{"product_id":"omnipure-elf-xl-500-tfc-membrane","title":"Omnipure - ELF XL 500 TFC 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\"\u003eOmnipure High-Performance Membrane\u003c\/div\u003e\n\u003ch2\u003e\n\u003cem\u003eELF XL 500 TFC\u003c\/em\u003e Thin Film Composite Membrane\u003c\/h2\u003e\n\u003cp class=\"ro-tagline\"\u003eExtended-length 15\" TFC membrane engineered for higher flow capacity and reliable rejection in residential and light commercial reverse osmosis systems\u003c\/p\u003e\n\u003cdiv class=\"ro-badges\"\u003e\n\u003cspan class=\"ro-badge\"\u003e✓ 15-inch extended length\u003c\/span\u003e\n\u003cspan class=\"ro-badge\"\u003e✓ Thin Film Composite technology\u003c\/span\u003e\n\u003cspan class=\"ro-badge\"\u003e✓ 500 GPD rated capacity\u003c\/span\u003e\n\u003cspan class=\"ro-badge\"\u003e✓ Compatible with Omnipure XL housings\u003c\/span\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"ro-callout\"\u003e\n\u003cp\u003eThe Omnipure ELF XL 500 TFC Membrane delivers \u003cstrong\u003e500 gallons per day\u003c\/strong\u003e of high-purity water using proven thin film composite technology in an extended \u003cstrong\u003e15-inch format\u003c\/strong\u003e. Designed for systems requiring greater output than standard 10\" membranes without compromising rejection performance, this specialty membrane fits Omnipure ELF XL and compatible extended-length RO housings.\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\"\u003eWhy the ELF XL 500 TFC Stands Out\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\u003eExtended 15\" Length\u003c\/h3\u003e\n\u003cp\u003eLarger membrane surface area provides higher flow rates and longer service intervals compared to standard 10-inch 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\u003e500 GