30-4021\u003c\/em\u003e Tap Water Membrane 900 GPD\u003c\/h2\u003e\n\u003cdiv class=\"ro-tagline\"\u003eHigh-rejection 4\"×21\" commercial membrane for tap water applications delivering 99.5% stabilized salt rejection\u003c\/div\u003e\n\u003cdiv class=\"ro-badges\"\u003e\n\u003cspan class=\"ro-badge\"\u003e✓ 900 GPD permeate flow\u003c\/span\u003e\n\u003cspan class=\"ro-badge\"\u003e✓ 99.5% salt rejection\u003c\/span\u003e\n\u003cspan class=\"ro-badge\"\u003e✓ 36 ft² active surface area\u003c\/span\u003e\n\u003cspan class=\"ro-badge\"\u003e✓ 4\"×21\" form factor\u003c\/span\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"ro-callout\"\u003e\n\u003cp\u003eThe Filmtec TW30-4021 is engineered for small commercial reverse osmosis systems purifying less than one gallon per minute. With \u003cstrong\u003e36 ft² of active membrane surface area\u003c\/strong\u003e and \u003cstrong\u003e99.5% stabilized salt rejection\u003c\/strong\u003e, this membrane delivers consistent performance at \u003cstrong\u003e900 GPD nominal flow\u003c\/strong\u003e when processing standard tap water sources.\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\"\u003eBuilt for Commercial Tap Water Purification\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\u003eHigh Permeate Flow\u003c\/h3\u003e\n\u003cp\u003e900 GPD nominal flow rate tested at 2000 ppm NaCl, 225 psi, 77°F, 8% recovery conditions\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\u003eSuperior Salt Rejection\u003c\/h3\u003e\n\u003cp\u003e99.5% stabilized salt rejection delivers consistently high-quality permeate for commercial applications\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\u003eCompact 4\"×21\" Design\u003c\/h3\u003e\n\u003cp\u003eStandard 4-inch diameter, 21-inch length fits small commercial housings with 36 ft² active surface area\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\u003eLow Energy Operation\u003c\/h3\u003e\n\u003cp\u003eOptimized for tap water feedstreams, delivering lowest energy costs in its class\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\u003eLong Service Life\u003c\/h3\u003e\n\u003cp\u003eFilmtec's proven thin-film composite construction provides industry-leading reliability and performance\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\u003eApplication-Specific\u003c\/h3\u003e\n\u003cp\u003eDesigned specifically for tap water sources in systems producing less than one gallon per minute\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\"\u003eSmall Commercial RO Systems\u003c\/h3\u003e\n\u003cp\u003eThe Filmtec TW30-4021 membrane is designed for small commercial reverse osmosis systems processing municipal tap water or similar low-TDS sources. Compatible with standard 4-inch membrane housings rated for 21-inch elements. Ideal for restaurants, laboratories, small manufacturing facilities, beverage preparation, and point-of-use commercial water purification where permeate demand is under 1 GPM. Individual element performance may vary ±20% from nominal specifications.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"ro-callout\"\u003e\n\u003cp\u003eFilmtec membranes have set the standard for commercial reverse osmosis performance for decades, delivering the highest quality permeate water with the longest service life in the industry.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003c\/div\u003e","brand":"Filmtec","offers":[{"title":"Default Title","offer_id":35470200602786,"sku":"TW30-4021","price":450.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0446\/7677\/6098\/files\/product-5536633618594-padded.jpg?v=1777262254"},{"product_id":"filmtec-tw30-4040-tap-water-membrane-2-400-gpd-4-x-40","title":"Filmtec (TW30-4040) Tap Water Membrane 2,400 GPD @ 4\" X 40\"","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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.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 Filmtec TW30-4040 is the industry standard commercial reverse osmosis membrane, delivering 2,400 gallons per day with 99.5% salt rejection in a proven 4\" x 40\" format. Built with a robust 34 mil feed spacer and cleanable across pH 1-13, this tape-wrapped element offers the same high-quality membrane technology as Dow's industrial line at a price point suited for smaller commercial installations.\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\"\u003eFilmtec TW30-4040 Technical Details\u003c\/h2\u003e\n\u003ctable class=\"specs-table\"\u003e\n\u003ctr\u003e\n\u003ctd\u003eModel Number\u003c\/td\u003e\n\u003ctd\u003eTW30-4040\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003e4 inches × 40 inches\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eActive Membrane Area\u003c\/td\u003e\n\u003ctd\u003e78 ft² (7.2 m²)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePermeate Flow Rate\u003c\/td\u003e\n\u003ctd\u003e2,400 GPD (9.1 m³\/d)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSalt Rejection\u003c\/td\u003e\n\u003ctd\u003e99.5% (stabilized)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFeed Spacer Thickness\u003c\/td\u003e\n\u003ctd\u003e34 mil (thickest in class)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003epH Cleaning Range\u003c\/td\u003e\n\u003ctd\u003e1-13\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTest Conditions\u003c\/td\u003e\n\u003ctd\u003e2000 ppm NaCl, 225 psi, 77°F, 15% recovery\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\"\u003eInstalling Your TW30-4040 Membrane\u003c\/h2\u003e\n\u003col class=\"install-steps\"\u003e\n\u003cli\u003eFlush the RO housing thoroughly with clean water before inserting the membrane element to remove any manufacturing debris or contaminants.\u003c\/li\u003e\n\u003cli\u003eLubricate the brine seal and o-rings with clean water or glycerin, then slide the Filmtec TW30-4040 membrane into the pressure vessel with the brine seal end facing the concentrate port.\u003c\/li\u003e\n\u003cli\u003eInstall end caps per your housing manufacturer's instructions, ensuring proper seal compression to prevent bypass.\u003c\/li\u003e\n\u003cli\u003eStart system at low pressure and gradually increase to operating pressure over 30-60 seconds, then flush permeate to drain for the first 30 minutes of operation.\u003c\/li\u003e\n\u003cli\u003eMonitor initial permeate TDS and flow rate, allowing 24-48 hours for the membrane to fully stabilize before making performance adjustments.\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 \u0026amp; Applications\u003c\/h2\u003e\n\u003cp\u003eThe Filmtec TW30-4040 is designed for tap water and low-fouling municipal feed sources with SDI less than 5. Compatible with standard 4-inch commercial housings rated for up to 300 psi, this membrane works in single or dual-element configurations for restaurants, offices, light industrial, aquarium systems, and other commercial applications requiring high-purity water. Not recommended for high-fouling water, brackish well water with elevated TDS, or seawater applications without consulting Dow's technical guidelines. Individual element flow may vary ±20% from nominal specifications.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"pro-tip\"\u003e\n🔧 \u003cstrong\u003ePro Tip:\u003c\/strong\u003e The 34 mil feed spacer makes the TW30-4040 more forgiving than thin-channel membranes, but don't skip proper pretreatment. A 5-micron sediment filter and carbon block upstream will dramatically extend membrane life and maintain that 99.5% rejection rate between cleanings.\n\u003c\/div\u003e\n\n\u003c\/div\u003e","brand":"Filmtec","offers":[{"title":"Default Title","offer_id":35470200733858,"sku":"TW30 PRO 4040","price":449.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0446\/7677\/6098\/files\/product-5536633815202-padded.jpg?v=1777262265"},{"product_id":"filmtec-xle-2521-low-energy-membrane-365-gpd-2-5x21","title":"Filmtec (XLE-2521) Low Energy Membrane 365 GPD 2.5\"X21\"","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 \u003cdiv class=\"ro-callout\"\u003e\n The Filmtec XLE-2521 delivers 365 GPD of purified water at the lowest operating pressure in the industry, reducing energy costs and extending component life in small commercial RO systems. This 2.5\" x 21\" low energy membrane achieves 99.0% salt rejection while operating at pressures lower than standard elements, making it ideal for installations where energy efficiency matters.\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\"\u003eFilmtec XLE-2521 Technical Details\u003c\/h2\u003e\n \u003ctable class=\"specs-table\"\u003e\n \u003ctr\u003e\n \u003ctd\u003eModel Number\u003c\/td\u003e\n \u003ctd\u003eXLE-2521\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003ctd\u003eDimensions\u003c\/td\u003e\n \u003ctd\u003e2.5\" diameter x 21\" length\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003ctd\u003ePermeate Flow Rate\u003c\/td\u003e\n \u003ctd\u003e365 GPD (1.38 m³\/d)\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003ctd\u003eActive Surface Area\u003c\/td\u003e\n \u003ctd\u003e13 ft² (1.2 m²)\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003ctd\u003eSalt Rejection\u003c\/td\u003e\n \u003ctd\u003e99.0% stabilized\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003ctd\u003eOperating Pressure\u003c\/td\u003e\n \u003ctd\u003e100 psig (6.9 bar) nominal\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003ctd\u003eTest Conditions\u003c\/td\u003e\n \u003ctd\u003e500 ppm NaCl, 77°F (25°C), 8% recovery\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003ctd\u003eFlow Variance\u003c\/td\u003e\n \u003ctd\u003e±20% per element\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\"\u003eInstalling the XLE-2521 Membrane\u003c\/h2\u003e\n \u003col class=\"install-steps\"\u003e\n \u003cli\u003eEnsure the membrane housing is clean and free of debris before inserting the XLE-2521 element into a compatible 2.5\" x 21\" pressure vessel.\u003c\/li\u003e\n \u003cli\u003eInstall the membrane with the brine seal oriented correctly, ensuring proper seating against the end cap to prevent bypass flow.\u003c\/li\u003e\n \u003cli\u003eFlush the system at low pressure for 30-60 minutes after installation to remove preservatives and allow the membrane to stabilize before bringing to full operating pressure.\u003c\/li\u003e\n \u003cli\u003eMonitor permeate flow and TDS during the first 48 hours of operation, as new membranes typically stabilize within this period.\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 Filmtec XLE-2521 fits standard 2.5\" x 21\" commercial RO housings and is designed for small commercial systems processing less than one gallon per minute of purified water. This extra low energy element works best with tap water feed sources and is compatible with systems using lower cost pumps and components due to its reduced pressure requirements. Suitable for applications including beverage preparation, light food service, small laboratory use, and other commercial settings requiring consistent high-purity water production.\u003c\/p\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"pro-tip\"\u003e\n 🔧 The XLE-2521's low energy design means you can often reduce operating pressure by 15-20% compared to standard membranes while maintaining the same permeate flow, which translates to measurable energy savings and longer pump life in continuous-duty commercial installations.\n \u003c\/div\u003e\n\u003c\/div\u003e","brand":"Filmtec","offers":[{"title":"Default Title","offer_id":35470200832162,"sku":"XLE-2521","price":445.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0446\/7677\/6098\/files\/product-5536633913506-padded.jpg?v=1777262283"},{"product_id":"filmtec-xle-2540-low-energy-membrane-850-gpd-2-5-x-40","title":"Filmtec (XLE-2540) Low Energy Membrane 850 GPD 2.5\" X 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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 Filmtec XLE-2540 Low Energy Membrane delivers 850 GPD of high-purity water at the lowest operating pressure in its class, reducing energy costs without compromising performance. This 2.5\" x 40\" commercial RO membrane is tape-wrapped for economical installation in single or dual-element housings, offering the same high-quality construction as industrial hard-shell elements.\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\"\u003eFilmtec XLE-2540 Technical Details\u003c\/h2\u003e\n\u003ctable class=\"specs-table\"\u003e\n\u003ctr\u003e\n\u003ctd\u003eModel Number\u003c\/td\u003e\n\u003ctd\u003eXLE-2540\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003e2.5\" diameter x 40\" length\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePermeate Flow Rate\u003c\/td\u003e\n\u003ctd\u003e850 GPD (3.2 m³\/d)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSalt Rejection\u003c\/td\u003e\n\u003ctd\u003e99.0% (stabilized)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eActive Surface Area\u003c\/td\u003e\n\u003ctd\u003e28 ft² (2.6 m²)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Pressure\u003c\/td\u003e\n\u003ctd\u003e100 psig (6.9 bar) nominal\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003epH Cleaning Range\u003c\/td\u003e\n\u003ctd\u003e1-13 (widest range available)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eConstruction\u003c\/td\u003e\n\u003ctd\u003eTape-wrapped (no hard shell)\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\"\u003eInstalling Your XLE-2540 Membrane\u003c\/h2\u003e\n\u003col class=\"install-steps\"\u003e\n\u003cli\u003eRemove the membrane housing end cap and carefully slide out any existing membrane element, noting the flow direction indicator.\u003c\/li\u003e\n\u003cli\u003eLubricate the new XLE-2540 membrane O-rings with clean water or compatible lubricant, then insert the membrane into the housing with the brine seal facing the feed water inlet.\u003c\/li\u003e\n\u003cli\u003eHand-tighten the end cap, ensuring proper seal alignment, then slowly pressurize the system and check for leaks before running a full flush cycle (discard permeate for the first 30-60 minutes).\u003c\/li\u003e\n\u003cli\u003eMonitor initial permeate quality and flow rate, allowing 24-48 hours for the membrane to stabilize and reach specified performance levels.\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 Filmtec XLE-2540 is designed for commercial tap water applications with 500 ppm TDS or less, operating at 100 psig feed pressure with 8% recovery. Compatible with standard 2.5\" x 40\" membrane housings used in light commercial and small-scale industrial RO systems. This low-energy membrane is ideal for applications where reducing operating pressure and energy consumption is a priority, delivering maximum productivity with minimal power requirements. Test conditions: 500 ppm NaCl, 77°F, 100 psig. Individual element flow rates may vary ±20% from nominal specifications.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"pro-tip\"\u003e\n🔧 \u003cstrong\u003ePro tip:\u003c\/strong\u003e The XLE-2540's tape-wrapped design means no rigid outer shell to protect the membrane during handling. Always support the element along its full length when installing or removing it, and never lift or carry by one end alone to prevent internal damage to the membrane leaves.\n\u003c\/div\u003e\n\n\u003c\/div\u003e","brand":"Filmtec","offers":[{"title":"Default Title","offer_id":35470200996002,"sku":"XLE-2540","price":347.91,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0446\/7677\/6098\/files\/product-5536634142882-padded.jpg?v=1777262286"},{"product_id":"filmtec-xle-4021-low-energy-membrane-1025-gpd-4-x-21","title":"Filmtec (XLE-4021) Low Energy Membrane 1025 GPD 4\" X 21\"","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\n\u003cdiv class=\"ro-hero\"\u003e\n\u003cdiv class=\"ro-eyebrow\"\u003eDow Filmtec Commercial RO Membrane\u003c\/div\u003e\n\u003ch2\u003e\n\u003cem\u003eFilmtec XLE-4021\u003c\/em\u003e Low Energy Membrane\u003c\/h2\u003e\n\u003cdiv class=\"ro-tagline\"\u003e1025 GPD capacity at industry-leading low pressure operation for commercial tap water applications\u003c\/div\u003e\n\u003cdiv class=\"ro-badges\"\u003e\n\u003cspan class=\"ro-badge\"\u003e✓ Extra Low Energy Design\u003c\/span\u003e\n\u003cspan class=\"ro-badge\"\u003e✓ 99.0% Salt Rejection\u003c\/span\u003e\n\u003cspan class=\"ro-badge\"\u003e✓ 4\" x 21\" Format\u003c\/span\u003e\n\u003cspan class=\"ro-badge\"\u003e✓ 36 sq ft Active Area\u003c\/span\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"ro-callout\"\u003e\n\u003cp\u003eThe Filmtec XLE-4021 is engineered for commercial systems requiring up to \u003cstrong\u003e1025 gallons per day\u003c\/strong\u003e at the lowest operating pressure in the industry. With \u003cstrong\u003e36 square feet of active membrane area\u003c\/strong\u003e and \u003cstrong\u003e99.0% stabilized salt rejection\u003c\/strong\u003e, this 4\" x 21\" element reduces energy costs while delivering consistent purification performance for tap water feeds.\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\"\u003eEngineered for Efficiency and Reliability\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\u003eExtra Low Energy Operation\u003c\/h3\u003e\n\u003cp\u003eOperates at lower pressure than standard membranes, reducing energy consumption and allowing use of lower-cost system components without sacrificing output.\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\u003e1025 GPD Capacity\u003c\/h3\u003e\n\u003cp\u003eRated at 1025 gallons per day (3.9 m³\/d) under test conditions of 500 ppm NaCl, 100 psig, 77°F, and 8% recovery for small commercial applications.\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\u003e99.0% Salt Rejection\u003c\/h3\u003e\n\u003cp\u003eStabilized salt rejection of 99.0% removes dissolved solids, contaminants, and impurities to produce high-quality purified water consistently.\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\u003eCompact 4\" x 21\" Design\u003c\/h3\u003e\n\u003cp\u003eStandard commercial format with 36 square feet (3.3 m²) of active membrane area fits a wide range of housings and system configurations.\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\u003eProven Filmtec Technology\u003c\/h3\u003e\n\u003cp\u003eBacked by Dow's industry-leading membrane technology, delivering the longest lasting and most reliable performance in commercial RO applications.\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\u003eLower Total Cost of Ownership\u003c\/h3\u003e\n\u003cp\u003eReduced energy requirements, extended membrane life, and compatibility with lower-cost components translate to measurable operational savings.\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\"\u003eCommercial Tap Water Systems\u003c\/h3\u003e\n\u003cp\u003eThe Filmtec XLE-4021 membrane is designed for small commercial reverse osmosis systems purifying less than one gallon per minute from municipal tap water sources. Ideal for cafes, restaurants, laboratories, small manufacturing operations, and offices requiring reliable purified water. Compatible with standard 4-inch commercial housings. Individual element permeate flow rates may vary +\/-20% from nominal specifications.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"ro-callout\"\u003e\n\u003cp\u003eFilmtec membranes are manufactured by Dow and represent decades of membrane research and commercial deployment worldwide.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003c\/div\u003e","brand":"Filmtec","offers":[{"title":"Default Title","offer_id":35470201094306,"sku":"XLE-4021","price":475.31,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0446\/7677\/6098\/files\/product-5536634241186-padded.jpg?v=1777262288"},{"product_id":"filmtec-xle-4040-low-energy-membrane-2-600-gpd-4-x-40","title":"Filmtec (XLE PRO 4040) Low Energy Membrane 2,600 GPD 4\" X 40\"","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 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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 \u003cdiv class=\"ro-callout\"\u003e\n The Filmtec XLE PRO 4040 delivers 2,600 gallons per day at the lowest operating pressure of any commercial RO membrane, reducing energy costs while maintaining 99% salt rejection. Built with industrial-grade membranes in a tape-wrapped configuration, this 4\" x 40\" element offers exceptional value for commercial systems with one or two membrane housings.\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\"\u003eFilmtec XLE PRO 4040 Technical Data\u003c\/h2\u003e\n \u003ctable class=\"specs-table\"\u003e\n \u003ctr\u003e\n \u003ctd\u003eModel Number\u003c\/td\u003e\n \u003ctd\u003eXLE PRO 4040\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003ctd\u003eDimensions\u003c\/td\u003e\n \u003ctd\u003e4 inches x 40 inches\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003ctd\u003ePermeate Flow Rate\u003c\/td\u003e\n \u003ctd\u003e2,600 GPD (9.8 m³\/d)\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003ctd\u003eActive Surface Area\u003c\/td\u003e\n \u003ctd\u003e87 ft² (8.1 m²)\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003ctd\u003eSalt Rejection\u003c\/td\u003e\n \u003ctd\u003e99.0% stabilized\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003ctd\u003eOperating Pressure\u003c\/td\u003e\n \u003ctd\u003e100 psig (6.9 bar) nominal\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003ctd\u003eTest Conditions\u003c\/td\u003e\n \u003ctd\u003e500 ppm NaCl, 77°F, 8% recovery\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003ctd\u003eCleaning pH Range\u003c\/td\u003e\n \u003ctd\u003epH 1-13\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\"\u003eInstalling the XLE PRO 4040 Membrane\u003c\/h2\u003e\n \u003col class=\"install-steps\"\u003e\n \u003cli\u003eVerify your membrane housing is designed for 4\" x 40\" elements and rated for at least 100 psig operating pressure before installation.\u003c\/li\u003e\n \u003cli\u003eRemove protective caps from the membrane and slide into housing with brine seal end first, ensuring the seal seats properly against the housing endcap.\u003c\/li\u003e\n \u003cli\u003eFlush the membrane at low pressure (less than 60 psig) for 30-60 minutes, discarding all permeate, before bringing system to full operating pressure.\u003c\/li\u003e\n \u003cli\u003eMonitor TDS readings during initial startup, as performance stabilizes over the first 24-48 hours of operation.\u003c\/li\u003e\n \u003cli\u003eClean the membrane when normalized permeate flow decreases by 10% or normalized salt passage increases by 10%, using pH 1-13 compatible cleaning solutions as needed.\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 Filmtec XLE PRO 4040 membrane is designed for commercial tap water applications and fits standard 4-inch diameter membrane housings with 40-inch length capacity. This low-energy element performs optimally with feed water containing up to 500 ppm TDS and is compatible with most commercial RO systems requiring one or two membrane elements per vessel. The tape-wrapped construction makes it ideal for smaller commercial installations where the cost savings over hard-shell elements provide better value. Individual element flow rates may vary +\/-20% from nominal specifications.\u003c\/p\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"pro-tip\"\u003e\n 🔧 \u003cstrong\u003ePro tip:\u003c\/strong\u003e The XLE PRO 4040's low-energy design means you can often downsize your feed pump or reduce operating pressure compared to standard membranes, cutting energy costs by 20-30% while maintaining the same permeate output. Just ensure your system controller and pressure settings are adjusted accordingly to prevent over-pressurizing this high-efficiency element.\n \u003c\/div\u003e\n\u003c\/div\u003e","brand":"Filmtec","offers":[{"title":"Default Title","offer_id":35470201913506,"sku":"XLE PRO-4040","price":571.25,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0446\/7677\/6098\/files\/product-5536634437794-padded.jpg?v=1777262280"},{"product_id":"filmtec-bw30-2540-brackish-water-membrane-850-gpd-2-5-x-40","title":"Filmtec (BW30-2540) Brackish Water Membrane 850 GPD 2.5\" x 40\"","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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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\"\u003eFilmtec BW30-2540\u003c\/div\u003e\n \u003ch2\u003eBrackish Water RO Membrane 850 GPD\u003c\/h2\u003e\n \u003cdiv class=\"ro-tagline\"\u003eCommercial-grade 2.5\" x 40\" reverse osmosis element engineered for light industrial brackish water systems under 1 GPM\u003c\/div\u003e\n \u003cdiv class=\"ro-badges\"\u003e\n \u003cspan class=\"ro-badge\"\u003e850 GPD Capacity\u003c\/span\u003e\n \u003cspan class=\"ro-badge\"\u003e99.5% Salt Rejection\u003c\/span\u003e\n \u003cspan class=\"ro-badge\"\u003eHard Shell Design\u003c\/span\u003e\n \u003cspan class=\"ro-badge\"\u003epH 1-13 Cleanable\u003c\/span\u003e\n \u003c\/div\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"ro-callout\"\u003e\n \u003cp\u003eThe Filmtec BW30-2540 delivers consistent performance in compact commercial systems where space and flow requirements favor a 2.5\" diameter element. Its hard shell exterior provides structural integrity in multi-element housings with three or more membranes, withstanding higher pressure drops than standard wound configurations.\u003c\/p\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"ro-section\"\u003e\n \u003cdiv class=\"ro-label\"\u003eTECHNICAL SPECIFICATIONS\u003c\/div\u003e\n \u003ch3 class=\"ro-title\"\u003ePerformance Data\u003c\/h3\u003e\n \u003ctable class=\"specs-table\"\u003e\n \u003ctr\u003e\n \u003ctd class=\"specs-label\"\u003eMembrane Type\u003c\/td\u003e\n \u003ctd class=\"specs-value\"\u003eThin-Film Composite (TFC) Polyamide\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003ctd class=\"specs-label\"\u003eDimensions\u003c\/td\u003e\n \u003ctd class=\"specs-value\"\u003e2.5\" diameter × 40\" length\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003ctd class=\"specs-label\"\u003eActive Surface Area\u003c\/td\u003e\n \u003ctd class=\"specs-value\"\u003e28 ft² (2.6 m²)\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003ctd class=\"specs-label\"\u003ePermeate Flow Rate\u003c\/td\u003e\n \u003ctd class=\"specs-value\"\u003e850 GPD (3.2 m³\/d)\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003ctd class=\"specs-label\"\u003eSalt Rejection\u003c\/td\u003e\n \u003ctd class=\"specs-value\"\u003e99.5% (stabilized)\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003ctd class=\"specs-label\"\u003eTest Conditions\u003c\/td\u003e\n \u003ctd class=\"specs-value\"\u003e2000 ppm NaCl, 225 psig, 77°F, 15% recovery\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003ctd class=\"specs-label\"\u003eOperating pH Range\u003c\/td\u003e\n \u003ctd class=\"specs-value\"\u003epH 2-11 (continuous)\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003ctd class=\"specs-label\"\u003eCleaning pH Range\u003c\/td\u003e\n \u003ctd class=\"specs-value\"\u003epH 1-13\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003ctd class=\"specs-label\"\u003eConstruction\u003c\/td\u003e\n \u003ctd class=\"specs-value\"\u003eHard shell exterior (fiberglass)\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003ctd class=\"specs-label\"\u003eFlow Tolerance\u003c\/td\u003e\n \u003ctd class=\"specs-value\"\u003e±20% per element\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 Requirements\u003c\/h3\u003e\n \u003cp\u003eThe BW30-2540 is designed for light industrial and commercial brackish water RO systems with flow requirements under 1 GPM. Requires a 2.5\" × 40\" membrane housing with appropriate end caps and brine seal assembly. Hard shell construction makes this element ideal for multi-element vessels containing three or more membranes, where internal pressure differentials demand greater structural strength than standard tape-wrapped elements. Compatible with all Filmtec-specified cleaning protocols across the full pH 1-13 range. Verify feed water chemistry and operating pressures match test conditions (225 psig, 2000 ppm TDS) for rated performance. Not intended for seawater desalination applications.\u003c\/p\u003e\n \u003c\/div\u003e\n\u003c\/div\u003e","brand":"Filmtec","offers":[{"title":"Default Title","offer_id":35470202175650,"sku":"BW30-2540","price":285.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0446\/7677\/6098\/files\/product-5536634536098-padded.jpg?v=1777262175"},{"product_id":"filmtec-bw30-4040-brackish-water-membrane-2-400-gpd-4x40","title":"Filmtec (BW30-4040) Brackish Water Membrane 2,400 GPD 4\"X40\"","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\"\u003eDow Filmtec BW30-4040\u003c\/div\u003e\n \u003ch2\u003eIndustry-Standard Brackish Water RO Membrane\u003c\/h2\u003e\n \u003cp class=\"ro-tagline\"\u003eHigh-flow commercial reverse osmosis membrane element with 2,400 GPD capacity and 99.5% salt rejection for light industrial and commercial applications\u003c\/p\u003e\n \u003cdiv class=\"ro-badges\"\u003e\n \u003cspan class=\"ro-badge\"\u003e2,400 GPD @ 225 PSI\u003c\/span\u003e\n \u003cspan class=\"ro-badge\"\u003e99.5% Rejection\u003c\/span\u003e\n \u003cspan class=\"ro-badge\"\u003e4\" × 40\"\u003c\/span\u003e\n \u003cspan class=\"ro-badge\"\u003epH 1-13 Cleanable\u003c\/span\u003e\n \u003c\/div\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"ro-callout\"\u003e\n \u003cp\u003eThe Filmtec BW30-4040 has been the commercial brackish water standard for decades because it delivers consistent performance where it matters most. With 78 square feet of active membrane area and the industry's thickest feed spacer at 34 mil, this element resists fouling better than thin-channel alternatives while maintaining high rejection rates across a wide range of feedwater conditions.\u003c\/p\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"ro-section\"\u003e\n \u003cdiv class=\"ro-label\"\u003eTECHNICAL SPECIFICATIONS\u003c\/div\u003e\n \u003ch3 class=\"ro-title\"\u003ePerformance Data\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\u003eBW30-4040\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003ctd\u003e\u003cstrong\u003eDimensions\u003c\/strong\u003e\u003c\/td\u003e\n \u003ctd\u003e4 inches × 40 inches\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003ctd\u003e\u003cstrong\u003eActive Surface Area\u003c\/strong\u003e\u003c\/td\u003e\n \u003ctd\u003e78 ft² (7.2 m²)\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003ctd\u003e\u003cstrong\u003ePermeate Flow Rate\u003c\/strong\u003e\u003c\/td\u003e\n \u003ctd\u003e2,400 GPD (9.1 m³\/d)\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003ctd\u003e\u003cstrong\u003eSalt Rejection\u003c\/strong\u003e\u003c\/td\u003e\n \u003ctd\u003e99.5% stabilized\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003ctd\u003e\u003cstrong\u003eTest Conditions\u003c\/strong\u003e\u003c\/td\u003e\n \u003ctd\u003e2,000 ppm NaCl, 225 psig, 77°F, 15% recovery\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003ctd\u003e\u003cstrong\u003eFeed Spacer Thickness\u003c\/strong\u003e\u003c\/td\u003e\n \u003ctd\u003e34 mil (thickest in industry)\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003ctd\u003e\u003cstrong\u003eCleaning pH Range\u003c\/strong\u003e\u003c\/td\u003e\n \u003ctd\u003epH 1–13\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003ctd\u003e\u003cstrong\u003eShell Type\u003c\/strong\u003e\u003c\/td\u003e\n \u003ctd\u003eHard shell exterior\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003ctd\u003e\u003cstrong\u003eFlow Variance\u003c\/strong\u003e\u003c\/td\u003e\n \u003ctd\u003e±20% per element\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\"\u003eAPPLICATION\u003c\/div\u003e\n \u003ch3 class=\"ro-title\"\u003eWhat It Does Best\u003c\/h3\u003e\n \u003cp\u003eThe BW30-4040 is engineered for brackish water applications where feedwater TDS ranges from 500 to 10,000 ppm. The 34 mil feed spacer creates wider channels that tolerate higher particulate loads and reduce pressure drop, which means longer run times between cleanings in real-world conditions. Hard shell construction makes this element ideal for multi-element vessels with three or more membranes, where pressure differentials can stress thinner housings. Use it in light industrial RO systems, commercial drinking water applications, boiler feedwater prep, and process water treatment where consistent permeate quality and predictable operating costs matter more than cutting corners on components.\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\"\u003eSystem Requirements\u003c\/h3\u003e\n \u003cp\u003eRequires standard 4-inch diameter pressure vessels rated for at least 300 psi. Compatible with all standard 4040 membrane housings and multi-element configurations. Pair with 5-micron or finer sediment prefiltration to protect membrane surface. Feedwater should be pretreated to remove chlorine, iron, manganese, and hardness above saturation limits. Works with most commercial RO system controllers and monitoring equipment. Element fits Codeline, Pentair, Hydranautics, and other manufacturer vessels designed for 4-inch by 40-inch elements.\u003c\/p\u003e\n \u003c\/div\u003e\n\u003c\/div\u003e","brand":"Filmtec","offers":[{"title":"Default Title","offer_id":35470204338338,"sku":"BW30-4040","price":374.98,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0446\/7677\/6098\/files\/product-5536634765474-padded.jpg?v=1777262187"},{"product_id":"filmtec-bw30le-4040-brackish-water-low-energy-membrane-2-500-gpd-4-x-40","title":"Filmtec (BW30LE-4040) Brackish Water Low Energy Membrane 2,500 GPD 4 \"X 40\"","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\"\u003eFilmtec Commercial RO Membrane\u003c\/div\u003e\n\u003ch2\u003eFilmtec \u003cem\u003eBW30LE-4040\u003c\/em\u003e Brackish Water Low Energy Membrane\u003c\/h2\u003e\n\u003cdiv class=\"ro-tagline\"\u003e2,500 GPD high-performance brackish water membrane engineered for lowest operating pressure and maximum energy efficiency in light industrial reverse osmosis systems\u003c\/div\u003e\n\u003cdiv class=\"ro-badges\"\u003e\n\u003cspan class=\"ro-badge\"\u003e4\" x 40\"\u003c\/span\u003e\n\u003cspan class=\"ro-badge\"\u003e99.0% Rejection\u003c\/span\u003e\n\u003cspan class=\"ro-badge\"\u003e78 ft² Active Area\u003c\/span\u003e\n\u003cspan class=\"ro-badge\"\u003eLow Energy\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\"\u003eDesigned for brackish water applications where energy costs matter\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\u003eLow Energy Design\u003c\/h3\u003e\n\u003cp\u003eThe BW30LE-4040 operates at significantly lower pressures than standard membranes, reducing energy consumption and operating costs while maintaining 2,500 GPD permeate flow at just 150 psi\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\u003e99.0% Salt Rejection\u003c\/h3\u003e\n\u003cp\u003eStabilized rejection rate removes dissolved salts, minerals, and contaminants from brackish water sources at 2000 ppm NaCl feed concentration with 15% recovery rate\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\u003eHard Shell Construction\u003c\/h3\u003e\n\u003cp\u003eBuilt with reinforced exterior designed for multi-element pressure vessels containing three or more membranes, withstanding higher pressure drops in commercial arrays\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\u003e78 ft² Active Surface\u003c\/h3\u003e\n\u003cp\u003eMaximum membrane surface area in a 4\" x 40\" element format provides consistent performance in light industrial brackish water RO systems with optimal flow characteristics\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\u003eFilmtec Quality Standard\u003c\/h3\u003e\n\u003cp\u003eDow Filmtec engineering delivers reliable, tested performance in commercial brackish water applications. Previously designated as BW30LE-4040, same proven membrane technology\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\"\u003eTested performance parameters\u003c\/h3\u003e\n\u003cdiv class=\"specs-table\"\u003e\n\u003cdiv class=\"spec-row\"\u003e\n\u003cspan class=\"spec-label\"\u003eModel Number\u003c\/span\u003e\n\u003cspan class=\"spec-value\"\u003eBW30LE-4040 (formerly BW30LE-4040)\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"spec-row\"\u003e\n\u003cspan class=\"spec-label\"\u003eDimensions\u003c\/span\u003e\n\u003cspan class=\"spec-value\"\u003e4 inches x 40 inches\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"spec-row\"\u003e\n\u003cspan class=\"spec-label\"\u003eActive Surface Area\u003c\/span\u003e\n\u003cspan class=\"spec-value\"\u003e78 ft² (7.2 m²)\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"spec-row\"\u003e\n\u003cspan class=\"spec-label\"\u003ePermeate Flow Rate\u003c\/span\u003e\n\u003cspan class=\"spec-value\"\u003e2,500 GPD (9.5 m³\/d)\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"spec-row\"\u003e\n\u003cspan class=\"spec-label\"\u003eSalt Rejection\u003c\/span\u003e\n\u003cspan class=\"spec-value\"\u003e99.0% stabilized\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"spec-row\"\u003e\n\u003cspan class=\"spec-label\"\u003eOperating Pressure\u003c\/span\u003e\n\u003cspan class=\"spec-value\"\u003e150 psi (10.3 bar)\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"spec-row\"\u003e\n\u003cspan class=\"spec-label\"\u003eTest Conditions\u003c\/span\u003e\n\u003cspan class=\"spec-value\"\u003e2000 ppm NaCl, 77°F (25°C), 15% recovery\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"spec-row\"\u003e\n\u003cspan class=\"spec-label\"\u003eApplication Type\u003c\/span\u003e\n\u003cspan class=\"spec-value\"\u003eBrackish water, light industrial\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"spec-row\"\u003e\n\u003cspan class=\"spec-label\"\u003eConstruction\u003c\/span\u003e\n\u003cspan class=\"spec-value\"\u003eHard shell exterior for multi-element vessels\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\"\u003eCOMPATIBILITY\u003c\/div\u003e\n\u003ch3 class=\"ro-title\"\u003eSystem integration\u003c\/h3\u003e\n\u003cp\u003eThe Filmtec BW30LE-4040 membrane fits standard 4-inch commercial reverse osmosis housings designed for 40-inch elements. Recommended for multi-element pressure vessels with three or more membranes due to hard shell construction. Compatible with brackish water RO systems operating at 2000 ppm feed TDS or lower. Individual element performance may vary +\/-20% from nominal specifications. Ensure system design accounts for 150 psi operating pressure and 15% recovery rate for optimal performance.\u003c\/p\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\u003eLower Energy Costs\u003c\/h4\u003e\n\u003cp\u003eReduced operating pressure means lower pump energy requirements and decreased long-term operational expenses\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"benefit-item\"\u003e\n\u003cdiv class=\"bi-icon\"\u003e🔧\u003c\/div\u003e\n\u003ch4\u003eCommercial Durability\u003c\/h4\u003e\n\u003cp\u003eHard shell design withstands demanding multi-element configurations in light industrial applications\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 Technology\u003c\/h4\u003e\n\u003cp\u003eDow Filmtec membranes deliver consistent performance backed by decades of reverse osmosis engineering expertise\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"benefit-item\"\u003e\n\u003cdiv class=\"bi-icon\"\u003e📊\u003c\/div\u003e\n\u003ch4\u003ePredictable Output\u003c\/h4\u003e\n\u003cp\u003eStabilized 99.0% salt rejection with 2,500 GPD flow rate at specified test conditions for reliable system design\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003c\/div\u003e","brand":"Filmtec","offers":[{"title":"Default Title","offer_id":35470204436642,"sku":"BWLE30-4040","price":514.72,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0446\/7677\/6098\/files\/product-5536634863778-padded.jpg?v=1777262191"},{"product_id":"filmtec-bw30-365-brackish-water-membrane-9-500-gpd-8x40","title":"Filmtec (BW30PRO-365) Brackish Water Membrane 9,500 GPD 8\"X40\"","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 Filmtec BW30PRO-365 is a commercial-grade 8\"×40\" brackish water reverse osmosis membrane delivering 9,500 GPD with 99.5% salt rejection, engineered for challenging feed streams where durability and cleanability are non-negotiable. With 365 ft² of active surface area and the industry's thickest 34-mil feed spacer, this element withstands difficult conditions and supports the widest cleaning pH range (1-13) for maximum operational longevity.\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\"\u003eFilmtec BW30PRO-365 Core Specs\u003c\/h2\u003e\n\u003cdiv class=\"spec-cards\"\u003e\n\u003cdiv class=\"spec-card\"\u003e\n\u003cdiv class=\"sc-label\"\u003eActive Area\u003c\/div\u003e\n\u003cdiv class=\"sc-value\"\u003e365 ft²\u003c\/div\u003e\n\u003cdiv class=\"sc-note\"\u003e34 m² nominal\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"spec-card\"\u003e\n\u003cdiv class=\"sc-label\"\u003eFlow Rate\u003c\/div\u003e\n\u003cdiv class=\"sc-value\"\u003e9,500 GPD\u003c\/div\u003e\n\u003cdiv class=\"sc-note\"\u003e36 m³\/day stabilized\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"spec-card\"\u003e\n\u003cdiv class=\"sc-label\"\u003eSalt Rejection\u003c\/div\u003e\n\u003cdiv class=\"sc-value\"\u003e99.5%\u003c\/div\u003e\n\u003cdiv class=\"sc-note\"\u003e99.0% minimum\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"spec-card\"\u003e\n\u003cdiv class=\"sc-label\"\u003eDimensions\u003c\/div\u003e\n\u003cdiv class=\"sc-value\"\u003e8\" × 40\"\u003c\/div\u003e\n\u003cdiv class=\"sc-note\"\u003eCommercial format\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"spec-card\"\u003e\n\u003cdiv class=\"sc-label\"\u003eFeed Spacer\u003c\/div\u003e\n\u003cdiv class=\"sc-value\"\u003e34 mil\u003c\/div\u003e\n\u003cdiv class=\"sc-note\"\u003eIndustry thickest\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"spec-card\"\u003e\n\u003cdiv class=\"sc-label\"\u003eCleaning pH\u003c\/div\u003e\n\u003cdiv class=\"sc-value\"\u003epH 1–13\u003c\/div\u003e\n\u003cdiv class=\"sc-note\"\u003eWidest range\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\"\u003eOperating Parameters \u0026amp; Test Conditions\u003c\/h2\u003e\n\u003ctable class=\"specs-table\"\u003e\n\u003ctr\u003e\n\u003ctd\u003eModel Number\u003c\/td\u003e\n\u003ctd\u003eBW30PRO-365 (formerly BW30-365)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eManufacturer\u003c\/td\u003e\n\u003ctd\u003eDow Filmtec (DuPont Water Solutions)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eStandard Test Conditions\u003c\/td\u003e\n\u003ctd\u003e2000 ppm NaCl, 225 psi, 77°F (25°C), pH 8, 15% recovery\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFlow Rate Tolerance\u003c\/td\u003e\n\u003ctd\u003eIndividual elements may vary -15% from nominal\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eActive Area Guarantee\u003c\/td\u003e\n\u003ctd\u003e±3% (measured per Form No. 609-00434)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eApplication Type\u003c\/td\u003e\n\u003ctd\u003eBrackish water, difficult feed streams, commercial\/industrial RO\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eKey Advantage\u003c\/td\u003e\n\u003ctd\u003eMaximum cleanability and robustness for challenging 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\"\u003eIdeal Use Cases\u003c\/h2\u003e\n\u003cp\u003e\nThe BW30PRO-365 membrane is the element of choice for system designers, OEMs, and operators managing brackish water systems with variable or difficult feed quality. Its 34-mil feed spacer reduces fouling impact when pretreatment is inconsistent or unavailable, and the extreme pH tolerance (1-13) enables aggressive cleaning protocols that extend element life in high-fouling environments. This 8\"×40\" format fits standard commercial pressure vessels and is best suited for applications where uptime, durability, and total cost of ownership matter more than initial unit price. Compatible with Dow Filmtec housings and most third-party 8-inch commercial RO systems treating brackish groundwater, industrial process water, and municipal supplies.\n\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"pro-tip\"\u003e\n💧 \u003cstrong\u003ePro Tip:\u003c\/strong\u003e The BW30PRO-365's wide cleaning pH range is its superpower. When other membranes require replacement due to irreversible fouling, this element can often be restored with aggressive low- or high-pH cleanings, significantly extending service life in challenging applications.\n\u003c\/div\u003e\n\n\u003c\/div\u003e","brand":"Filmtec","offers":[{"title":"Default Title","offer_id":35470204600482,"sku":"MM-BW30-365","price":1499.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0446\/7677\/6098\/files\/product-5536634994850-padded.jpg?v=1777262194"},{"product_id":"filmtec-bw30-400-brackish-water-membrane-10-500-gpd-8x40","title":"Filmtec (BW30-400) Brackish Water Membrane 10,500 GPD 8\"X40\"","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\n\u003cdiv class=\"ro-hero\"\u003e\n\u003cdiv class=\"ro-eyebrow\"\u003eDow Filmtec Commercial Membrane\u003c\/div\u003e\n\u003ch2\u003e\n\u003cem\u003eBW30-400\u003c\/em\u003e Brackish Water RO Membrane\u003c\/h2\u003e\n\u003cdiv class=\"ro-tagline\"\u003eIndustry-standard 8\"×40\" element delivering 10,500 GPD with 99.5% salt rejection for commercial and industrial brackish water systems\u003c\/div\u003e\n\u003cdiv class=\"ro-badges\"\u003e\n\u003cspan class=\"ro-badge\"\u003e✓ 400 sq ft active area\u003c\/span\u003e\n\u003cspan class=\"ro-badge\"\u003e✓ pH 1-13 cleaning range\u003c\/span\u003e\n\u003cspan class=\"ro-badge\"\u003e✓ Non-chlorinated manufacturing\u003c\/span\u003e\n\u003cspan class=\"ro-badge\"\u003e✓ Decade-proven performance\u003c\/span\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"ro-callout\"\u003e\n\u003cp\u003eThe BW30-400 was the first 400 square foot membrane element on the market and remains the reference standard for high-rejection brackish water applications. With \u003cstrong\u003e10,500 GPD permeate flow\u003c\/strong\u003e, \u003cstrong\u003e99.5% stabilized salt rejection\u003c\/strong\u003e, and superior durability, this element delivers consistent performance in new installations and retrofits where capital cost and productivity matter.\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\"\u003eEngineered for reliability and performance\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\u003eSuperior Manufacturing\u003c\/h3\u003e\n\u003cp\u003eFully automated production ensures element-to-element consistency and year-over-year reliability that other membranes can't match\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\u003eHigh Flow, High Rejection\u003c\/h3\u003e\n\u003cp\u003eDelivers 10,500 GPD at 99.5% salt rejection without sacrificing durability or requiring chlorination during manufacturing\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\u003eWide pH Cleaning Range\u003c\/h3\u003e\n\u003cp\u003eClean from pH 1 to pH 13 without damaging the membrane, giving you more flexibility and longer service life than competitor elements\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\u003e400 Sq Ft Active Area\u003c\/h3\u003e\n\u003cp\u003eTrue active area guaranteed within 3%, measured using Filmtec's documented method, not inflated nominal ratings\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\u003eRetrofit Compatible\u003c\/h3\u003e\n\u003cp\u003eStandard 8\"×40\" configuration fits existing pressure vessels in commercial and industrial brackish water 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\u003eProven Track Record\u003c\/h3\u003e\n\u003cp\u003eMore than a decade of field performance across thousands of installations worldwide in diverse water 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\"\u003eTECHNICAL SPECIFICATIONS\u003c\/div\u003e\n\u003ch3 class=\"ro-title\"\u003ePerformance data and ratings\u003c\/h3\u003e\n\u003cdiv class=\"specs-table\"\u003e\n\u003cdiv class=\"spec-row\"\u003e\n\u003cspan class=\"spec-key\"\u003eModel Number\u003c\/span\u003e\n\u003cspan class=\"spec-value\"\u003eBW30-400\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"spec-row\"\u003e\n\u003cspan class=\"spec-key\"\u003eConfiguration\u003c\/span\u003e\n\u003cspan class=\"spec-value\"\u003e8 inch diameter × 40 inch length\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"spec-row\"\u003e\n\u003cspan class=\"spec-key\"\u003eActive Membrane Area\u003c\/span\u003e\n\u003cspan class=\"spec-value\"\u003e400 ft² (37 m²) guaranteed ±3%\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"spec-row\"\u003e\n\u003cspan class=\"spec-key\"\u003ePermeate Flow Rate\u003c\/span\u003e\n\u003cspan class=\"spec-value\"\u003e10,500 GPD (40 m³\/d)\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"spec-row\"\u003e\n\u003cspan class=\"spec-key\"\u003eStabilized Salt Rejection\u003c\/span\u003e\n\u003cspan class=\"spec-value\"\u003e99.5% typical\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"spec-row\"\u003e\n\u003cspan class=\"spec-key\"\u003eMinimum Salt Rejection\u003c\/span\u003e\n\u003cspan class=\"spec-value\"\u003e99.0% guaranteed\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"spec-row\"\u003e\n\u003cspan class=\"spec-key\"\u003eTest Conditions\u003c\/span\u003e\n\u003cspan class=\"spec-value\"\u003e2000 ppm NaCl, 225 psi, 77°F, pH 8, 15% recovery\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"spec-row\"\u003e\n\u003cspan class=\"spec-key\"\u003eCleaning pH Range\u003c\/span\u003e\n\u003cspan class=\"spec-value\"\u003epH 1 - 13\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"spec-row\"\u003e\n\u003cspan class=\"spec-key\"\u003eFlow Tolerance\u003c\/span\u003e\n\u003cspan class=\"spec-value\"\u003eNo more than 15% below rated value\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\"\u003eCOMPATIBILITY \u0026amp; APPLICATIONS\u003c\/div\u003e\n\u003ch3 class=\"ro-title\"\u003eWhere this membrane fits\u003c\/h3\u003e\n\u003cp\u003eThe Filmtec BW30-400 is designed for commercial and industrial reverse osmosis systems treating brackish water sources including well water, surface water, and municipal supplies with elevated TDS. Compatible with standard 8-inch pressure vessels rated for 40-inch elements. Ideal for applications requiring maximum permeate quality including food and beverage processing, pharmaceutical manufacturing, boiler feedwater pretreatment, and high-purity rinse water systems. This element is widely specified by OEMs and system integrators for new builds and as a retrofit upgrade for older systems using lower-performing membranes.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"ro-callout\"\u003e\n\u003cp\u003eFilmtec's automated manufacturing and non-chlorinated process deliver membranes that perform as specified, clean more effectively, and last longer than alternatives. This is the element you specify when reliability matters.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003c\/div\u003e","brand":"Filmtec","offers":[{"title":"Default Title","offer_id":35470204731554,"sku":"mm-bw30-400","price":978.89,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0446\/7677\/6098\/files\/product-5536635125922-padded.jpg?v=1777262179"},{"product_id":"filmtec-nf90-2540-nano-filtration-membrane-700-gpd-2-5x40","title":"Filmtec (NF90-2540) NANO Filtration Membrane 700 GPD 2.5\"X40\"","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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!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\n The Filmtec NF90-2540 nanofiltration membrane delivers 700 GPD of high-purity water while removing salts, nitrates, pesticides, and THM precursors at significantly lower operating pressures than standard RO membranes. Built for commercial applications requiring efficient organic compound removal, this 2.5\"x40\" element provides 28 square feet of active membrane area with stabilized rejection rates above 97%.\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\"\u003eFilmtec NF90-2540 Technical Data\u003c\/h2\u003e\n \u003ctable class=\"specs-table\"\u003e\n \u003ctr\u003e\n \u003ctd\u003eModel Number\u003c\/td\u003e\n \u003ctd\u003eNF90-2540\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003ctd\u003eDimensions\u003c\/td\u003e\n \u003ctd\u003e2.5\" x 40\"\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003ctd\u003ePermeate Flow Rate\u003c\/td\u003e\n \u003ctd\u003e680-700 GPD (2.6 m³\/d)\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003ctd\u003eActive Surface Area\u003c\/td\u003e\n \u003ctd\u003e28 ft² (2.6 m²)\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003ctd\u003eSalt Rejection Rate\u003c\/td\u003e\n \u003ctd\u003e\u0026gt;97% (MgSO₄)\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003ctd\u003eOperating Pressure\u003c\/td\u003e\n \u003ctd\u003e70 psi (4.8 bar)\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003ctd\u003eTest Conditions\u003c\/td\u003e\n \u003ctd\u003e2000 ppm MgSO₄, 77°F, 15% recovery\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003ctd\u003eApplication Class\u003c\/td\u003e\n \u003ctd\u003eCommercial Nanofiltration\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\"\u003eMembrane Installation Protocol\u003c\/h2\u003e\n \u003col class=\"install-steps\"\u003e\n \u003cli\u003eInspect the membrane element for shipping damage and verify the brine seal is intact and properly seated before installation into a 2.5\" commercial housing.\u003c\/li\u003e\n \u003cli\u003eInsert the NF90-2540 element into the pressure vessel with the feed direction matching system flow, ensuring the brine seal engages fully with the housing endcap.\u003c\/li\u003e\n \u003cli\u003eFlush the system at low pressure (25-30 psi) for 30-60 minutes to remove preservatives, then gradually increase to operating pressure while monitoring permeate TDS.\u003c\/li\u003e\n \u003cli\u003eAdjust system recovery rate to 15% or lower as specified for optimal rejection performance and membrane longevity in your specific water chemistry.\u003c\/li\u003e\n \u003cli\u003eMonitor differential pressure across the element and schedule cleaning when pressure drop increases by 10-15% over baseline readings.\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 Filmtec NF90-2540 membrane fits standard 2.5\" x 40\" commercial pressure vessels and is designed for systems treating municipal or well water containing pesticides, herbicides, THM precursors, and moderate hardness. This nanofiltration element operates at significantly lower pressures than brackish RO membranes, making it ideal for applications where organic compound removal is required without complete demineralization. Compatible with most commercial NF system configurations rated for 70 psi operating pressure and 680-700 GPD capacity. Individual element flow rates may vary -20% to +30% from nominal specifications based on actual feed water conditions and system design.\u003c\/p\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"pro-tip\"\u003e\n 🔧 \u003cstrong\u003ePro tip:\u003c\/strong\u003e Nanofiltration membranes like the NF90 soften water and remove organics while leaving some beneficial minerals in the permeate. If you're seeing higher than expected TDS in product water, verify you're operating at the correct 15% recovery rate—pushing recovery too high will compromise rejection performance.\n \u003c\/div\u003e\n\n\u003c\/div\u003e","brand":"Filmtec","offers":[{"title":"Default Title","offer_id":35470205026466,"sku":"MM-NAN700","price":582.35,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0446\/7677\/6098\/files\/product-5536635486370-padded.jpg?v=1777262208"},{"product_id":"filmtec-nf270-2540-nano-filtration-membrane-850-gpd-2-5x40","title":"Filmtec (NF270-2540) NANO Filtration Membrane 850 GPD 2.5\"X40\"","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 !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 Filmtec NF270-2540 nanofiltration membrane delivers 850 gallons per day of high-quality permeate with excellent organic removal and partial softening in a compact 2.5\" x 40\" element. Engineered for surface water and groundwater treatment, this commercial-grade membrane removes over 97% of magnesium sulfate while allowing controlled salt passage for applications requiring TOC and THM precursor reduction without full desalination.\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\"\u003eFilmtec NF270-2540 Core Specs\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\"\u003e850 GPD\u003c\/div\u003e\n\u003cdiv class=\"sc-note\"\u003e3.2 m³\/day nominal\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\"\u003eNanofiltration\u003c\/div\u003e\n\u003cdiv class=\"sc-note\"\u003eNF270 chemistry\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"spec-card\"\u003e\n\u003cdiv class=\"sc-label\"\u003eDimensions\u003c\/div\u003e\n\u003cdiv class=\"sc-value\"\u003e2.5\" × 40\"\u003c\/div\u003e\n\u003cdiv class=\"sc-note\"\u003eStandard commercial\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"spec-card\"\u003e\n\u003cdiv class=\"sc-label\"\u003eActive Area\u003c\/div\u003e\n\u003cdiv class=\"sc-value\"\u003e28 ft²\u003c\/div\u003e\n\u003cdiv class=\"sc-note\"\u003e2.6 m² surface\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"spec-card\"\u003e\n\u003cdiv class=\"sc-label\"\u003eSalt Rejection\u003c\/div\u003e\n\u003cdiv class=\"sc-value\"\u003e\u0026gt;97%\u003c\/div\u003e\n\u003cdiv class=\"sc-note\"\u003eMgSO₄ basis\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\"\u003eCommercial\u003c\/div\u003e\n\u003cdiv class=\"sc-note\"\u003eSurface \u0026amp; groundwater\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\"\u003ePerformance Parameters\u003c\/h2\u003e\n\u003ctable class=\"specs-table\"\u003e\n\u003ctr\u003e\n\u003ctd\u003eModel Number\u003c\/td\u003e\n\u003ctd\u003eFILMTEC NF270-2540\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePermeate Flow Rate\u003c\/td\u003e\n\u003ctd\u003e850 gpd (3.2 m³\/d) nominal, individual elements may vary -20%\/+30%\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eStabilized Salt Rejection\u003c\/td\u003e\n\u003ctd\u003e\u0026gt;97.0% (based on 2000 ppm MgSO₄)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTest Conditions\u003c\/td\u003e\n\u003ctd\u003e2000 ppm magnesium sulfate, 77°F (25°C), 15% recovery at 70 psi (4.8 bar)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eActive Membrane Area\u003c\/td\u003e\n\u003ctd\u003e28 ft² (2.6 m²)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eElement Dimensions\u003c\/td\u003e\n\u003ctd\u003e2.5 inches × 40 inches\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct Status\u003c\/td\u003e\n\u003ctd\u003eDevelopmental product available for sale\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\"\u003eIdeal Use Cases\u003c\/h2\u003e\n\u003cp\u003eThe Filmtec NF270-2540 nanofiltration membrane is specifically designed for commercial water treatment applications where high organic removal is required with partial softening rather than full desalination. This membrane excels at removing total organic carbon (TOC) and trihalomethane (THM) precursors from surface water and groundwater sources while allowing medium to high salt passage and medium hardness passage. The NF270 chemistry strikes a balance between organic rejection and mineral passage, making it an efficient choice for potable water production, food and beverage processing, and industrial applications where complete demineralization is not desired. Compatible with standard 2.5-inch commercial membrane housings rated for nanofiltration operating pressures.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"pro-tip\"\u003e\n💧 \u003cstrong\u003ePro Tip:\u003c\/strong\u003e Nanofiltration membranes like the NF270 operate at lower pressures than traditional RO membranes while still removing organics and divalent ions, which translates to lower energy costs and longer membrane life when treating water sources where full desalination is not required.\n\u003c\/div\u003e\n\n\u003c\/div\u003e","brand":"Filmtec","offers":[{"title":"Default Title","offer_id":35470205124770,"sku":"NF270-2540","price":757.16,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0446\/7677\/6098\/files\/product-5536635650210-padded.jpg?v=1777262205"},{"product_id":"filmtec-nf90-4040-nano-filtration-membrane-2-200-gpd-4-x-40","title":"Filmtec (NF90-4040) NANO Filtration Membrane 2,200 GPD 4\" X 40\"","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 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.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 !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\"\u003eFilmtec Commercial Nanofiltration\u003c\/div\u003e\n \u003ch2\u003eFilmtec \u003cem\u003eNF90-4040\u003c\/em\u003e Nanofiltration Membrane\u003c\/h2\u003e\n \u003cdiv class=\"ro-tagline\"\u003eHigh-performance nanofiltration for commercial applications requiring selective separation of salts, organics, and hardness at lower operating pressures than standard RO membranes\u003c\/div\u003e\n \u003cdiv class=\"ro-badges\"\u003e\n \u003cspan class=\"stage-tag\"\u003eNANOFILTRATION\u003c\/span\u003e\n \u003cspan class=\"stage-tag\"\u003eCOMMERCIAL\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\"\u003eSelective separation at lower operating pressures\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\u003eLow-Pressure Operation\u003c\/h3\u003e\n \u003cp\u003eThe NF90-4040 operates efficiently at 70 psi, significantly lower than standard RO membranes, reducing energy costs and extending pump life in commercial installations\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\u003eSelective Rejection\u003c\/h3\u003e\n \u003cp\u003eRemoves over 97% of magnesium sulfate while allowing beneficial minerals to pass through. Targets pesticides, herbicides, THM precursors, nitrates, and iron without complete demineralization\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\u003e2,200 GPD Capacity\u003c\/h3\u003e\n \u003cp\u003e82 square feet of active membrane surface area delivers up to 2,200 gallons per day at test conditions, suitable for restaurants, small manufacturing, and agricultural applications\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\u003eOrganic Removal\u003c\/h3\u003e\n \u003cp\u003eEffectively removes low-molecular-weight organic compounds including agricultural chemicals and disinfection byproduct precursors that affect taste and safety\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\u003eCommercial Construction\u003c\/h3\u003e\n \u003cp\u003e4\" x 40\" industry-standard form factor fits existing commercial housings. Dow Filmtec manufacturing ensures consistent performance and membrane longevity under continuous operation\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\"\u003eTECHNICAL SPECIFICATIONS\u003c\/div\u003e\n \u003ch3 class=\"ro-title\"\u003eRated performance and operating parameters\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\"\u003eFilmtec NF90-4040\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003ctd class=\"spec-label\"\u003eMembrane Type\u003c\/td\u003e\n \u003ctd class=\"spec-value\"\u003eNanofiltration (NF)\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003ctd class=\"spec-label\"\u003eDimensions\u003c\/td\u003e\n \u003ctd class=\"spec-value\"\u003e4 inch diameter x 40 inch length\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003ctd class=\"spec-label\"\u003eActive Surface Area\u003c\/td\u003e\n \u003ctd class=\"spec-value\"\u003e82 ft² (7.6 m²)\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003ctd class=\"spec-label\"\u003ePermeate Flow Rate\u003c\/td\u003e\n \u003ctd class=\"spec-value\"\u003e2,200 GPD (7.6 m³\/d)\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003ctd class=\"spec-label\"\u003eStabilized Salt Rejection\u003c\/td\u003e\n \u003ctd class=\"spec-value\"\u003e\u0026gt;97.0% (MgSO₄)\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003ctd class=\"spec-label\"\u003eOperating Pressure\u003c\/td\u003e\n \u003ctd class=\"spec-value\"\u003e70 psi (4.8 bar) nominal\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003ctd class=\"spec-label\"\u003eTest Conditions\u003c\/td\u003e\n \u003ctd class=\"spec-value\"\u003e2000 ppm MgSO₄, 77°F (25°C), 15% recovery\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003ctd class=\"spec-label\"\u003eFlow Variance\u003c\/td\u003e\n \u003ctd class=\"spec-value\"\u003e-15% to +50% per element\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\"\u003eHousing and system requirements\u003c\/h3\u003e\n \u003cp\u003eThe NF90-4040 nanofiltration membrane fits standard commercial 4-inch diameter membrane housings rated for 4\" x 40\" elements. Compatible with Filmtec, Pentair, Hydranautics, and other commercial RO\/NF housings using industry-standard end caps and brine seals. Requires vessel rated for minimum 100 psi working pressure. Use with commercial-grade feed pumps capable of delivering 70-90 psi feed pressure. Best performance achieved with pre-filtration including 5-micron sediment and carbon block filters to protect membrane surface from fouling.\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 commercial use\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\u003eMembrane Inspection\u003c\/h4\u003e\n \u003cp\u003eMonitor permeate flow and rejection rates. Clean membrane with approved chemicals if flow drops 10% or salt passage increases significantly\u003c\/p\u003e\n \u003c\/div\u003e\n \u003cdiv class=\"schedule-card\"\u003e\n \u003cdiv class=\"interval\"\u003eEvery 24-36 Months\u003c\/div\u003e\n \u003ch4\u003eMembrane Replacement\u003c\/h4\u003e\n \u003cp\u003eReplace the NF90-4040 element when chemical cleaning no longer restores performance, or when permeate quality cannot meet required specifications\u003c\/p\u003e\n \u003c\/div\u003e\n \u003cdiv class=\"schedule-card\"\u003e\n \u003cdiv class=\"interval\"\u003eMonthly\u003c\/div\u003e\n \u003ch4\u003ePre-Filter Service\u003c\/h4\u003e\n \u003cp\u003eReplace sediment and carbon pre-filters according to manufacturer schedules to prevent membrane fouling and extend NF90-4040 service life\u003c\/p\u003e\n \u003c\/div\u003e\n \u003cdiv class=\"schedule-card\"\u003e\n \u003cdiv class=\"interval\"\u003eQuarterly\u003c\/div\u003e\n \u003ch4\u003ePerformance Testing\u003c\/h4\u003e\n \u003cp\u003eDocument feed pressure, permeate flow, concentrate flow, and TDS readings to track membrane degradation and schedule preventive maintenance\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\u003eLower Operating Costs\u003c\/h4\u003e\n \u003cp\u003e70 psi operation reduces energy consumption compared to standard RO membranes running at 150+ psi\u003c\/p\u003e\n \u003c\/div\u003e\n \u003cdiv class=\"benefit-item\"\u003e\n \u003cdiv class=\"bi-icon\"\u003e🌱\u003c\/div\u003e\n \u003ch4\u003eTargeted Contaminant Removal\u003c\/h4\u003e\n \u003cp\u003eRemoves pesticides, herbicides, nitrates,\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"Filmtec","offers":[{"title":"Default Title","offer_id":35470205223074,"sku":"MM-NAN2200","price":792.65,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0446\/7677\/6098\/files\/product-5536635781282-padded.jpg?v=1777262212"},{"product_id":"filmtec-nf-4040-nano-filtration-membrane-6-800-gpd-8x40","title":"Filmtec (NF-4040) NANO Filtration Membrane 6,800 GPD 8\"X40\"","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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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 Filmtec NF-4040 nanofiltration membrane delivers 6,800 GPD of high-selectivity filtration in an 8\"x40\" commercial format, designed to reject organic compounds above 200 molecular weight while allowing monovalent salts to pass through. With 82 sq ft of active membrane area and stabilized rejection rates exceeding 99% for magnesium sulfate, this element handles demanding process applications including desalting, acid processing, metal recovery, and antifreeze reclamation.\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\"\u003eFilmtec NF-4040 Nanofiltration Element\u003c\/h2\u003e\n\u003cdiv class=\"spec-cards\"\u003e\n\u003cdiv class=\"spec-card\"\u003e\n\u003cdiv class=\"sc-label\"\u003ePermeate Flow\u003c\/div\u003e\n\u003cdiv class=\"sc-value\"\u003e6,800 GPD\u003c\/div\u003e\n\u003cdiv class=\"sc-note\"\u003e7.4 m³\/day nominal\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"spec-card\"\u003e\n\u003cdiv class=\"sc-label\"\u003eDimensions\u003c\/div\u003e\n\u003cdiv class=\"sc-value\"\u003e8\" × 40\"\u003c\/div\u003e\n\u003cdiv class=\"sc-note\"\u003eStandard commercial fit\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"spec-card\"\u003e\n\u003cdiv class=\"sc-label\"\u003eActive Area\u003c\/div\u003e\n\u003cdiv class=\"sc-value\"\u003e82 sq ft\u003c\/div\u003e\n\u003cdiv class=\"sc-note\"\u003e7.6 m² membrane surface\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"spec-card\"\u003e\n\u003cdiv class=\"sc-label\"\u003eSalt Rejection\u003c\/div\u003e\n\u003cdiv class=\"sc-value\"\u003e\u0026gt;99%\u003c\/div\u003e\n\u003cdiv class=\"sc-note\"\u003e98% minimum for MgSO₄\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"spec-card\"\u003e\n\u003cdiv class=\"sc-label\"\u003eRejection Cutoff\u003c\/div\u003e\n\u003cdiv class=\"sc-value\"\u003e200 MW\u003c\/div\u003e\n\u003cdiv class=\"sc-note\"\u003eOrganics molecular weight\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"spec-card\"\u003e\n\u003cdiv class=\"sc-label\"\u003eConfiguration\u003c\/div\u003e\n\u003cdiv class=\"sc-value\"\u003eSpiral Wound\u003c\/div\u003e\n\u003cdiv class=\"sc-note\"\u003eDurable element design\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\"\u003ePerformance Parameters \u0026amp; Test Conditions\u003c\/h2\u003e\n\u003ctable class=\"specs-table\"\u003e\n\u003ctr\u003e\n\u003ctd\u003eTest Pressure\u003c\/td\u003e\n\u003ctd\u003e130 psig (8.9 bar)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTest Solution\u003c\/td\u003e\n\u003ctd\u003e2000 ppm Magnesium Sulfate (MgSO₄)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Temperature\u003c\/td\u003e\n\u003ctd\u003e77°F (25°C) standard test conditions\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003epH Range\u003c\/td\u003e\n\u003ctd\u003epH 8 (test standard)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRecovery Rate\u003c\/td\u003e\n\u003ctd\u003e15% recovery at test conditions\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTarget Flow (New Element)\u003c\/td\u003e\n\u003ctd\u003e1,950 gpd (7.4 m³\/d) baseline\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eReplaces\u003c\/td\u003e\n\u003ctd\u003eFilmtec NF45 series elements\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\"\u003eWhere the NF-4040 Membrane Works\u003c\/h2\u003e\n\u003cp\u003eThe Filmtec NF-4040 nanofiltration membrane is engineered for commercial and industrial process applications requiring selective separation of dissolved solutes. It excels in desalting organic compounds, acid processing environments, metal ion recovery from waste streams, and antifreeze recovery operations. The membrane's unique selectivity allows it to reject divalent salts and larger organic molecules while permitting monovalent salts to pass, making it ideal for applications where complete desalination is not required but targeted separation is critical. Flow rates will vary based on feedwater chemistry, temperature, pressure, and specific process conditions. This element fits standard 8-inch commercial housings and is compatible with systems previously using Filmtec NF45 membranes.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"pro-tip\"\u003e\n💧 Nanofiltration membranes operate at lower pressures than RO elements and provide selective separation rather than total dissolved solids removal. Actual permeate flow on your process stream will differ from test conditions based on feed composition, temperature, and operating pressure. Filmtec periodically updates specifications for product improvement, so verify current performance data for critical applications.\n\u003c\/div\u003e\n\n\u003c\/div\u003e","brand":"Filmtec","offers":[{"title":"Default Title","offer_id":35470205321378,"sku":"MM-NF-4040","price":1375.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0446\/7677\/6098\/files\/product-5536635879586-padded.jpg?v=1777262201"},{"product_id":"filmtec-sw30-2521-seawater-membrane-300-gpd-2-5x21","title":"Filmtec (SW30-2521) Seawater Membrane 300 GPD 2.5\"X21\"","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 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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-hero\"\u003e\n\u003cdiv class=\"ro-eyebrow\"\u003eFilmtec Commercial Seawater Desalination\u003c\/div\u003e\n\u003ch2\u003e\n\u003cem\u003eFilmtec SW30-2521\u003c\/em\u003e Seawater RO Membrane\u003c\/h2\u003e\n\u003cdiv class=\"ro-tagline\"\u003e300 GPD high-rejection membrane engineered for demanding seawater desalination in commercial and marine applications\u003c\/div\u003e\n\u003cdiv class=\"ro-badges\"\u003e\n\u003cspan class=\"ro-badge\"\u003e✓ 99.4% Salt Rejection\u003c\/span\u003e\n\u003cspan class=\"ro-badge\"\u003e✓ 300 GPD at 800 PSI\u003c\/span\u003e\n\u003cspan class=\"ro-badge\"\u003e✓ 2.5\" x 21\" Format\u003c\/span\u003e\n\u003cspan class=\"ro-badge\"\u003e✓ 13 sq ft Active Area\u003c\/span\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"ro-callout\"\u003e\n\u003cp\u003eThe Filmtec SW30-2521 seawater reverse osmosis membrane delivers \u003cstrong\u003e300 gallons per day\u003c\/strong\u003e of permeate flow with \u003cstrong\u003e99.4% stabilized salt rejection\u003c\/strong\u003e from 32,000 ppm feedwater. Designed for both sea-based and land-based desalinators, this element operates efficiently at \u003cstrong\u003e800 PSI (55 bar)\u003c\/strong\u003e or can be run at lower pressures to reduce energy costs and pump requirements.\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\"\u003eBuilt for Seawater Performance\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\u003eHighest Flow Rates\u003c\/h3\u003e\n\u003cp\u003eIndustry-leading 300 GPD production from compact 2.5\" x 21\" form factor with 13 sq ft membrane area\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\u003eSuperior Salt Rejection\u003c\/h3\u003e\n\u003cp\u003e99.4% stabilized rejection against 32,000 ppm NaCl feedwater for consistent permeate quality\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\u003ePressure Flexibility\u003c\/h3\u003e\n\u003cp\u003eRated for 800 PSI operation but can run at lower pressures to reduce pump size and operating costs\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\u003ePrecision Fabrication\u003c\/h3\u003e\n\u003cp\u003eAutomated manufacturing ensures consistent element performance with flow variance of +\/-20%\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\u003eMarine \u0026amp; Land Use\u003c\/h3\u003e\n\u003cp\u003eEngineered for both offshore marine desalination and land-based seawater treatment facilities\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\u003eProven Chemistry\u003c\/h3\u003e\n\u003cp\u003eTested at 77°F with 2% recovery rate for reliable specification performance in real 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\"\u003eCommercial Seawater Systems\u003c\/h3\u003e\n\u003cp\u003eThe Filmtec SW30-2521 membrane is designed for commercial seawater reverse osmosis systems requiring 2.5-inch diameter elements. Compatible with pressure vessels rated for 800 PSI or higher, this membrane fits standard 21-inch housings. Ideal for marine vessel desalinators, offshore platform water systems, coastal industrial facilities, and land-based seawater treatment plants. Part of the Dow Filmtec SW30 commercial membrane series engineered specifically for high-salinity feedwater applications.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"ro-callout\"\u003e\n\u003cp\u003eFilmtec SW30 elements are backed by decades of desalination engineering and automated precision manufacturing for consistent, reliable seawater treatment performance.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003c\/div\u003e","brand":"Filmtec","offers":[{"title":"Default Title","offer_id":35470205583522,"sku":"SW30-2521","price":758.22,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0446\/7677\/6098\/files\/product-5536636141730-padded.jpg?v=1777262217"},{"product_id":"filmtec-sw30-2540-seawater-membrane-700-gpd-2-5x40","title":"Filmtec (SW30-2540) Seawater Membrane 700 GPD 2.5\"X40\"","description":"\n\u003clink 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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\"\u003eFilmtec Commercial Seawater Membrane\u003c\/div\u003e\n\u003ch2\u003eFilmtec \u003cem\u003eSW30-2540\u003c\/em\u003e Seawater RO Membrane\u003c\/h2\u003e\n\u003cdiv class=\"ro-tagline\"\u003eHigh-flow 700 GPD seawater desalination membrane engineered for 99.4% salt rejection at 800 PSI operating pressure\u003c\/div\u003e\n\u003cdiv class=\"ro-badges\"\u003e\n\u003cspan class=\"ro-badge\"\u003e700 GPD\u003c\/span\u003e\n\u003cspan class=\"ro-badge\"\u003e2.5\" × 40\"\u003c\/span\u003e\n\u003cspan class=\"ro-badge\"\u003e99.4% Rejection\u003c\/span\u003e\n\u003cspan class=\"ro-badge\"\u003e32,000 ppm NaCl\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 High-Salinity Desalination\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\u003eSeawater-Grade Rejection\u003c\/h3\u003e\n\u003cp\u003eFilmtec SW30 membrane delivers 99.4% salt rejection at 32,000 ppm feed concentration, purpose-built for marine and coastal desalination applications.\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 at 800 PSI\u003c\/h3\u003e\n\u003cp\u003eProduces 700 gallons per day at 800 PSI operating pressure with 29 sq ft active membrane surface area, or run at lower pressure to reduce pump 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\u003ePrecision Fabrication\u003c\/h3\u003e\n\u003cp\u003eAutomated manufacturing ensures consistent performance element to element. Individual flow rates may vary ±20% within spec tolerance.\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\u003e2.5\" Commercial Size\u003c\/h3\u003e\n\u003cp\u003eStandard 2.5\" × 40\" footprint fits commercial seawater RO housings for both land-based and sea-based desalination 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\u003eOptimized for 2% Recovery\u003c\/h3\u003e\n\u003cp\u003eTest conditions specify 2% recovery at 77°F, ideal for single-pass seawater applications where concentrate management is critical.\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\"\u003eStandard Commercial Seawater Housings\u003c\/h3\u003e\n\u003cp\u003eThe Filmtec SW30-2540 membrane fits any commercial RO housing designed for 2.5\" diameter × 40\" length membrane elements. Compatible with seawater desalination systems operating at 800 PSI with 32,000 ppm NaCl feedwater. Verify housing pressure rating and end cap compatibility before installation. Suitable for land-based municipal desalination plants, offshore platforms, marine vessels, and coastal brackish water treatment where elevated TDS requires high-pressure operation.\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\"\u003eMembrane Replacement Schedule\u003c\/h3\u003e\n\u003cdiv class=\"filter-schedule\"\u003e\n\u003cdiv class=\"schedule-card\"\u003e\n\u003cdiv class=\"interval\"\u003eEvery 3–5 Years\u003c\/div\u003e\n\u003ch4\u003eMembrane Replacement\u003c\/h4\u003e\n\u003cp\u003eReplace Filmtec SW30-2540 element when permeate flow drops 15% or salt passage increases 15% from baseline, typically 3–5 years depending on feedwater quality and cleaning frequency.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"schedule-card\"\u003e\n\u003cdiv class=\"interval\"\u003eQuarterly\u003c\/div\u003e\n\u003ch4\u003eChemical Cleaning\u003c\/h4\u003e\n\u003cp\u003eClean membrane with approved low-pH and high-pH solutions when normalized pressure drop increases 15% or normalized salt passage rises 5–10%. Proper cleaning extends membrane life.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"schedule-card\"\u003e\n\u003cdiv class=\"interval\"\u003eMonthly\u003c\/div\u003e\n\u003ch4\u003ePerformance Monitoring\u003c\/h4\u003e\n\u003cp\u003eLog permeate flow, conductivity, and pressure drop monthly. Normalize data to standard conditions to track membrane degradation and schedule cleaning before fouling becomes irreversible.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"schedule-card\"\u003e\n\u003cdiv class=\"interval\"\u003ePre-Treatment\u003c\/div\u003e\n\u003ch4\u003eUpstream Filtration\u003c\/h4\u003e\n\u003cp\u003eInstall 5-micron sediment pre-filter and check cartridge fouling before seawater reaches membrane. Proper pre-treatment prevents particulate damage and extends SW30-2540 service life.\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\u003eIndustry-Leading Flow\u003c\/h4\u003e\n\u003cp\u003eHighest GPD available in 2.5\" seawater membranes for maximum desalination capacity per housing footprint.\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\u003eOption to reduce operating pressure below 800 PSI cuts pump energy consumption while maintaining commercial flow rates.\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 Technology\u003c\/h4\u003e\n\u003cp\u003eFilmtec SW30 chemistry trusted worldwide in marine and municipal desalination for consistent 99.4% salt rejection.\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 2.5\" × 40\" dimensions fit existing commercial seawater RO housings without modification or custom fittings.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003c\/div\u003e","brand":"Filmtec","offers":[{"title":"Default Title","offer_id":35470205714594,"sku":"SW30-2540","price":541.65,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0446\/7677\/6098\/files\/product-5536636240034-padded.jpg?v=1777262220"},{"product_id":"filmtec-sw30-4021-seawater-membrane-800-gpd-4-x-21","title":"Filmtec (SW30-4021) Seawater Membrane 800 GPD 4\" X 21\"","description":"\n\u003clink 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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-hero\"\u003e\n \u003cdiv class=\"ro-eyebrow\"\u003eFilmtec SW30-4021 Seawater Membrane\u003c\/div\u003e\n \u003ch2\u003e800 GPD High-Flow Seawater Reverse Osmosis Element\u003c\/h2\u003e\n \u003cdiv class=\"ro-tagline\"\u003e4\" x 21\" commercial seawater membrane delivering 99.4% salt rejection at 800 psi for marine and land-based desalination systems\u003c\/div\u003e\n \u003cdiv class=\"ro-badges\"\u003e\n \u003cspan class=\"ro-badge\"\u003e800 GPD Flow Rate\u003c\/span\u003e\n \u003cspan class=\"ro-badge\"\u003e99.4% Salt Rejection\u003c\/span\u003e\n \u003cspan class=\"ro-badge\"\u003e33 ft² Active Area\u003c\/span\u003e\n \u003cspan class=\"ro-badge\"\u003e800 PSI Rated\u003c\/span\u003e\n \u003c\/div\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"ro-callout\"\u003e\n \u003cp\u003eThe Filmtec SW30-4021 seawater membrane is engineered for high-salinity applications where consistent performance matters. With 800 gallons per day capacity and 99.4% stabilized salt rejection from 32,000 ppm feedwater, this 4\" x 21\" element handles both sea-based and land-based desalination with lower operating pressure requirements than competing membranes.\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\"\u003eFilmtec SW30-4021 Performance Data\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\"\u003eSW30-4021\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003ctd class=\"spec-label\"\u003eDimensions\u003c\/td\u003e\n \u003ctd class=\"spec-value\"\u003e4 inches x 21 inches\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003ctd class=\"spec-label\"\u003eActive Surface Area\u003c\/td\u003e\n \u003ctd class=\"spec-value\"\u003e33 ft² (3.1 m²)\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003ctd class=\"spec-label\"\u003ePermeate Flow Rate\u003c\/td\u003e\n \u003ctd class=\"spec-value\"\u003e800 gpd (3.0 m³\/d)\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003ctd class=\"spec-label\"\u003eSalt Rejection\u003c\/td\u003e\n \u003ctd class=\"spec-value\"\u003e99.4% (stabilized)\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003ctd class=\"spec-label\"\u003eOperating Pressure\u003c\/td\u003e\n \u003ctd class=\"spec-value\"\u003e800 psi (55 bar)\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003ctd class=\"spec-label\"\u003eTest Conditions\u003c\/td\u003e\n \u003ctd class=\"spec-value\"\u003e32,000 ppm NaCl, 77°F (25°C), 2% recovery\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003ctd class=\"spec-label\"\u003eFlow Tolerance\u003c\/td\u003e\n \u003ctd class=\"spec-value\"\u003e±20% per element\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003ctd class=\"spec-label\"\u003eProduct Type\u003c\/td\u003e\n \u003ctd class=\"spec-value\"\u003eCommercial seawater RO 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\"\u003eCOMPATIBILITY\u003c\/div\u003e\n \u003ch3 class=\"ro-title\"\u003eApplication \u0026amp; System Requirements\u003c\/h3\u003e\n \u003cp\u003eThe Filmtec SW30-4021 membrane fits standard 4-inch commercial RO housings and is designed for high-salinity seawater desalination systems operating at 800 psi. This element works in both marine vessels and land-based desalination plants where 32,000 ppm or higher total dissolved solids are present. The lower pressure operation compared to earlier generation membranes allows you to reduce pump sizing and energy costs while maintaining high rejection rates. Automated precision fabrication ensures consistent performance across production batches. Note that individual membrane flow rates may vary by up to 20 percent due to manufacturing tolerances.\u003c\/p\u003e\n \u003c\/div\u003e\n\u003c\/div\u003e","brand":"Filmtec","offers":[{"title":"Default Title","offer_id":35470206206114,"sku":"SW30-4021","price":508.18,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0446\/7677\/6098\/files\/product-5536636469410-padded.jpg?v=1777262223"},{"product_id":"filmtec-sw30-4040-seawater-membrane-1-950-gpd-4-x-40","title":"Filmtec (SW30-4040) Seawater Membrane 1,950 GPD 4\" X 40\"","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 \u003cdiv class=\"ro-hero\"\u003e\n \u003cdiv class=\"ro-eyebrow\"\u003eFilmtec SW30-4040\u003c\/div\u003e\n \u003ch2\u003eSeawater RO Membrane for High-Salinity Desalination\u003c\/h2\u003e\n \u003cp class=\"ro-tagline\"\u003e1,950 GPD commercial seawater reverse osmosis element engineered for consistent performance in demanding marine and coastal applications\u003c\/p\u003e\n \u003cdiv class=\"ro-badges\"\u003e\n \u003cspan class=\"ro-badge\"\u003e99.4% Salt Rejection\u003c\/span\u003e\n \u003cspan class=\"ro-badge\"\u003e4\" × 40\" Element\u003c\/span\u003e\n \u003cspan class=\"ro-badge\"\u003e800 PSI Rated\u003c\/span\u003e\n \u003cspan class=\"ro-badge\"\u003e80 ft² Active Area\u003c\/span\u003e\n \u003c\/div\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"ro-callout\"\u003e\n \u003cp\u003eThe Filmtec SW30-4040 seawater membrane delivers 1,950 gallons per day from feedwater containing 32,000 ppm total dissolved solids, making it the workhorse element for船-based and land-based desalination systems. Automated precision fabrication ensures each element maintains stable rejection rates above 99.4%, reducing variability across multi-element arrays.\u003c\/p\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"ro-section\"\u003e\n \u003cdiv class=\"ro-label\"\u003eTECHNICAL SPECIFICATIONS\u003c\/div\u003e\n \u003ch3 class=\"ro-title\"\u003ePerformance Data \u0026amp; Operating Parameters\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\"\u003eSW30-4040\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003ctd class=\"spec-label\"\u003eDimensions\u003c\/td\u003e\n \u003ctd class=\"spec-value\"\u003e4 inches × 40 inches\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003ctd class=\"spec-label\"\u003eActive Membrane Area\u003c\/td\u003e\n \u003ctd class=\"spec-value\"\u003e80 ft² (7.4 m²)\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003ctd class=\"spec-label\"\u003ePermeate Flow Rate\u003c\/td\u003e\n \u003ctd class=\"spec-value\"\u003e1,950 GPD (7.4 m³\/day)\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003ctd class=\"spec-label\"\u003eSalt Rejection\u003c\/td\u003e\n \u003ctd class=\"spec-value\"\u003e99.4% stabilized\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003ctd class=\"spec-label\"\u003eTest Conditions\u003c\/td\u003e\n \u003ctd class=\"spec-value\"\u003e32,000 ppm NaCl, 800 psi, 77°F, 2% recovery\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003ctd class=\"spec-label\"\u003eOperating Pressure\u003c\/td\u003e\n \u003ctd class=\"spec-value\"\u003e800 psi (55 bar) maximum\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003ctd class=\"spec-label\"\u003eApplication\u003c\/td\u003e\n \u003ctd class=\"spec-value\"\u003eSeawater desalination\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003ctd class=\"spec-label\"\u003eFlow Variance\u003c\/td\u003e\n \u003ctd class=\"spec-value\"\u003e±20% per element\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 Integration \u0026amp; Housing Requirements\u003c\/h3\u003e\n \u003cp\u003eThe Filmtec SW30-4040 element fits standard 4-inch diameter commercial membrane housings designed for 40-inch elements. This seawater membrane is engineered specifically for feedwater with TDS levels between 20,000 and 45,000 ppm and requires system operating pressure of 600–800 psi to achieve rated permeate flow. Compatible with commercial desalination systems using Dow Filmtec or equivalent 4040 seawater element configurations. Lower operating pressures may be used to reduce pump requirements and energy costs while accepting proportionally reduced flow rates.\u003c\/p\u003e\n \u003c\/div\u003e\n\u003c\/div\u003e","brand":"Filmtec","offers":[{"title":"Default Title","offer_id":35470207189154,"sku":"SW30-4040","price":875.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0446\/7677\/6098\/files\/product-5536636731554-padded.jpg?v=1777262226"},{"product_id":"filmtec-sw30-8040-seawater-membrane-6-000-gpd-8-x-40","title":"Filmtec (SW30-8040) Seawater Membrane 6,000 GPD 8\" X 40\"","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 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.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\"\u003eFilmtec Seawater Reverse Osmosis\u003c\/div\u003e\n\u003ch2\u003e\n\u003cem\u003eSW30-8040\u003c\/em\u003e Commercial Seawater Membrane\u003c\/h2\u003e\n\u003cdiv class=\"ro-tagline\"\u003eHigh-flow 8\" x 40\" seawater RO element delivering 6,000 GPD at 99.4% salt rejection for demanding desalination applications\u003c\/div\u003e\n\u003cdiv class=\"ro-badges\"\u003e\n\u003cspan class=\"ro-badge\"\u003e✓ 6,000 GPD capacity\u003c\/span\u003e\n\u003cspan class=\"ro-badge\"\u003e✓ 99.4% salt rejection\u003c\/span\u003e\n\u003cspan class=\"ro-badge\"\u003e✓ 400 sq ft active area\u003c\/span\u003e\n\u003cspan class=\"ro-badge\"\u003e✓ Commercial grade\u003c\/span\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"ro-callout\"\u003e\n\u003cp\u003eThe Filmtec SW30-8040 is engineered for high-volume seawater desalination in both land-based and marine systems. With \u003cstrong\u003e400 sq ft of active membrane surface\u003c\/strong\u003e and rated output of \u003cstrong\u003e6,000 gallons per day\u003c\/strong\u003e, this element delivers industry-leading flow rates while maintaining \u003cstrong\u003e99.4% stabilized salt rejection\u003c\/strong\u003e from 32,000 ppm feedwater. Precision automated fabrication ensures consistent performance across production runs.\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\"\u003eBuilt for Seawater Desalination\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\u003eHighest Flow Rates\u003c\/h3\u003e\n\u003cp\u003e6,000 GPD output from a single 8\" x 40\" element meets the demands of large-scale sea-based and land-based desalination operations\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\u003eSuperior Salt Rejection\u003c\/h3\u003e\n\u003cp\u003e99.4% stabilized rejection at 32,000 ppm NaCl ensures consistent permeate quality even under challenging seawater conditions\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\u003eFlexible Operating Pressure\u003c\/h3\u003e\n\u003cp\u003eDesigned for 800 psig operation but can run at lower pressures to reduce pump sizing, capital costs, and energy consumption\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\u003eMaximum Active Area\u003c\/h3\u003e\n\u003cp\u003e400 sq ft (37 m²) of membrane surface maximizes contact time and productivity within the standard 8-inch diameter format\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\u003ePrecision Fabrication\u003c\/h3\u003e\n\u003cp\u003eAutomated manufacturing processes deliver the most consistent element-to-element performance available in seawater membranes\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\u003eSeawater Optimized\u003c\/h3\u003e\n\u003cp\u003eFormulated specifically for high-salinity feedwater, tested at 32,000 ppm with 2% recovery at 77°F for real-world 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\"\u003eCommercial Seawater Systems\u003c\/h3\u003e\n\u003cp\u003eThe Filmtec SW30-8040 membrane fits standard 8-inch commercial RO housings and pressure vessels rated for seawater service. Ideal for municipal desalination plants, offshore platforms, marine vessels, island water systems, and industrial seawater treatment facilities. Compatible with multi-element arrays in series or parallel configurations. Individual element permeate flow may vary +\/-20% from nominal specifications.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"ro-callout\"\u003e\n\u003cp\u003eFilmtec SW30 series membranes are trusted by desalination professionals worldwide for consistent performance in the most demanding seawater applications.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003c\/div\u003e","brand":"Filmtec","offers":[{"title":"Default Title","offer_id":35470209253538,"sku":"SW30-8040","price":1457.83,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0446\/7677\/6098\/files\/product-5536637092002-padded.jpg?v=1777262230"},{"product_id":"filmtec-tw30hp-4619-medical-application-membrane-1-450-gpd-4-6-x-19","title":"Filmtec (TW30HP-4619) Medical Application Membrane 1,450 GPD 4.6\" x 19\"","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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.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 Filmtec TW30HP-4619 is a high-performance 4.6-inch diameter reverse osmosis membrane engineered specifically for medical, dialysis, and hospital water systems where superior permeate quality is non-negotiable. Delivering 1,450 GPD at 99% stabilized salt rejection, this commercial-grade element uses proven TW30HP membrane chemistry trusted in municipal and industrial installations worldwide.\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\"\u003eFilmtec TW30HP-4619 Technical Details\u003c\/h2\u003e\n\u003ctable class=\"specs-table\"\u003e\n\u003ctr\u003e\n\u003ctd\u003eManufacturer\u003c\/td\u003e\n\u003ctd\u003eFilmtec (Dow)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eModel Number\u003c\/td\u003e\n\u003ctd\u003eTW30HP-4619\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003e4.6\" diameter x 19\" length\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePermeate Flow Rate\u003c\/td\u003e\n\u003ctd\u003e1,450 GPD (5.5 m³\/d)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eStabilized Salt Rejection\u003c\/td\u003e\n\u003ctd\u003e99.0%\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMinimum Salt Rejection\u003c\/td\u003e\n\u003ctd\u003e98.0%\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTest Conditions\u003c\/td\u003e\n\u003ctd\u003e2000 ppm NaCl, 225 psi, 77°F, pH 8, 15% recovery\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eApplication Type\u003c\/td\u003e\n\u003ctd\u003eMedical, dialysis, hospital tap water 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\"\u003eInstalling the TW30HP-4619 Membrane\u003c\/h2\u003e\n\u003col class=\"install-steps\"\u003e\n\u003cli\u003eVerify membrane vessel housing is clean and sanitized before installation, especially critical for medical applications.\u003c\/li\u003e\n\u003cli\u003eRemove protective plastic wrap from membrane and soak element if dry-shipped, following Filmtec's preparation guidelines for your system type.\u003c\/li\u003e\n\u003cli\u003eInstall membrane into 4.6\" pressure vessel with feed end facing inlet port, ensuring brine seal is properly seated to prevent permeate bypass.\u003c\/li\u003e\n\u003cli\u003eFlush system at low pressure for 30-60 minutes to remove preservatives and stabilize permeate quality before connecting to medical equipment.\u003c\/li\u003e\n\u003cli\u003eMonitor salt rejection and flow rate during initial operation; individual elements may vary ±20% from nominal specification.\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 Filmtec TW30HP-4619 is designed for commercial tap water RO systems requiring 4.6-inch diameter membranes, particularly medical-grade applications where high rejection rates are mandatory. This element is compatible with standard 4.6\" x 19\" pressure vessels rated for 300 psi operating pressure. Available in both wet and dry configurations depending on shipping and storage needs. Not intended for residential point-of-use systems or brackish water desalination—use Filmtec BW30 series for brackish applications or larger 8-inch elements for higher-volume commercial installations.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"pro-tip\"\u003e\n🔧 Medical RO systems demand consistent performance—log your initial flow and rejection readings during commissioning and compare monthly. A sudden 15% drop in normalized permeate flow or salt rejection below 98% signals membrane fouling or scaling that requires immediate attention before it compromises patient safety.\n\u003c\/div\u003e\n\n\u003c\/div\u003e","brand":"Filmtec","offers":[{"title":"Default Title","offer_id":35470210924706,"sku":"MM-4619","price":1197.06,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0446\/7677\/6098\/files\/product-5536637354146-padded.jpg?v=1777262269"},{"product_id":"filmtec-tw30hp-4641-medical-application-membrane-5-200-gpd-4-6-x-41","title":"Filmtec (TW30HP-4641) Medical Application Membrane 5,200 GPD 4.6\" x 41\"","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\n\u003cdiv class=\"ro-callout\"\u003e\nThe Filmtec TW30HP-4641 is a high-performance 4.6\" x 41\" reverse osmosis membrane engineered specifically for medical-grade water applications, delivering 5,200 gallons per day with 99.0% stabilized salt rejection. Built with the same industrial-grade materials used in municipal water systems, this membrane is the trusted choice for hospitals, dialysis clinics, and healthcare facilities requiring consistent, ultra-pure 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\"\u003eFilmtec TW30HP-4641 Performance Data\u003c\/h2\u003e\n\u003cdiv class=\"spec-cards\"\u003e\n\u003cdiv class=\"spec-card\"\u003e\n\u003cdiv class=\"sc-label\"\u003ePermeate Flow\u003c\/div\u003e\n\u003cdiv class=\"sc-value\"\u003e5,200 GPD\u003c\/div\u003e\n\u003cdiv class=\"sc-note\"\u003e19.7 m³\/day nominal\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"spec-card\"\u003e\n\u003cdiv class=\"sc-label\"\u003eDimensions\u003c\/div\u003e\n\u003cdiv class=\"sc-value\"\u003e4.6\" × 41\"\u003c\/div\u003e\n\u003cdiv class=\"sc-note\"\u003eIndustrial diameter\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"spec-card\"\u003e\n\u003cdiv class=\"sc-label\"\u003eSalt Rejection\u003c\/div\u003e\n\u003cdiv class=\"sc-value\"\u003e99.0%\u003c\/div\u003e\n\u003cdiv class=\"sc-note\"\u003eStabilized performance\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"spec-card\"\u003e\n\u003cdiv class=\"sc-label\"\u003eMinimum Rejection\u003c\/div\u003e\n\u003cdiv class=\"sc-value\"\u003e98.0%\u003c\/div\u003e\n\u003cdiv class=\"sc-note\"\u003eGuaranteed spec\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\"\u003eTW30HP\u003c\/div\u003e\n\u003cdiv class=\"sc-note\"\u003eHigh performance\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\"\u003eMedical\u003c\/div\u003e\n\u003cdiv class=\"sc-note\"\u003eHealthcare certified\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\"\u003eTest Conditions \u0026amp; Operating Parameters\u003c\/h2\u003e\n\u003ctable class=\"specs-table\"\u003e\n\u003ctr\u003e\n\u003ctd\u003eTest Solution\u003c\/td\u003e\n\u003ctd\u003e2,000 ppm NaCl\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Pressure\u003c\/td\u003e\n\u003ctd\u003e225 psi (1.6 MPa)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTest Temperature\u003c\/td\u003e\n\u003ctd\u003e77°F (25°C)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003epH Level\u003c\/td\u003e\n\u003ctd\u003e8.0\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRecovery Rate\u003c\/td\u003e\n\u003ctd\u003e15%\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFlow Variance\u003c\/td\u003e\n\u003ctd\u003e±20% per element\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAvailability\u003c\/td\u003e\n\u003ctd\u003eWet or dry configuration\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\"\u003eMedical-Grade Water Systems\u003c\/h2\u003e\n\u003cp\u003eThe Filmtec TW30HP-4641 membrane is designed for critical healthcare applications including hospital water treatment, kidney dialysis clinics, laboratory pure water systems, and pharmaceutical manufacturing. This 4.6-inch diameter element fits commercial RO housings and is compatible with tap water feed sources. The high-performance TW30HP membrane chemistry delivers superior permeate flow while maintaining exceptional salt rejection, making it ideal for applications where water purity is non-negotiable. Available in both wet and dry formats for operational flexibility during installation and storage.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"pro-tip\"\u003e\n💧 Filmtec membranes are manufactured to the same exacting standards as elements used in municipal water treatment plants. Individual element performance may vary within the ±20% tolerance range, which is normal and accounted for in system design calculations.\n\u003c\/div\u003e\n\n\u003c\/div\u003e","brand":"Filmtec","offers":[{"title":"Default Title","offer_id":35470213021858,"sku":"TW30HP-4641","price":1299.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0446\/7677\/6098\/files\/product-5536637517986-padded.jpg?v=1777262272"},{"product_id":"ge-desal-1206719-ag-series-tap-water-brackish-ro-elements-ag2521tf-2-5-x-21-300-gpd-tfc-tape","title":"SUEZ AG2521TF; 2.5\" X 21\" 325 GPD TFC Replacement Reverse Osmosis Membrane for Tap\/Brackish Water (Veolia)","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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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-callout\"\u003e\nThe SUEZ AG2521TF is a 2.5\" x 21\" high-rejection thin-film composite reverse osmosis membrane delivering 325 GPD at 225 psig, engineered for tap and brackish water applications requiring 99.5% average sodium chloride rejection. This commercial-grade element features tape outer wrap construction, 28 mil feed spacers, and male end connections for reliable performance in moderate pressure systems down to 200 psig.\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\"\u003eAG2521TF Performance Data\u003c\/h2\u003e\n\u003cdiv class=\"spec-cards\"\u003e\n\u003cdiv class=\"spec-card\"\u003e\n\u003cdiv class=\"sc-label\"\u003eFlow Rate\u003c\/div\u003e\n\u003cdiv class=\"sc-value\"\u003e325 GPD\u003c\/div\u003e\n\u003cdiv class=\"sc-note\"\u003eAt 225 psig, 77°F, 15% recovery\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"spec-card\"\u003e\n\u003cdiv class=\"sc-label\"\u003eActive Membrane Area\u003c\/div\u003e\n\u003cdiv class=\"sc-value\"\u003e12 ft²\u003c\/div\u003e\n\u003cdiv class=\"sc-note\"\u003eThin Film Membrane (TFM)\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"spec-card\"\u003e\n\u003cdiv class=\"sc-label\"\u003eAverage Rejection\u003c\/div\u003e\n\u003cdiv class=\"sc-value\"\u003e99.5%\u003c\/div\u003e\n\u003cdiv class=\"sc-note\"\u003e99% minimum NaCl rejection\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"spec-card\"\u003e\n\u003cdiv class=\"sc-label\"\u003eElement Dimensions\u003c\/div\u003e\n\u003cdiv class=\"sc-value\"\u003e2.5\" x 21\"\u003c\/div\u003e\n\u003cdiv class=\"sc-note\"\u003eMale end connections\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"spec-card\"\u003e\n\u003cdiv class=\"sc-label\"\u003eFeed Spacer\u003c\/div\u003e\n\u003cdiv class=\"sc-value\"\u003e28 mil\u003c\/div\u003e\n\u003cdiv class=\"sc-note\"\u003eTape outer wrap\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"spec-card\"\u003e\n\u003cdiv class=\"sc-label\"\u003eOperating Pressure\u003c\/div\u003e\n\u003cdiv class=\"sc-value\"\u003e200-450 psig\u003c\/div\u003e\n\u003cdiv class=\"sc-note\"\u003eTypical: 200 psig minimum\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\"\u003eOperating Parameters \u0026amp; Limits\u003c\/h2\u003e\n\u003ctable class=\"specs-table\"\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaximum Temperature\u003c\/td\u003e\n\u003ctd\u003e122°F (50°C)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating pH Range\u003c\/td\u003e\n\u003ctd\u003e4.0 - 11.0 (optimum 7.0 - 7.5)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCleaning pH Range\u003c\/td\u003e\n\u003ctd\u003e2.0 - 11.5\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eChlorine Tolerance\u003c\/td\u003e\n\u003ctd\u003e1,000 ppm-hrs (dechlorination recommended)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFeed Water Quality\u003c\/td\u003e\n\u003ctd\u003eNTU \u0026lt;1, SDI \u0026lt;3\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTypical Operating Flux\u003c\/td\u003e\n\u003ctd\u003e10-20 GFD (15-35 L·h⁻¹·m⁻²)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePart Number\u003c\/td\u003e\n\u003ctd\u003e1206719 (formerly GE Desal)\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 Tap \u0026amp; Brackish Water Treatment\u003c\/h2\u003e\n\u003cp\u003eThe SUEZ AG2521TF (formerly GE Desal AG2521TF, part number 1206719) is engineered for commercial reverse osmosis systems treating tap water or low-to-moderate salinity brackish water sources. The AG-Series is considered an industry standard for applications requiring high rejection performance at relatively low operating pressures, making it suitable for food service, light industrial, and commercial water treatment installations where energy efficiency and reliable TDS reduction are priorities. Test conditions assume 2000 mg\/L NaCl feed solution at 225 psig, 77°F, 15% recovery, and pH 7.5 after 24 hours of operation. This element is designed for housing systems with 2.5-inch internal diameter and accommodates the 21-inch active length with male end fittings.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"pro-tip\"\u003e\n💧 The AG2521TF allows systems to operate efficiently at pressures as low as 200 psig while maintaining excellent salt rejection, offering moderate energy savings compared to higher-pressure membranes. Always verify feed water SDI is below 3 and consider dechlorination to maximize membrane lifespan.\n\u003c\/div\u003e\n\n\u003c\/div\u003e","brand":"Suez","offers":[{"title":"Default Title","offer_id":35470488240290,"sku":"1206719","price":270.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0446\/7677\/6098\/files\/product-5536723533986-padded.jpg?v=1777270087"},{"product_id":"suez-1206729-ag2540tf-2-5-x-40-710-gpd-tfc-replacement-reverse-osmosis-membrane-for-tap-brackish-water","title":"SUEZ AG2540TF; 2.5\" X 40\" 710 GPD TFC Replacement Reverse Osmosis Membrane for Tap\/Brackish Water (Veolia)","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 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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\"\u003eSUEZ AG-Series Commercial Membrane\u003c\/div\u003e\n\u003ch2\u003eAG2540TF 2.5\" × 40\" High-Rejection TFC Membrane\u003c\/h2\u003e\n\u003cdiv class=\"ro-tagline\"\u003e710 GPD thin-film composite element engineered for brackish and tap water systems operating at 200–450 psig\u003c\/div\u003e\n\u003cdiv class=\"ro-badges\"\u003e\n\u003cspan class=\"ro-badge\"\u003e99.5% Avg. Rejection\u003c\/span\u003e\n\u003cspan class=\"ro-badge\"\u003e28 ft² Active Area\u003c\/span\u003e\n\u003cspan class=\"ro-badge\"\u003eTape Outer Wrap\u003c\/span\u003e\n\u003cspan class=\"ro-badge\"\u003eMale End Connections\u003c\/span\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"ro-callout\"\u003e\n\u003cp\u003eThe SUEZ AG2540TF (formerly GE Desal part number 1206729) is a high-rejection brackish water element built on thin-film composite membrane technology, delivering 710 gallons per day at 225 psig with 99.5% average sodium chloride rejection. Designed for commercial reverse osmosis systems treating tap or brackish water sources, this 2.5\" × 40\" element features 28 mil feed spacers, tape outer wrap, and male end connections for secure integration into pressure vessels.\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\"\u003eElement Performance \u0026amp; Design Parameters\u003c\/h3\u003e\n\u003ctable class=\"specs-table\"\u003e\n\u003ctr\u003e\n\u003cth\u003eModel Number\u003c\/th\u003e\n\u003ctd\u003eAG2540TF (SUEZ \/ Veolia)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eManufacturer Part Number\u003c\/th\u003e\n\u003ctd\u003e1206729\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eDimensions\u003c\/th\u003e\n\u003ctd\u003e2.5 inches × 40 inches\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eFlow Rate\u003c\/th\u003e\n\u003ctd\u003e710 gallons per day (GPD)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eActive Membrane Area\u003c\/th\u003e\n\u003ctd\u003e28 ft²\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eAverage NaCl Rejection\u003c\/th\u003e\n\u003ctd\u003e99.5% (minimum 99%)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eMembrane Type\u003c\/th\u003e\n\u003ctd\u003eThin Film Membrane (TFM®)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eFeed Spacer Thickness\u003c\/th\u003e\n\u003ctd\u003e28 mil\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eOuter Wrap\u003c\/th\u003e\n\u003ctd\u003eTape construction\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eEnd Connections\u003c\/th\u003e\n\u003ctd\u003eMale fittings\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eTypical Operating Pressure\u003c\/th\u003e\n\u003ctd\u003e200 psig (1,379 kPa)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eMaximum Operating Pressure\u003c\/th\u003e\n\u003ctd\u003e450 psig\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eMaximum Temperature\u003c\/th\u003e\n\u003ctd\u003e122°F (50°C)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eOperating pH Range\u003c\/th\u003e\n\u003ctd\u003e4.0–11.0\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eOptimum Rejection pH\u003c\/th\u003e\n\u003ctd\u003e7.0–7.5\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eCleaning pH Range\u003c\/th\u003e\n\u003ctd\u003e2.0–11.5\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eChlorine Tolerance\u003c\/th\u003e\n\u003ctd\u003e1,000 ppm-hours (dechlorination recommended)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eMaximum Pressure Drop\u003c\/th\u003e\n\u003ctd\u003e10 psig per element \/ 50 psig per vessel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eFeed Water Turbidity\u003c\/th\u003e\n\u003ctd\u003eLess than 1 NTU\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eFeed Water SDI\u003c\/th\u003e\n\u003ctd\u003eLess than 3\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eTypical Operating Flux\u003c\/th\u003e\n\u003ctd\u003e10–20 GFD (15–35 L·h⁻¹·m⁻²)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eTest Conditions\u003c\/th\u003e\n\u003ctd\u003e2,000 mg\/L NaCl, 225 psig, 77°F, 15% recovery, pH 7.5, 24 hrs\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\"\u003eApplication \u0026amp; System Integration\u003c\/h3\u003e\n\u003cp\u003eThe AG2540TF is engineered for commercial reverse osmosis systems processing tap water and brackish water sources where high sodium chloride rejection is required at operating pressures as low as 200 psig. Compatible with standard 2.5-inch pressure vessels designed for 40-inch elements with male end cap connections. Suitable for municipal water treatment, industrial process water, beverage production, and commercial applications requiring consistent permeate quality. Feed water must be pre-filtered to maintain turbidity below 1 NTU and SDI below 3 to protect membrane surface and optimize service life. This element is a direct replacement for GE Desal 1206729 and integrates with SUEZ (Veolia) AG-Series system designs.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003c\/div\u003e","brand":"Suez","offers":[{"title":"Default Title","offer_id":35470488371362,"sku":"1206729","price":406.46,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0446\/7677\/6098\/files\/product-5536723632290-padded.jpg?v=1777270093"},{"product_id":"suez-1206750-ag4021tf-4-x-21-1050-gpd-tfc-replacement-reverse-osmosis-membrane-for-tap-brackish-water","title":"SUEZ AG4021TF; 4\" X 21\" 1050 GPD TFC Replacement Reverse Osmosis Membrane for Tap\/Brackish Water (Veolia)","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 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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-callout\"\u003e\nThe SUEZ AG4021TF is a 4\" x 21\" thin-film composite reverse osmosis membrane engineered for commercial tap and brackish water treatment, delivering 1050 gallons per day at 99.5% average salt rejection. Designed for high rejection performance at operating pressures as low as 200 psig, this 42 sq ft membrane element provides reliable desalination with moderate energy consumption for commercial 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\"\u003eAG4021TF Performance Data\u003c\/h2\u003e\n\u003cdiv class=\"spec-cards\"\u003e\n\u003cdiv class=\"spec-card\"\u003e\n\u003cdiv class=\"sc-label\"\u003ePermeate Flow\u003c\/div\u003e\n\u003cdiv class=\"sc-value\"\u003e1,050 GPD\u003c\/div\u003e\n\u003cdiv class=\"sc-note\"\u003eat 225 psig, 77°F\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"spec-card\"\u003e\n\u003cdiv class=\"sc-label\"\u003eActive Membrane Area\u003c\/div\u003e\n\u003cdiv class=\"sc-value\"\u003e42 ft²\u003c\/div\u003e\n\u003cdiv class=\"sc-note\"\u003ethin-film composite\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"spec-card\"\u003e\n\u003cdiv class=\"sc-label\"\u003eAverage Salt Rejection\u003c\/div\u003e\n\u003cdiv class=\"sc-value\"\u003e99.5%\u003c\/div\u003e\n\u003cdiv class=\"sc-note\"\u003e99% minimum\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"spec-card\"\u003e\n\u003cdiv class=\"sc-label\"\u003eElement Dimensions\u003c\/div\u003e\n\u003cdiv class=\"sc-value\"\u003e4\" × 21\"\u003c\/div\u003e\n\u003cdiv class=\"sc-note\"\u003etape outer wrap\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"spec-card\"\u003e\n\u003cdiv class=\"sc-label\"\u003eOperating Pressure\u003c\/div\u003e\n\u003cdiv class=\"sc-value\"\u003e200 psig\u003c\/div\u003e\n\u003cdiv class=\"sc-note\"\u003e450 psig maximum\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"spec-card\"\u003e\n\u003cdiv class=\"sc-label\"\u003eFeed Spacer\u003c\/div\u003e\n\u003cdiv class=\"sc-value\"\u003e28 mil\u003c\/div\u003e\n\u003cdiv class=\"sc-note\"\u003emale end connections\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\"\u003eOperating Parameters \u0026amp; Limits\u003c\/h2\u003e\n\u003ctable class=\"specs-table\"\u003e\n\u003ctr\u003e\n\u003ctd\u003eMembrane Technology\u003c\/td\u003e\n\u003ctd\u003eThin Film Membrane (TFM) proprietary composite\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaximum Temperature\u003c\/td\u003e\n\u003ctd\u003e122°F (50°C) continuous operation\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating pH Range\u003c\/td\u003e\n\u003ctd\u003e4.0 – 11.0 (optimum 7.0 – 7.5 for rejection)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eChlorine Tolerance\u003c\/td\u003e\n\u003ctd\u003e1,000 ppm-hours maximum, dechlorination recommended\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFeed Water Quality\u003c\/td\u003e\n\u003ctd\u003eSDI \u0026lt;3, turbidity \u0026lt;1 NTU required\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaximum Pressure Drop\u003c\/td\u003e\n\u003ctd\u003e6 psig per element, 36 psig per vessel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTypical Operating Flux\u003c\/td\u003e\n\u003ctd\u003e10-20 GFD (15-35 L\/h\/m²) at standard 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\"\u003eCommercial Brackish \u0026amp; Tap Water Systems\u003c\/h2\u003e\n\u003cp\u003eThe SUEZ AG4021TF (formerly GE Desal AG-Series) is engineered for commercial reverse osmosis systems treating tap water and brackish water sources with TDS up to 2,000 mg\/L. This high rejection element is ideal for applications requiring exceptional salt removal at moderate pressures, including food service, light industrial, and commercial water purification installations. The AG-Series represents an industry-standard choice for operators balancing performance with energy efficiency. Test conditions: 2000 mg\/L NaCl solution at 225 psig, 77°F, 15% recovery, pH 7.5 after 24-hour stabilization. Individual element flux may vary +25%\/-15% from nominal specifications. Compatible with standard 4-inch commercial RO housings with male-threaded end caps.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"pro-tip\"\u003e\n💧 \u003cstrong\u003ePro Tip:\u003c\/strong\u003e The AG4021TF's 28 mil feed spacer and tape wrap configuration make it particularly well-suited for well water and municipal sources with moderate fouling potential. Always confirm feed water SDI is below 3 and consider antiscalant dosing when operating near the 450 psig maximum pressure limit to protect membrane longevity.\n\u003c\/div\u003e\n\n\u003c\/div\u003e","brand":"Suez","offers":[{"title":"Default Title","offer_id":35470488928418,"sku":"1206750","price":496.48,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0446\/7677\/6098\/files\/product-5536723796130-padded.jpg?v=1777270099"},{"product_id":"ge-desal-1206799-ak-series-low-pressure-ro-elements-ak2521tf-2-5-x-21-300-gpd-tfc-lp-dry","title":"SUEZ AK2521TF; 2.5\" X 21\" 300 GPD TFC Replacement Reverse Osmosis Membrane - (Product flow @ 107 PSI) (Veolia)","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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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\"\u003eCommercial Low Energy RO Membrane\u003c\/div\u003e\n \u003ch2\u003eSUEZ AK2521TF 2.5\" × 21\" Thin-Film Composite Membrane\u003c\/h2\u003e\n \u003cdiv class=\"ro-tagline\"\u003e300 GPD low-pressure brackish water element delivering high rejection at operating pressures as low as 100 PSI\u003c\/div\u003e\n \u003cdiv class=\"ro-badges\"\u003e\n \u003cspan class=\"ro-badge\"\u003e300 GPD @ 107 PSI\u003c\/span\u003e\n \u003cspan class=\"ro-badge\"\u003e2.5\" × 21\" Form Factor\u003c\/span\u003e\n \u003cspan class=\"ro-badge\"\u003eHigh Flux TFC\u003c\/span\u003e\n \u003cspan class=\"ro-badge\"\u003eLow Pressure Design\u003c\/span\u003e\n \u003c\/div\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"ro-callout\"\u003e\n \u003cp\u003eThe SUEZ AK2521TF (formerly GE Desal 1206799) is an A-Series thin-film composite reverse osmosis element engineered for commercial brackish water applications where high rejection and energy efficiency matter. This low-pressure membrane features a tape outer wrap, 28 mil feed spacers, and male end connections optimized for reliable desalination in systems operating at 100-150 PSI.\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\"\u003eAK2521TF Technical Data\u003c\/h3\u003e\n \u003ctable class=\"specs-table\"\u003e\n \u003ctr\u003e\n \u003ctd class=\"spec-key\"\u003eMembrane Type\u003c\/td\u003e\n \u003ctd class=\"spec-value\"\u003eThin-Film Composite (TFC)\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003ctd class=\"spec-key\"\u003eRated Flow\u003c\/td\u003e\n \u003ctd class=\"spec-value\"\u003e300 GPD at 107 PSI\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003ctd class=\"spec-key\"\u003eDimensions\u003c\/td\u003e\n \u003ctd class=\"spec-value\"\u003e2.5\" diameter × 21\" length\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003ctd class=\"spec-key\"\u003eFeed Spacer\u003c\/td\u003e\n \u003ctd class=\"spec-value\"\u003e28 mil thickness\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003ctd class=\"spec-key\"\u003eOperating Pressure\u003c\/td\u003e\n \u003ctd class=\"spec-value\"\u003e100-150 PSI (low pressure)\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003ctd class=\"spec-key\"\u003eEnd Connections\u003c\/td\u003e\n \u003ctd class=\"spec-value\"\u003eMale (both ends)\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003ctd class=\"spec-key\"\u003eOuter Wrap\u003c\/td\u003e\n \u003ctd class=\"spec-value\"\u003eTape construction\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003ctd class=\"spec-key\"\u003eApplication\u003c\/td\u003e\n \u003ctd class=\"spec-value\"\u003eBrackish water, tap water desalination\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 Requirements\u003c\/h3\u003e\n \u003cp\u003eThe SUEZ AK2521TF fits commercial RO housings designed for 2.5\" × 21\" membrane elements with male connections. This membrane is ideal for small commercial brackish water systems, light industrial applications, and high-purity water production where lower operating pressures reduce energy costs. Compatible with standard Filmtec-style AK-series housings. Verify feed water quality, temperature (4-45°C), and pH range (3-10) before installation to ensure optimal performance and membrane longevity.\u003c\/p\u003e\n \u003c\/div\u003e\n\u003c\/div\u003e","brand":"Suez","offers":[{"title":"Default Title","offer_id":35470490173602,"sku":"1206799","price":285.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0446\/7677\/6098\/files\/product-5536724320418-padded.jpg?v=1777270120"},{"product_id":"ge-desal-1206802-ak-series-low-pressure-ro-elements-ak2540tf-2-5-x-40-710-gpd-tfc-lp-dry","title":"SUEZ AK2540TF; 2.5\" X 40\" 710 GPD TFC Replacement Reverse Osmosis Membrane - (Product Flow @ 107 PSI) (Veolia)","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 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.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 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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 \u003cdiv class=\"ro-hero\"\u003e\n \u003cdiv class=\"ro-eyebrow\"\u003eSUEZ Water Technologies\u003c\/div\u003e\n \u003ch2\u003eAK2540TF Low Energy Commercial RO Membrane\u003c\/h2\u003e\n \u003cdiv class=\"ro-tagline\"\u003e2.5\" × 40\" thin-film composite membrane delivering 710 GPD at 107 PSI for brackish and tap water applications\u003c\/div\u003e\n \u003cdiv class=\"ro-badges\"\u003e\n \u003cspan class=\"ro-badge\"\u003e710 GPD Rated Flow\u003c\/span\u003e\n \u003cspan class=\"ro-badge\"\u003eHigh Salt Rejection\u003c\/span\u003e\n \u003cspan class=\"ro-badge\"\u003eLow Pressure Design\u003c\/span\u003e\n \u003cspan class=\"ro-badge\"\u003eCommercial Grade\u003c\/span\u003e\n \u003c\/div\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"ro-callout\"\u003e\n \u003cp\u003eThe SUEZ AK2540TF (formerly GE Desal) is a low-energy thin-film composite reverse osmosis membrane engineered for commercial brackish water desalination at operating pressures as low as 100 PSI. This 2.5-inch diameter by 40-inch length membrane combines high permeate flux with excellent sodium chloride rejection, making it ideal for applications where energy efficiency and consistent water quality are required.\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\"\u003eTechnical Details\u003c\/div\u003e\n \u003cdiv class=\"specs-table\"\u003e\n \u003cdiv class=\"spec-row\"\u003e\n \u003cspan class=\"spec-label\"\u003eModel Number\u003c\/span\u003e\n \u003cspan class=\"spec-value\"\u003eAK2540TF\u003c\/span\u003e\n \u003c\/div\u003e\n \u003cdiv class=\"spec-row\"\u003e\n \u003cspan class=\"spec-label\"\u003eManufacturer\u003c\/span\u003e\n \u003cspan class=\"spec-value\"\u003eSUEZ Water Technologies (Veolia)\u003c\/span\u003e\n \u003c\/div\u003e\n \u003cdiv class=\"spec-row\"\u003e\n \u003cspan class=\"spec-label\"\u003eMembrane Type\u003c\/span\u003e\n \u003cspan class=\"spec-value\"\u003eThin-Film Composite (TFC)\u003c\/span\u003e\n \u003c\/div\u003e\n \u003cdiv class=\"spec-row\"\u003e\n \u003cspan class=\"spec-label\"\u003eDimensions\u003c\/span\u003e\n \u003cspan class=\"spec-value\"\u003e2.5\" diameter × 40\" length\u003c\/span\u003e\n \u003c\/div\u003e\n \u003cdiv class=\"spec-row\"\u003e\n \u003cspan class=\"spec-label\"\u003eRated Flow\u003c\/span\u003e\n \u003cspan class=\"spec-value\"\u003e710 GPD at 107 PSI\u003c\/span\u003e\n \u003c\/div\u003e\n \u003cdiv class=\"spec-row\"\u003e\n \u003cspan class=\"spec-label\"\u003eOperating Pressure\u003c\/span\u003e\n \u003cspan class=\"spec-value\"\u003e100–150 PSI (low pressure optimized)\u003c\/span\u003e\n \u003c\/div\u003e\n \u003cdiv class=\"spec-row\"\u003e\n \u003cspan class=\"spec-label\"\u003eFeed Spacer\u003c\/span\u003e\n \u003cspan class=\"spec-value\"\u003e28 mil thickness\u003c\/span\u003e\n \u003c\/div\u003e\n \u003cdiv class=\"spec-row\"\u003e\n \u003cspan class=\"spec-label\"\u003eEnd Connections\u003c\/span\u003e\n \u003cspan class=\"spec-value\"\u003eMale\u003c\/span\u003e\n \u003c\/div\u003e\n \u003cdiv class=\"spec-row\"\u003e\n \u003cspan class=\"spec-label\"\u003eOuter Wrap\u003c\/span\u003e\n \u003cspan class=\"spec-value\"\u003eTape-style\u003c\/span\u003e\n \u003c\/div\u003e\n \u003cdiv class=\"spec-row\"\u003e\n \u003cspan class=\"spec-label\"\u003eStorage\u003c\/span\u003e\n \u003cspan class=\"spec-value\"\u003eDry (LP-DRY format)\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\"\u003eCOMPATIBILITY\u003c\/div\u003e\n \u003cdiv class=\"ro-title\"\u003eApplication \u0026amp; System Fit\u003c\/div\u003e\n \u003cp\u003eThe AK2540TF is designed for commercial brackish water and tap water reverse osmosis systems requiring 2.5-inch membrane housings with 40-inch element lengths. This membrane is a direct replacement for FilmTec-style elements in systems where high rejection performance is needed at reduced operating pressures. Select this element when your application demands consistent salt rejection, energy savings from lower pressure operation, and compatibility with standard 2.5\" × 40\" commercial RO housings. The dry storage format eliminates the need for preservative flushing prior to startup.\u003c\/p\u003e\n \u003c\/div\u003e\n\u003c\/div\u003e","brand":"Suez","offers":[{"title":"Default Title","offer_id":35470490435746,"sku":"1206802","price":428.41,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0446\/7677\/6098\/files\/product-5536724451490-padded.jpg?v=1777270125"},{"product_id":"suez-ak4021tf-4-x-21-1050-gpd-tfc-replacement-reverse-osmosis-membrane-product-flow-107-psi","title":"SUEZ AK4021TF; 4\" X 21\" 1050 GPD TFC Replacement Reverse Osmosis Membrane - (Product flow @ 107 PSI) (Veolia)","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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!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\"\u003eSUEZ \/ Veolia Commercial RO Membrane\u003c\/div\u003e\n\u003ch2\u003e\n\u003cem\u003eAK4021TF\u003c\/em\u003e 4\" × 21\" Low Pressure Thin-Film Composite Membrane\u003c\/h2\u003e\n\u003cdiv class=\"ro-tagline\"\u003eHigh-flux brackish water desalination for commercial systems operating at 100–107 PSI\u003c\/div\u003e\n\u003cdiv class=\"ro-badges\"\u003e\n\u003cspan class=\"ro-badge\"\u003e✓ 1050 GPD rated output\u003c\/span\u003e\n\u003cspan class=\"ro-badge\"\u003e✓ High sodium chloride rejection\u003c\/span\u003e\n\u003cspan class=\"ro-badge\"\u003e✓ Low-pressure optimized\u003c\/span\u003e\n\u003cspan class=\"ro-badge\"\u003e✓ Tape-wrapped, dry-stored\u003c\/span\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"ro-callout\"\u003e\n\u003cp\u003eThe SUEZ AK4021TF (formerly GE Desal) is a commercial thin-film composite reverse osmosis element engineered for brackish and tap water applications where high rejection is needed at lower operating pressures. Rated at \u003cstrong\u003e1050 GPD at 107 PSI\u003c\/strong\u003e, this \u003cstrong\u003e4-inch by 21-inch\u003c\/strong\u003e element features a tape outer wrap and 28-mil feed spacers with male end connections, delivering consistent performance in light commercial and high-demand residential installations.\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\"\u003eEngineered for Low-Pressure Efficiency\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\u003eHigh Flux TFC Membrane\u003c\/h3\u003e\n\u003cp\u003eThin-film composite construction with high permeate flow and excellent salt rejection for consistent water quality in brackish water 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\u003eLow Operating Pressure\u003c\/h3\u003e\n\u003cp\u003eOptimized for operation at 100 PSI and above, reducing energy costs and extending pump service life in commercial installations\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 4\" × 21\" Footprint\u003c\/h3\u003e\n\u003cp\u003eDrop-in replacement for commercial housings using male end adapters, compatible with legacy GE Desal and FilmTec-style 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\u003eTape Wrap \u0026amp; Dry Storage\u003c\/h3\u003e\n\u003cp\u003eFactory tape-wrapped with 28-mil feed spacers, shipped dry to ensure long shelf life and reliable startup performance\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\u003eCommercial Grade\u003c\/h3\u003e\n\u003cp\u003eDesigned for continuous duty in restaurants, labs, small industrial applications, and whole-building water treatment\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\u003eHigh NaCl Rejection\u003c\/h3\u003e\n\u003cp\u003eA-Series thin-film chemistry delivers dependable salt removal for brackish water and tap water desalination applications\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\"\u003eReplacement for GE Desal \u0026amp; Legacy Systems\u003c\/h3\u003e\n\u003cp\u003eThe SUEZ AK4021TF is compatible with GE Desal part number 1206812 and other AK-Series low-energy RO elements. Designed for use in commercial 4-inch housings with male end adapters, this membrane fits systems from Veolia, FilmTec-compatible platforms, and other standard brackish water reverse osmosis configurations. Ideal for tap water purification, light brackish water desalination, restaurants, coffee shops, laboratories, and whole-building commercial installations requiring reliable low-pressure operation.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"ro-callout\"\u003e\n\u003cp\u003eSUEZ (Veolia Water Technologies) AK-Series membranes are specified by engineers worldwide for dependable, cost-effective brackish water treatment.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003c\/div\u003e","brand":"Suez","offers":[{"title":"Default Title","offer_id":35470492205218,"sku":"1206812","price":499.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0446\/7677\/6098\/files\/product-5536725434530-padded.jpg?v=1777270131"},{"product_id":"omnipure-tq56-50fc-q-series-purotwist-50-gpd-reverse-osmosis-encapsulated-membrane-w-fc","title":"Omnipure - TQ56 - Q-Series PuROTwist Replacement Encapsulated Reverse Osmosis Membrane with Built In Flow 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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 Omnipure TQ56 is a 50 GPD encapsulated reverse osmosis membrane designed for fast twist-on installation in PuROTwist 4000, PuROTwist 3000, and any system using Q-Series filters. It includes a built-in flow restrictor and check valve, eliminating the need for separate components and reducing potential leak points.\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 Production\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\"\u003eTFM\u003c\/div\u003e\n\u003cdiv class=\"sc-note\"\u003eThin Film Membrane technology\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"spec-card\"\u003e\n\u003cdiv class=\"sc-label\"\u003eDimensions\u003c\/div\u003e\n\u003cdiv class=\"sc-value\"\u003e12.75\" × 2.5\"\u003c\/div\u003e\n\u003cdiv class=\"sc-note\"\u003eStandard Q-Series housing size\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\"\u003e24 Months\u003c\/div\u003e\n\u003cdiv class=\"sc-note\"\u003eReplace every two years\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"spec-card\"\u003e\n\u003cdiv class=\"sc-label\"\u003eFlow Control\u003c\/div\u003e\n\u003cdiv class=\"sc-value\"\u003eIntegrated\u003c\/div\u003e\n\u003cdiv class=\"sc-note\"\u003eBuilt-in flow restrictor included\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\"\u003eBuilt-in check valve included\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\"\u003eFull Specifications\u003c\/h2\u003e\n\u003ctable class=\"specs-table\"\u003e\n\u003ctr\u003e\n\u003ctd\u003eModel Number\u003c\/td\u003e\n\u003ctd\u003eTQ56 (also known as TQ56-50FC)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSeries\u003c\/td\u003e\n\u003ctd\u003eQ-Series PuROTwist\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHousing Compatibility\u003c\/td\u003e\n\u003ctd\u003eOmnipure Q-Series encapsulated housings\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMembrane Technology\u003c\/td\u003e\n\u003ctd\u003eThin Film Membrane (TFM)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInstallation Method\u003c\/td\u003e\n\u003ctd\u003eQuarter-turn twist-on (PuROTwist)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFlow Restrictor\u003c\/td\u003e\n\u003ctd\u003eFactory-installed, calibrated for 50 GPD\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eReplacement Interval\u003c\/td\u003e\n\u003ctd\u003e24 months under normal residential use\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 Fit and Use Cases\u003c\/h2\u003e\n\u003cp\u003eThe Omnipure TQ56 is engineered for residential reverse osmosis systems that utilize Q-Series encapsulated filters, including the PuROTwist 4000 and PuROTwist 3000 platforms. The integrated flow restrictor and check valve simplify replacement and eliminate the need to source separate components. This membrane is designed for municipal or well water sources where sediment and carbon pre-filtration stages are in place upstream. Compatible with any RO system using the Q-Series twist-on format, the TQ56 reduces total dissolved solids (TDS), heavy metals, and a wide range of contaminants typical in residential applications.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"pro-tip\"\u003e\n💧 \u003cstrong\u003ePro Tip:\u003c\/strong\u003e The built-in flow restrictor is calibrated for 50 GPD production. If you're upgrading from a non-encapsulated membrane, remove any external flow restrictor from your system to avoid double-restricting flow and reducing membrane efficiency.\n\u003c\/div\u003e\n\n\u003c\/div\u003e","brand":"Omnipure","offers":[{"title":"15 GPD \/ Single","offer_id":35617235337378,"sku":"TQ56-15FC","price":76.95,"currency_code":"USD","in_stock":true},{"title":"15 GPD \/ Two Pack","offer_id":43456264798379,"sku":"2x TQ56-15FC","price":150.0,"currency_code":"USD","in_stock":true},{"title":"15 GPD \/ Three Pack","offer_id":44027176845483,"sku":"3xTQ56-15FC","price":219.31,"currency_code":"USD","in_stock":true},{"title":"36 GPD \/ Single","offer_id":35617235370146,"sku":"TQ56-36FC\/NSF","price":83.56,"currency_code":"USD","in_stock":true},{"title":"36 GPD \/ Two Pack","offer_id":43456264831147,"sku":"2x TQ56-36FC\/NSF","price":160.0,"currency_code":"USD","in_stock":true},{"title":"36 GPD \/ Three 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Single","offer_id":35617235468450,"sku":"TQ56-100FC","price":100.34,"currency_code":"USD","in_stock":true},{"title":"100 GPD \/ Two Pack","offer_id":43456264929451,"sku":"2x TQ56-100FC","price":190.0,"currency_code":"USD","in_stock":true},{"title":"100 GPD \/ Three Pack","offer_id":44027176976555,"sku":"3xTQ56-100FC","price":286.03,"currency_code":"USD","in_stock":true},{"title":"150 GPD \/ Single","offer_id":35617235501218,"sku":"TQ56-150FC","price":182.53,"currency_code":"USD","in_stock":true},{"title":"150 GPD \/ Two Pack","offer_id":43456264962219,"sku":"2x TQ56-150FC","price":350.0,"currency_code":"USD","in_stock":true},{"title":"150 GPD \/ Three Pack","offer_id":44027177009323,"sku":"3xTQ56-150FC","price":520.21,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0446\/7677\/6098\/files\/product-5536945045666-padded.jpg?v=1777267770"},{"product_id":"csm-re4040-be-4x40-2400-gpd-bw-brackish-water","title":"CSM RE4040-BE - 4\" x 40\"; 2400 GPD 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.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 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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\"\u003eToray CSM Commercial Membrane\u003c\/div\u003e\n\u003ch2\u003e\n\u003cem\u003eCSM RE4040-BE\u003c\/em\u003e 4\" x 40\" Brackish Water RO Membrane\u003c\/h2\u003e\n\u003cdiv class=\"ro-tagline\"\u003e2,400 GPD thin film membrane engineered for brackish water up to 10,000 ppm TDS. Industrial-grade filtration for commercial drinking water, pharmaceutical, and process applications.\u003c\/div\u003e\n\u003cdiv class=\"ro-badges\"\u003e\n\u003cspan class=\"ro-badge\"\u003eNSF Certified\u003c\/span\u003e\n\u003cspan class=\"ro-badge\"\u003e24-Month Service Life\u003c\/span\u003e\n\u003cspan class=\"ro-badge\"\u003eThin Film Membrane\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\"\u003eBuilt for High-TDS Brackish Water Treatment\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\u003e2,400 GPD Flow Rate\u003c\/h3\u003e\n\u003cp\u003eThe RE4040-BE delivers commercial-scale output for drinking water production, industrial processes, and pharmaceutical applications without sacrificing rejection 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\u003e10,000 ppm TDS Range\u003c\/h3\u003e\n\u003cp\u003eDesigned specifically for brackish water sources and tap water with elevated dissolved solids. Handles challenging feed water chemistry that would overwhelm standard membranes.\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\u003eIndustrial TFM Construction\u003c\/h3\u003e\n\u003cp\u003eToray's thin film membrane technology provides superior salt rejection and fouling resistance. Built to withstand continuous commercial operation in demanding environments.\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\u003c\/h3\u003e\n\u003cp\u003eMeets NSF standards for drinking water treatment. Suitable for potable water systems, food and beverage processing, pharmaceutical production, and wastewater reclamation.\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\"\u003eStandard 4-Inch Commercial Housings\u003c\/h3\u003e\n\u003cp\u003eThe CSM RE4040-BE fits any standard 4\" x 40\" commercial reverse osmosis membrane housing. Direct replacement for Filmtec BW30-4040, Hydranautics CPA2-4040, DOW BW30-400, and other 4040 format brackish water membranes. Verify system pressure ratings and flow requirements before installation.\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\u003ePerformance Check\u003c\/h4\u003e\n\u003cp\u003eMonitor TDS rejection and permeate flow. A 15% decline in flow or rejection indicates membrane fouling or scaling. Chemical cleaning may restore performance.\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\u003eInspection \u0026amp; Cleaning\u003c\/h4\u003e\n\u003cp\u003eInspect feed spacers and O-rings for wear. Chemical cleaning recommended for systems operating with high-fouling feed water or elevated hardness.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"schedule-card\"\u003e\n\u003cdiv class=\"interval\"\u003eEvery 24 Months\u003c\/div\u003e\n\u003ch4\u003eMembrane Replacement\u003c\/h4\u003e\n\u003cp\u003eReplace the RE4040-BE membrane element. Extended service life possible with proper pretreatment and regular maintenance, but performance degradation is typical after two years.\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\u003eSame-Day Shipping\u003c\/h4\u003e\n\u003cp\u003eOrder by 3 PM EST for same-day dispatch\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"benefit-item\"\u003e\n\u003cdiv class=\"bi-icon\"\u003e🔧\u003c\/div\u003e\n\u003ch4\u003eTechnical Support\u003c\/h4\u003e\n\u003cp\u003eExpert guidance on system design and troubleshooting\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"benefit-item\"\u003e\n\u003cdiv class=\"bi-icon\"\u003e🏆\u003c\/div\u003e\n\u003ch4\u003eAuthorized Distributor\u003c\/h4\u003e\n\u003cp\u003eGenuine Toray CSM membranes with full warranty\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003c\/div\u003e","brand":"Toray","offers":[{"title":"Default Title","offer_id":35471376973986,"sku":"RE4040-BE","price":327.12,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0446\/7677\/6098\/files\/product-5536949600418-padded.jpg?v=1777261905"},{"product_id":"valuetrex-vx30-1812-50-r-o-tfc-membrane-50-gpd","title":"Valuetrex (VX-TW30) Thin Film Composite Replacement Reverse Osmosis 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\nThe Valuetrex VX-TW30 delivers reliable thin film composite reverse osmosis filtration at a price point that makes membrane replacement practical for residential systems. This standard-dimension membrane fits most conventional RO housings and provides 2-5 years of consistent performance between 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\"\u003eValuetrex VX-TW30 Technical Details\u003c\/h2\u003e\n\u003ctable class=\"specs-table\"\u003e\n\u003ctr\u003e\n\u003ctd\u003eModel Number\u003c\/td\u003e\n\u003ctd\u003eVX-TW30\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMembrane Type\u003c\/td\u003e\n\u003ctd\u003eThin Film Composite (TFC)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003e1.8\" diameter × 11.75\" length\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e10 oz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Pressure\u003c\/td\u003e\n\u003ctd\u003e40-100 psi\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Temperature\u003c\/td\u003e\n\u003ctd\u003e40-100°F\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eService Life\u003c\/td\u003e\n\u003ctd\u003e2-5 years (depending on source water quality)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eApplication\u003c\/td\u003e\n\u003ctd\u003eResidential reverse osmosis 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\"\u003eMembrane Replacement Procedure\u003c\/h2\u003e\n\u003col class=\"install-steps\"\u003e\n\u003cli\u003eShut off water supply and depressurize the system by opening the RO faucet\u003c\/li\u003e\n\u003cli\u003eRemove the membrane housing cap, pull out the old membrane, and inspect the housing for debris or buildup\u003c\/li\u003e\n\u003cli\u003eInsert the new VX-TW30 membrane into the housing with the rubber seal end first, ensuring it seats fully\u003c\/li\u003e\n\u003cli\u003eReinstall the housing cap, turn on water supply, and flush the system for 30-45 minutes before use\u003c\/li\u003e\n\u003cli\u003eCheck for leaks at all connection points and monitor initial water quality over the first 24 hours\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 Fitment\u003c\/h2\u003e\n\u003cp\u003eThe Valuetrex VX-TW30 membrane fits most standard residential reverse osmosis systems with conventional 1.8\" × 12\" membrane housings. This includes systems from major manufacturers using the industry-standard housing dimension. Verify your existing membrane dimensions before ordering to ensure proper fitment.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"pro-tip\"\u003e\n🔧 \u003cstrong\u003ePro tip:\u003c\/strong\u003e If your RO system is producing water slower than usual but the membrane isn't due for replacement, check your prefilters first. A clogged sediment or carbon filter will starve the membrane of adequate feed pressure and reduce output dramatically.\n\u003c\/div\u003e\n\n\u003c\/div\u003e","brand":"Valuetrex","offers":[{"title":"50 GPD","offer_id":35578583220386,"sku":"VX-TW30-50D","price":56.54,"currency_code":"USD","in_stock":true},{"title":"75 GPD","offer_id":35578583253154,"sku":"VX-TW30-75D","price":66.35,"currency_code":"USD","in_stock":true},{"title":"100 GPD","offer_id":35578583285922,"sku":"VX-TW30-100D","price":82.4,"currency_code":"USD","in_stock":true},{"title":"150 GPD","offer_id":35578583351458,"sku":"VX-TW30-150D","price":104.72,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0446\/7677\/6098\/files\/valuetrex-vx-tw30-thin-film-composite-replacement-reverse-osmosis-membrane-108703.jpg?v=1762460408"},{"product_id":"clack-s-1227rs-microline-tfc-25-gpd-reverse-osmosis-membrane","title":"Clack - Microline Thin Film Composite Replacement Residential Reverse Osmosis Membrane for TFC-335, TFC-435","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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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-callout\"\u003e\n The Clack Microline S1227RS and S1229RS thin film composite membranes deliver proven reverse osmosis filtration for residential TFC-3 and TFC-4 systems. Engineered to remove dissolved solids, heavy metals, and chemical contaminants, these TFC membranes provide 2-5 years of reliable performance when paired with proper pre-filtration.\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\"\u003eMicroline TFC Membrane Technical Data\u003c\/h2\u003e\n \u003ctable class=\"specs-table\"\u003e\n \u003ctr\u003e\n \u003ctd\u003eMembrane Technology\u003c\/td\u003e\n \u003ctd\u003eThin Film Composite (TFC)\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003ctd\u003eFlow Rate Options\u003c\/td\u003e\n \u003ctd\u003e14 GPD, 25 GPD, or 50 GPD\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003ctd\u003eOperating Pressure\u003c\/td\u003e\n \u003ctd\u003e40-100 psi\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003ctd\u003eExpected Lifespan\u003c\/td\u003e\n \u003ctd\u003e2-5 years (varies by water quality)\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003ctd\u003eReplaces Models\u003c\/td\u003e\n \u003ctd\u003eTFC-335, TFC-435, T112-25 CLK, T112-25-CLK\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003ctd\u003eSystem Compatibility\u003c\/td\u003e\n \u003ctd\u003eClack Microline TFC-3, TFC-4 RO Systems\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003ctd\u003eContaminant Reduction\u003c\/td\u003e\n \u003ctd\u003eTDS, chlorine, heavy metals, nitrates, fluoride, bacteria\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003ctd\u003ePre-Filtration Requirement\u003c\/td\u003e\n \u003ctd\u003eCarbon pre-filter mandatory (TFC membranes not chlorine-resistant)\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\"\u003eMembrane Replacement Procedure\u003c\/h2\u003e\n \u003col class=\"install-steps\"\u003e\n \u003cli\u003eShut off the feed water supply line and depressurize the system by opening the faucet\u003c\/li\u003e\n \u003cli\u003eUnscrew the membrane housing, remove the old membrane, and note the orientation of the flow direction\u003c\/li\u003e\n \u003cli\u003eInsert the new Microline S1227RS or S1229RS membrane into the housing with proper alignment\u003c\/li\u003e\n \u003cli\u003eReconnect the housing and turn on the water supply, then flush the system for 10-15 minutes to remove preservatives\u003c\/li\u003e\n \u003cli\u003eCheck all connections for leaks and monitor initial water quality before normal 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 Fit and Replacement Cross-Reference\u003c\/h2\u003e\n \u003cp\u003eThe Clack Microline S1227RS and S1229RS membranes are drop-in replacements for Clack Microline TFC-3 and TFC-4 reverse osmosis systems. These membranes replace part numbers TFC-335, TFC-435, T112-25 CLK, and T112-25-CLK. Verify your existing membrane model number before ordering to ensure proper fit and performance. All TFC membranes require upstream carbon pre-filtration to protect against chlorine damage, which will void the membrane's effectiveness and lifespan.\u003c\/p\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"pro-tip\"\u003e\n 🔧 \u003cstrong\u003ePro Tip:\u003c\/strong\u003e TFC membranes are highly efficient but chlorine-sensitive. Always confirm your carbon pre-filter is functioning and replaced on schedule (typically every 6-12 months) to prevent premature membrane failure. If you notice a sudden drop in production rate or TDS rejection, check your pre-filters first before assuming the membrane has failed.\n \u003c\/div\u003e\n\u003c\/div\u003e","brand":"Clack","offers":[{"title":"14 GPD - CTA","offer_id":35594160668834,"sku":"S-1224RS","price":83.0,"currency_code":"USD","in_stock":true},{"title":"25 GPD - TFC","offer_id":35594160701602,"sku":"S-1227RS","price":75.0,"currency_code":"USD","in_stock":true},{"title":"50 GPD TFC","offer_id":35594160734370,"sku":"S-1229RS","price":67.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0446\/7677\/6098\/files\/product-5536958480546-padded.jpg?v=1777260509"},{"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 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.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 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":174.93,"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-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=1759500814"},{"product_id":"watts-w-1812-100-r-o-tfc-membrane-100-gpd","title":"Watts (W-1812) Thin Film Composite Replacement Reverse Osmosis 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-hero\"\u003e\n\u003cdiv class=\"ro-eyebrow\"\u003eWatts Premier Reverse Osmosis Components\u003c\/div\u003e\n\u003ch2\u003e\n\u003cem\u003eWatts W-1812 Thin Film Composite\u003c\/em\u003e Replacement RO Membrane\u003c\/h2\u003e\n\u003cdiv class=\"ro-tagline\"\u003eIndustry-standard 1.8\" x 11.75\" TFC membrane delivering 96% salt rejection for residential reverse osmosis systems\u003c\/div\u003e\n\u003cdiv class=\"ro-badges\"\u003e\n\u003cspan class=\"ro-badge\"\u003e✓ NSF\/ANSI Standard 58 Listed\u003c\/span\u003e\n\u003cspan class=\"ro-badge\"\u003e✓ 96% Contaminant Rejection\u003c\/span\u003e\n\u003cspan class=\"ro-badge\"\u003e✓ Fits Most Conventional Units\u003c\/span\u003e\n\u003cspan class=\"ro-badge\"\u003e✓ Ships Dry for Extended Shelf Life\u003c\/span\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"ro-callout\"\u003e\n\u003cp\u003eThe Watts W-1812 membrane uses advanced thin film composite technology to remove dissolved solids, heavy metals, chlorine, and microorganisms from drinking water. Measuring \u003cstrong\u003e1.8\" diameter x 11.75\" length\u003c\/strong\u003e and rated for \u003cstrong\u003e125 psi maximum pressure\u003c\/strong\u003e, this membrane delivers consistent performance across most standard residential RO systems. Automated fabrication ensures reliability that dealers and homeowners depend on.\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 the W-1812 Membrane Reliable\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\u003eHigh Rejection Rate\u003c\/h3\u003e\n\u003cp\u003e96% salt rejection effectively removes ions, dissolved solids, and contaminants while maintaining consistent water quality over the membrane's service life\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\u003eUniversal Fit\u003c\/h3\u003e\n\u003cp\u003eStandard 1.8\" x 11.75\" dimensions fit most conventional residential RO systems without modification, making replacement straightforward\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\u003eDurable Construction\u003c\/h3\u003e\n\u003cp\u003eThin film composite material withstands temperatures up to 125°F and pressures to 125 psi while maintaining structural integrity\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\u003eDry Shipment\u003c\/h3\u003e\n\u003cp\u003eShips in dry condition for convenient handling, extended shelf life, and easy storage until installation\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\u003eNSF Certified\u003c\/h3\u003e\n\u003cp\u003eNSF\/ANSI Standard 58 listing verifies the membrane meets strict material safety and performance requirements for drinking water treatment\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\u003eLightweight Design\u003c\/h3\u003e\n\u003cp\u003eAt just 10 ounces, the membrane is easy to handle during installation and replacement procedures\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 W-1812 membrane is compatible with most standard residential reverse osmosis systems using 1.8\" diameter membrane housings. This includes systems from Watts Premier, as well as many other manufacturers utilizing the 1812 form factor. Also designated as the W-1812-100 in 100 GPD configurations. Suitable for under-sink RO systems, countertop units, and whole-house applications where point-of-use purification is required. Verify your existing membrane dimensions before ordering to ensure proper fit.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"ro-callout\"\u003e\n\u003cp\u003eWatts reverse osmosis membranes are built on decades of water treatment experience, trusted by equipment suppliers and residential customers for consistent, reliable performance.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003c\/div\u003e","brand":"Watts","offers":[{"title":"24 GPD","offer_id":35578608287906,"sku":"W-1812-24","price":74.47,"currency_code":"USD","in_stock":true},{"title":"36 GPD","offer_id":35578608320674,"sku":"W-1812-36","price":77.02,"currency_code":"USD","in_stock":true},{"title":"50 GPD","offer_id":35578608353442,"sku":"W-1812-50","price":74.59,"currency_code":"USD","in_stock":true},{"title":"75 GPD","offer_id":35578608386210,"sku":"W-1812-75","price":79.11,"currency_code":"USD","in_stock":true},{"title":"100 GPD","offer_id":35578608418978,"sku":"W-1812-100","price":105.14,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0446\/7677\/6098\/files\/watts-w-1812-thin-film-composite-replacement-reverse-osmosis-membrane-588758.jpg?v=1762460629"},{"product_id":"puregen-qme-25050-12-proq-50-gpd-membrane","title":"Puregen (QME-25050) 12\" PROQ 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 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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\"\u003ePuregen \/ Puroflo\u003c\/div\u003e\n\u003ch2\u003ePuregen QME-25050 12\" PROQ 50 GPD Membrane\u003c\/h2\u003e\n\u003cdiv class=\"ro-tagline\"\u003ePolyamide thin-film composite membrane for reliable residential reverse osmosis filtration\u003c\/div\u003e\n\u003cdiv class=\"ro-badges\"\u003e\n\u003cspan class=\"ro-badge\"\u003e50 GPD Capacity\u003c\/span\u003e\n\u003cspan class=\"ro-badge\"\u003e12\" Membrane\u003c\/span\u003e\n\u003cspan class=\"ro-badge\"\u003eTFC Construction\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-callout\"\u003e\n\u003cp\u003eThe Puregen QME-25050 is a 50 gallon per day reverse osmosis membrane designed for standard residential RO systems. Its polyamide thin-film composite construction removes dissolved solids, heavy metals, bacteria, and chemical contaminants while maintaining consistent flow rates for daily household use.\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\"\u003eTechnical Details\u003c\/div\u003e\n\u003ctable class=\"specs-table\"\u003e\n\u003ctr\u003e\n\u003ctd class=\"spec-key\"\u003eModel Number\u003c\/td\u003e\n\u003ctd class=\"spec-val\"\u003eQME-25050\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"spec-key\"\u003eMembrane Type\u003c\/td\u003e\n\u003ctd class=\"spec-val\"\u003ePolyamide Thin-Film Composite (TFC)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"spec-key\"\u003eDaily Capacity\u003c\/td\u003e\n\u003ctd class=\"spec-val\"\u003e50 Gallons Per Day (GPD)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"spec-key\"\u003eDimensions\u003c\/td\u003e\n\u003ctd class=\"spec-val\"\u003e12\" Length\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"spec-key\"\u003eApplication\u003c\/td\u003e\n\u003ctd class=\"spec-val\"\u003eResidential Reverse Osmosis Systems\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"spec-key\"\u003eReplacement Interval\u003c\/td\u003e\n\u003ctd class=\"spec-val\"\u003eEvery 2-3 years\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"spec-key\"\u003eRemoves\u003c\/td\u003e\n\u003ctd class=\"spec-val\"\u003eDissolved solids, lead, chlorine, bacteria, chemicals\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\"\u003eSystem Requirements\u003c\/div\u003e\n\u003cp\u003eThe QME-25050 membrane fits standard 12-inch residential reverse osmosis systems using 1812 membrane housings. Compatible with most Puroflo, Puregen, and similar branded RO units with 50 GPD membrane specifications. Verify your system's membrane size and GPD rating 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\u003cdiv class=\"ro-title\"\u003eReplacement Guidelines\u003c\/div\u003e\n\u003cp\u003eMembrane lifespan depends on incoming water quality, TDS levels, and daily usage volume. Replace the QME-25050 every 2-3 years under typical conditions, or sooner if you notice reduced flow rate, increased permeate TDS, or changes in water taste. Pre-filters should be changed on schedule to protect membrane life and maintain rejection rates.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003c\/div\u003e","brand":"Puregen","offers":[{"title":"Default Title","offer_id":35472148988066,"sku":"QME-25050-W","price":107.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0446\/7677\/6098\/files\/puregen-qme-25050-12-proq-50-gpd-membrane-833949.jpg?v=1759500879"},{"product_id":"rainsoft-compatible-tfc-rs9-50-tfc-50-gpd-reverse-osmosis-membrane","title":"Good Water - Rainsoft Compatible TFC Reverse Osmosis Membrane","description":"\u003cp\u003e \u003c\/p\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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!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\"\u003eThe Good Water TFC-RS9-50 delivers reliable up to 50 GPD reverse osmosis performance for Rainsoft, Sears, and Kenmore residential systems. This thin-film composite membrane strips out dissolved solids, heavy metals, and contaminants down to 0.0001 microns for consistently clean drinking water.\u003c\/div\u003e\n\u003cdiv class=\"ro-section\"\u003e\n\u003cdiv class=\"ro-label\"\u003eSPECIFICATIONS\u003c\/div\u003e\n\u003ch2 class=\"ro-title\"\u003eTFC-RS9 Membrane Details\u003c\/h2\u003e\n\u003ctable class=\"specs-table\" style=\"width: 99.9345%;\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 42.4352%;\"\u003eModel Number\u003c\/td\u003e\n\u003ctd style=\"width: 57.4804%;\"\u003eTFC-RS9\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 42.4352%;\"\u003eDaily Production\u003c\/td\u003e\n\u003ctd style=\"width: 57.4804%;\"\u003e12, 22, 50 gallons per day (GPD)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 42.4352%;\"\u003eMembrane Type\u003c\/td\u003e\n\u003ctd style=\"width: 57.4804%;\"\u003eThin-Film Composite (TFC)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 42.4352%;\"\u003eFiltration Rating\u003c\/td\u003e\n\u003ctd style=\"width: 57.4804%;\"\u003e0.0001 microns\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 42.4352%;\"\u003eDimensions\u003c\/td\u003e\n\u003ctd style=\"width: 57.4804%;\"\u003e1.8\" diameter × 10\" length\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 42.4352%;\"\u003eApplication\u003c\/td\u003e\n\u003ctd style=\"width: 57.4804%;\"\u003eResidential reverse osmosis systems\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 42.4352%;\"\u003eReplacement Interval\u003c\/td\u003e\n\u003ctd style=\"width: 57.4804%;\"\u003e24-36 months depending on water quality\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 42.4352%;\"\u003eOperating Pressure\u003c\/td\u003e\n\u003ctd style=\"width: 57.4804%;\"\u003e40-80 PSI recommended\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\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 Membrane\u003c\/h2\u003e\n\u003col class=\"install-steps\"\u003e\n\u003cli\u003eShut off water supply to the RO system and open the faucet to relieve pressure\u003c\/li\u003e\n\u003cli\u003eRemove the membrane housing cap and slide out the old membrane, noting the direction of water flow arrows\u003c\/li\u003e\n\u003cli\u003eInsert the new TFC-RS9-50 membrane with flow arrows pointing toward the output side of the housing\u003c\/li\u003e\n\u003cli\u003eReassemble the housing, turn water supply back on, and flush the system for 30 minutes before use\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003c\/div\u003e\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\u003eThis Good Water membrane is engineered as a direct replacement for Rainsoft TFC reverse osmosis systems, including models using the RS9-50 specification. It also fits compatible Sears and Kenmore branded RO units that accept standard 1.8\" × 10\" TFC membranes. Verify your existing membrane dimensions before ordering to ensure proper fitment in your housing.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"pro-tip\"\u003e🔧 \u003cstrong\u003ePro tip:\u003c\/strong\u003e Replace your sediment and carbon pre-filters before installing a new membrane. Worn pre-filters force the membrane to handle contaminants it wasn't designed for, cutting its lifespan in half.\u003c\/div\u003e\n\u003c\/div\u003e","brand":"Rainsoft","offers":[{"title":"12 GPD","offer_id":35642470662306,"sku":"TFC-RS9-12","price":50.27,"currency_code":"USD","in_stock":true},{"title":"22 GPD","offer_id":35642470695074,"sku":"TFC-RS9-22","price":57.9,"currency_code":"USD","in_stock":true},{"title":"50 GPD","offer_id":35642470727842,"sku":"TFC-RS9-50","price":59.97,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0446\/7677\/6098\/files\/good-water-rainsoft-compatible-tfc-reverse-osmosis-membrane-457559.jpg?v=1759500899"},{"product_id":"pura-qcro-quick-change-reverse-osmosis-membrane","title":"Aqua Flo QCRO Quick-Change Reverse Osmosis 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\" 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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\"\u003eAqua Flo by Hydrotech\u003c\/div\u003e\n\u003ch2\u003eQCRO Quick-Change Reverse Osmosis Membrane\u003c\/h2\u003e\n\u003cdiv class=\"ro-tagline\"\u003eTool-free replacement membrane for the QCRO 4-Stage system, available in 50 GPD and 75 GPD flow rates\u003c\/div\u003e\n\u003cdiv class=\"ro-badges\"\u003e\n\u003cspan class=\"ro-badge\"\u003eQuick-Change Design\u003c\/span\u003e\n\u003cspan class=\"ro-badge\"\u003eTDS Reduction\u003c\/span\u003e\n\u003cspan class=\"ro-badge\"\u003e24-Month Service Life\u003c\/span\u003e\n\u003cspan class=\"ro-badge\"\u003eResidential Grade\u003c\/span\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"ro-callout\"\u003e\n\u003cp\u003eThe Aqua Flo QCRO Membrane is the core filtration element in the QCRO 4-Stage Quick Change Reverse Osmosis System, engineered to reduce total dissolved solids, heavy metals, chlorine, and microbial contaminants. The twist-lock housing design allows membrane replacement without tools, reducing downtime and simplifying maintenance for residential installations.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"ro-section\"\u003e\n\u003cdiv class=\"ro-label\"\u003eWHAT IT REMOVES\u003c\/div\u003e\n\u003ch3 class=\"ro-title\"\u003eContaminant Reduction\u003c\/h3\u003e\n\u003cp\u003eThis reverse osmosis membrane provides multi-barrier filtration targeting dissolved solids (TDS) including lead, arsenic, and fluoride, residual chlorine and volatile organic compounds that affect taste and odor, and bacteria and microorganisms through semi-permeable membrane technology. The RO process delivers consistent purified water for drinking, cooking, and beverage preparation.\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\"\u003eTechnical Details\u003c\/h3\u003e\n\u003ctable class=\"specs-table\"\u003e\n\u003ctr\u003e\n\u003ctd class=\"spec-label\"\u003eMembrane Type\u003c\/td\u003e\n\u003ctd class=\"spec-value\"\u003eReverse Osmosis (RO)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"spec-label\"\u003eFlow Rate Options\u003c\/td\u003e\n\u003ctd class=\"spec-value\"\u003e50 GPD or 75 GPD\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"spec-label\"\u003eTechnology\u003c\/td\u003e\n\u003ctd class=\"spec-value\"\u003eQuick-Change, tool-free installation\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\"\u003e24 months\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"spec-label\"\u003eApplication\u003c\/td\u003e\n\u003ctd class=\"spec-value\"\u003eResidential water filtration\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 Requirements\u003c\/h3\u003e\n\u003cp\u003eThis membrane is designed exclusively for the Aqua Flo QCRO 4-Stage Quick Change Reverse Osmosis System. The quick-change housing uses a twist-lock mechanism that eliminates the need for filter wrenches or tools during replacement. After installing a new membrane, flush the system for 5 to 10 minutes to clear manufacturing residue and ensure optimal water quality.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003c\/div\u003e","brand":"Hydrotech","offers":[{"title":"50 GPD","offer_id":35641831719074,"sku":"41407003","price":81.99,"currency_code":"USD","in_stock":true},{"title":"75 GPD","offer_id":35641831751842,"sku":"41407008","price":84.63,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0446\/7677\/6098\/files\/product-5537080213666-padded.jpg?v=1777247940"},{"product_id":"hydrotech-thin-film-composite-replacement-reverse-osmosis-membrane","title":"Hydrotech Thin Film Composite Replacement Reverse Osmosis 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 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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-hero\"\u003e\n\u003cdiv class=\"ro-eyebrow\"\u003eHydrotech Genuine OEM Replacement\u003c\/div\u003e\n\u003ch2\u003e\n\u003cem\u003eHydrotech Thin Film Composite\u003c\/em\u003e Reverse Osmosis Membrane\u003c\/h2\u003e\n\u003cdiv class=\"ro-tagline\"\u003eHigh-rejection TFC membrane for residential RO systems — 75 GPD flow rate for consistent purified water\u003c\/div\u003e\n\u003cdiv class=\"ro-badges\"\u003e\n\u003cspan class=\"ro-badge\"\u003e✓ Genuine Hydrotech TFC membrane\u003c\/span\u003e\n\u003cspan class=\"ro-badge\"\u003e✓ 75 gallons per day capacity\u003c\/span\u003e\n\u003cspan class=\"ro-badge\"\u003e✓ Fits HT123 \u0026amp; 1240 Series\u003c\/span\u003e\n\u003cspan class=\"ro-badge\"\u003e✓ Dry-packaged for extended shelf life\u003c\/span\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"ro-callout\"\u003e\n\u003cp\u003eThe Hydrotech TFC reverse osmosis membrane is the core filtration component in your RO system, using your home's water pressure to force molecules through a semi-permeable barrier while rejecting dissolved solids, heavy metals, and contaminants. This genuine Hydrotech replacement delivers \u003cstrong\u003e75 gallons per day\u003c\/strong\u003e and is compatible with HT123, 1240 Series, and E, M \u0026amp; Pro Systems. Packaged dry to maintain indefinite shelf life until installation.\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\"\u003eThin Film Composite Technology\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\u003eHigh Rejection Rate\u003c\/h3\u003e\n\u003cp\u003eTFC membrane technology provides superior contaminant rejection compared to standard cellulose membranes, removing dissolved solids, heavy metals, and microscopic impurities\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\u003e75 GPD Flow Rate\u003c\/h3\u003e\n\u003cp\u003eConsistent 75 gallon per day production rate ensures adequate purified water supply for residential drinking, cooking, and beverage preparation needs\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\u003eDry-Packed Design\u003c\/h3\u003e\n\u003cp\u003eShipped and stored dry to extend shelf life indefinitely until installation — no degradation or bacterial growth during storage\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\u003eOEM Compatibility\u003c\/h3\u003e\n\u003cp\u003eGenuine Hydrotech membrane engineered specifically for HT123, 1240 Series, E, M, and Pro system housings with proper fit and seal\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\u003eChlorine Pre-Filtration Required\u003c\/h3\u003e\n\u003cp\u003eMust be used downstream of carbon pre-filter when treating chlorinated municipal water to prevent membrane damage and ensure longevity\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\u003eTemperature Sensitive Storage\u003c\/h3\u003e\n\u003cp\u003eStore between 35-50°F in unfrozen conditions — freezing will permanently damage the membrane structure and void warranty\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\"\u003eCompatible Hydrotech RO Systems\u003c\/h3\u003e\n\u003cp\u003eThis Hydrotech TFC membrane is a direct replacement for the following Hydrotech reverse osmosis systems: \u003cstrong\u003eHT123 Series\u003c\/strong\u003e, \u003cstrong\u003e1240 Series\u003c\/strong\u003e, \u003cstrong\u003eF-HT-75\u003c\/strong\u003e, \u003cstrong\u003eF-HTF-75\u003c\/strong\u003e, and Hydrotech E, M, and Pro Systems. Designed for residential point-of-use applications treating municipally-treated or well water sources. The 75 GPD capacity is ideal for households of 2-5 people with typical drinking water consumption.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"ro-callout\"\u003e\n\u003cp\u003eHydrotech membranes are manufactured to OEM specifications and deliver the performance your system was designed around.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003c\/div\u003e","brand":"Hydrotech","offers":[{"title":"9 GPD","offer_id":42266013860011,"sku":"414-000-01","price":122.03,"currency_code":"USD","in_stock":true},{"title":"15 GPD","offer_id":35641598804130,"sku":"41400004","price":199.0,"currency_code":"USD","in_stock":true},{"title":"25 GPD","offer_id":35641598836898,"sku":"33001068","price":79.0,"currency_code":"USD","in_stock":true},{"title":"50 GPD","offer_id":35641598869666,"sku":"33001033","price":89.0,"currency_code":"USD","in_stock":true},{"title":"75 GPD","offer_id":35641598902434,"sku":"33001056","price":159.22,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0446\/7677\/6098\/files\/hydrotech-thin-film-composite-replacement-reverse-osmosis-membrane-608402.jpg?v=1762460836"},{"product_id":"csm-re1812-50-50-gpd-tap-water-membrane","title":"CSM (RE1812) Thin Film Composite Replacement Residential Reverse Osmosis 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 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!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-callout\"\u003e\n The CSM RE1812 thin film composite membrane delivers residential-grade reverse osmosis filtration with up to 99% contaminant rejection in a standard 1.8\" x 12\" housing. Built by Toray for dependable performance, this membrane fits most conventional home RO systems and removes dissolved solids, heavy metals, and microorganisms from your tap 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\"\u003eCSM RE1812 Membrane Technical Details\u003c\/h2\u003e\n \u003ctable class=\"specs-table\"\u003e\n \u003ctr\u003e\n \u003ctd\u003eModel Number\u003c\/td\u003e\n \u003ctd\u003eCSM RE1812\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003ctd\u003eMembrane Type\u003c\/td\u003e\n \u003ctd\u003eThin Film Composite (TFC)\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003ctd\u003eDimensions\u003c\/td\u003e\n \u003ctd\u003e1.8\" diameter x 12\" length\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003ctd\u003eDaily Production\u003c\/td\u003e\n \u003ctd\u003e50 GPD (gallons per day)\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003ctd\u003eSalt Rejection Rate\u003c\/td\u003e\n \u003ctd\u003eUp to 99% (500 mg\/L NaCl @ 60 psi)\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003ctd\u003eOperating Pressure\u003c\/td\u003e\n \u003ctd\u003e60 psi net pressure (4.1 bar)\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003ctd\u003eOptimal Temperature\u003c\/td\u003e\n \u003ctd\u003e77°F (25°C)\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003ctd\u003eReplacement Interval\u003c\/td\u003e\n \u003ctd\u003e24-36 months 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\"\u003eINSTALLATION \u0026amp; USE\u003c\/div\u003e\n \u003ch2 class=\"ro-title\"\u003eReplacing Your RO Membrane\u003c\/h2\u003e\n \u003col class=\"install-steps\"\u003e\n \u003cli\u003eShut off water supply to the RO system and depressurize by opening the faucet until water stops flowing\u003c\/li\u003e\n \u003cli\u003eUnscrew the membrane housing cap, remove the old membrane, and inspect the housing for sediment or fouling\u003c\/li\u003e\n \u003cli\u003eInsert the new CSM RE1812 membrane into the housing with the rubber gasket end first, ensuring it seats fully\u003c\/li\u003e\n \u003cli\u003eReinstall the housing cap hand-tight, turn water supply back on, and flush the system for 30 minutes before use\u003c\/li\u003e\n \u003cli\u003eCheck for leaks at all connections and verify that your drain flow restrictor matches the membrane's 50 GPD rating\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 Fitment\u003c\/h2\u003e\n \u003cp\u003eThe CSM RE1812 membrane fits any residential reverse osmosis system using a standard 1812 housing, including systems from APEC, iSpring, Home Master, Watts, and other manufacturers. If you're upgrading from a different capacity membrane (18 GPD, 75 GPD, 100 GPD), you'll need to match your drain flow restrictor to the 50 GPD rating to prevent premature fouling. This membrane handles municipal water and well water applications when paired with appropriate sediment and carbon pre-filtration.\u003c\/p\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"pro-tip\"\u003e\n 🔧 \u003cstrong\u003ePro tip:\u003c\/strong\u003e Individual membrane flux can vary by 15% from rated specs. If your production rate drops below expected output after a year, check your pre-filters first—a clogged sediment or carbon filter will choke flow to the membrane and make it seem like the RO element is failing when it's actually fine.\n \u003c\/div\u003e\n\u003c\/div\u003e","brand":"Toray","offers":[{"title":"36 GPD","offer_id":35578444251298,"sku":"RE1812-36","price":39.99,"currency_code":"USD","in_stock":true},{"title":"50 GPD","offer_id":35578444284066,"sku":"RE1812-50","price":39.99,"currency_code":"USD","in_stock":true},{"title":"60 GPD","offer_id":35578444316834,"sku":"RE1812-60","price":39.99,"currency_code":"USD","in_stock":true},{"title":"80 GPD","offer_id":35578444349602,"sku":"RE1812-80","price":49.99,"currency_code":"USD","in_stock":true},{"title":"100 GPD","offer_id":35578444382370,"sku":"RE2012-100","price":54.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0446\/7677\/6098\/files\/product-5537248018594-padded.jpg?v=1777261846"},{"product_id":"suez-ak-90-4-x-40-high-rejection-2300-gpd-replacement-reverse-osmosis-membrane-product-flow-120-psi","title":"SUEZ AK-90; 4\" x 40\"; High Rejection; 2300 GPD; Replacement Reverse Osmosis Membrane - (Product Flow @ 120 PSI) (Veolia)","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\"\u003eSUEZ Commercial RO Membrane\u003c\/div\u003e\n\u003ch2\u003eAK-90 \u003cem\u003eHigh Rejection Thin-Film Membrane\u003c\/em\u003e\n\u003c\/h2\u003e\n\u003cp class=\"ro-tagline\"\u003e4\" x 40\" low-pressure brackish water element delivering 2,300 GPD at 120 PSI with 99.5% average salt rejection for commercial reverse osmosis systems\u003c\/p\u003e\n\u003cdiv class=\"ro-badges\"\u003e\n\u003cspan class=\"stage-tag\"\u003eMEMBRANE\u003c\/span\u003e\n\u003cspan class=\"ro-badge\"\u003e99.5% NaCl Rejection\u003c\/span\u003e\n\u003cspan class=\"ro-badge\"\u003e90 ft² Active Area\u003c\/span\u003e\n\u003cspan class=\"ro-badge\"\u003e400 PSI Max\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 High Rejection at Low Operating Pressure\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\u003eEnergy Efficient Design\u003c\/h3\u003e\n\u003cp\u003eAK HR proprietary thin-film composite achieves excellent rejection at pressures as low as 100 PSI, significantly reducing energy costs compared to standard brackish membranes\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 Rejection Performance\u003c\/h3\u003e\n\u003cp\u003eMinimum 99.0% NaCl rejection with 99.5% average ensures consistent permeate quality from feed water up to 5,000 mg\/L TDS without requiring higher pressure\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\u003eMaximum Active Area\u003c\/h3\u003e\n\u003cp\u003e90 square feet of membrane surface area in a standard 4\" x 40\" configuration provides 2,300 GPD production at 120 PSI with optimal fouling resistance\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\u003eWide Operating Range\u003c\/h3\u003e\n\u003cp\u003eRated for temperatures up to 122°F and pressures up to 400 PSI, allowing flexibility across commercial brackish water applications including tap water and low-salinity sources\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 Standard 4\" Commercial RO Housings\u003c\/h3\u003e\n\u003cp\u003eDirect replacement for SUEZ AK-90, AK4040TF, and GE Desal 1206816 membrane elements. Compatible with commercial reverse osmosis systems using 4-inch diameter, 40-inch length membrane housings with 0.75\" permeate tube connection. Suitable for brackish water, tap water, and process water applications requiring high rejection and low energy consumption.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"ro-section\"\u003e\n\u003cdiv class=\"ro-label\"\u003eTECHNICAL SPECIFICATIONS\u003c\/div\u003e\n\u003ch3 class=\"ro-title\"\u003eAK-90 Performance Data\u003c\/h3\u003e\n\u003cdiv class=\"specs-table\"\u003e\n\u003cdiv class=\"spec-row\"\u003e\n\u003cspan class=\"spec-label\"\u003eModel\u003c\/span\u003e\n\u003cspan class=\"spec-value\"\u003eAK-90 (AK4040TF)\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"spec-row\"\u003e\n\u003cspan class=\"spec-label\"\u003eElement Type\u003c\/span\u003e\n\u003cspan class=\"spec-value\"\u003eThin-Film Composite Brackish Water\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"spec-row\"\u003e\n\u003cspan class=\"spec-label\"\u003eDimensions\u003c\/span\u003e\n\u003cspan class=\"spec-value\"\u003e4\" diameter × 40\" length (101.6 cm)\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"spec-row\"\u003e\n\u003cspan class=\"spec-label\"\u003eActive Membrane Area\u003c\/span\u003e\n\u003cspan class=\"spec-value\"\u003e90 ft² (8.3 m²)\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"spec-row\"\u003e\n\u003cspan class=\"spec-label\"\u003ePermeate Flow Rate\u003c\/span\u003e\n\u003cspan class=\"spec-value\"\u003e2,300 GPD (8.7 m³\/day) @ 120 PSI\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"spec-row\"\u003e\n\u003cspan class=\"spec-label\"\u003eNaCl Rejection\u003c\/span\u003e\n\u003cspan class=\"spec-value\"\u003e99.5% average \/ 99.0% minimum\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"spec-row\"\u003e\n\u003cspan class=\"spec-label\"\u003eMax Operating Pressure\u003c\/span\u003e\n\u003cspan class=\"spec-value\"\u003e400 PSI (2,758 kPa)\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"spec-row\"\u003e\n\u003cspan class=\"spec-label\"\u003eMax Temperature\u003c\/span\u003e\n\u003cspan class=\"spec-value\"\u003e122°F (48.6°C)\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"spec-row\"\u003e\n\u003cspan class=\"spec-label\"\u003ePermeate Connection\u003c\/span\u003e\n\u003cspan class=\"spec-value\"\u003e0.75\" (1.91 cm)\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"spec-row\"\u003e\n\u003cspan class=\"spec-label\"\u003eShipping Weight\u003c\/span\u003e\n\u003cspan class=\"spec-value\"\u003e8.8 lbs (4.0 kg)\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"spec-row\"\u003e\n\u003cspan class=\"spec-label\"\u003eRecommended TDS Range\u003c\/span\u003e\n\u003cspan class=\"spec-value\"\u003eUp to 5,000 mg\/L\u003c\/span\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\u003eLower Operating Costs\u003c\/h4\u003e\n\u003cp\u003eAchieves high rejection at reduced pressure, cutting energy consumption and extending equipment life\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"benefit-item\"\u003e\n\u003cdiv class=\"bi-icon\"\u003e🔧\u003c\/div\u003e\n\u003ch4\u003eReduced Downtime\u003c\/h4\u003e\n\u003cp\u003eSUEZ TFC membrane construction delivers consistent performance with minimal fouling in brackish applications\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"benefit-item\"\u003e\n\u003cdiv class=\"bi-icon\"\u003e♻️\u003c\/div\u003e\n\u003ch4\u003eIncreased Water Recovery\u003c\/h4\u003e\n\u003cp\u003eEfficient low-pressure operation enables higher recovery rates, reducing wastewater and maximizing system output\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"benefit-item\"\u003e\n\u003cdiv class=\"bi-icon\"\u003e🏭\u003c\/div\u003e\n\u003ch4\u003eVersatile Applications\u003c\/h4\u003e\n\u003cp\u003eProven across drinking water, process water, food and beverage, and industrial applications requiring reliable purification\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003c\/div\u003e","brand":"Suez","offers":[{"title":"Default Title","offer_id":35473486053538,"sku":"3056678","price":599.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0446\/7677\/6098\/files\/product-5537264631970-padded.jpg?v=1777270110"},{"product_id":"suez-ak4040fm-4-x-40-2300-gpd-tfc-replacement-reverse-osmosis-membrane-product-flow-107-psi","title":"SUEZ AK4040FM; 4\" x 40\" 2300 GPD; TFC Replacement Reverse Osmosis Membrane - (Product Flow @ 107 PSI) (Veolia)","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 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!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\n\u003cdiv class=\"ro-hero\"\u003e\n\u003cdiv class=\"ro-eyebrow\"\u003eCommercial Reverse Osmosis Membrane\u003c\/div\u003e\n\u003ch2\u003eSUEZ \u003cem\u003eAK4040FM\u003c\/em\u003e Low Energy TFC Membrane\u003c\/h2\u003e\n\u003cdiv class=\"ro-tagline\"\u003eHigh-flux thin-film composite membrane engineered for brackish water applications at operating pressures as low as 107 PSI\u003c\/div\u003e\n\u003cdiv class=\"ro-badges\"\u003e\n\u003cspan class=\"ro-badge\"\u003e2300 GPD @ 107 PSI\u003c\/span\u003e\n\u003cspan class=\"ro-badge\"\u003e4\" × 40\"\u003c\/span\u003e\n\u003cspan class=\"ro-badge\"\u003eVeolia \/ SUEZ\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\"\u003eLow-Pressure Performance for Commercial 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\u003eLow Energy Operation\u003c\/h3\u003e\n\u003cp\u003eAK-Series design delivers 2300 gallons per day at just 107 PSIG, reducing pump load and energy costs in commercial installations\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\u003eThin-Film Composite\u003c\/h3\u003e\n\u003cp\u003eTFC membrane construction provides excellent sodium chloride rejection and high flux rates for brackish water and tap water applications\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\u003eStandard 4040 Format\u003c\/h3\u003e\n\u003cp\u003eIndustry-standard 4 inch by 40 inch configuration with male end connections fits most commercial RO 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\u003e28 Mil Feed Spacers\u003c\/h3\u003e\n\u003cp\u003eFiber outer wrap with optimized feed spacer thickness balances flow distribution and pressure drop across the membrane surface\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\"\u003eDirect Replacement for SUEZ \/ Veolia Systems\u003c\/h3\u003e\n\u003cp\u003eThe AK4040FM membrane replaces SUEZ A-Series and AG-Series elements in commercial brackish water systems. Compatible with standard 4 inch membrane housings rated for 107 PSI or higher operating pressure. Designed for municipal tap water and brackish groundwater applications where high rejection and low operating pressure are required.\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 2-3 Years\u003c\/div\u003e\n\u003ch4\u003eStandard Replacement\u003c\/h4\u003e\n\u003cp\u003eReplace membrane when permeate flow drops 15% or salt rejection falls below acceptable levels for your application\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"schedule-card\"\u003e\n\u003cdiv class=\"interval\"\u003eEvery 3-6 Months\u003c\/div\u003e\n\u003ch4\u003eChemical Cleaning\u003c\/h4\u003e\n\u003cp\u003eClean with approved RO cleaners if normalized pressure drop increases or flow decreases due to fouling or scaling\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"schedule-card\"\u003e\n\u003cdiv class=\"interval\"\u003eMonthly\u003c\/div\u003e\n\u003ch4\u003ePerformance Monitoring\u003c\/h4\u003e\n\u003cp\u003eLog flow rate, pressure, and TDS readings to track membrane performance and plan cleaning or replacement\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\u003eLower Operating Costs\u003c\/h4\u003e\n\u003cp\u003eLow-energy design reduces pump power requirements and extends system component life\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"benefit-item\"\u003e\n\u003cdiv class=\"bi-icon\"\u003e🏭\u003c\/div\u003e\n\u003ch4\u003eCommercial Grade\u003c\/h4\u003e\n\u003cp\u003eSUEZ\/Veolia manufacturing standards for consistent performance in demanding applications\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 Fitment\u003c\/h4\u003e\n\u003cp\u003eDrop-in replacement for 4x40 membrane housings with male end connections\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003c\/div\u003e","brand":"Suez","offers":[{"title":"Default Title","offer_id":35473509286050,"sku":"3039082","price":399.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0446\/7677\/6098\/files\/product-5537267810466-padded.jpg?v=1777270138"}],"url":"https:\/\/www.isopurewater.com\/collections\/nav-ro-membranes.oembed","provider":"Isopure Water","version":"1.0","type":"link"}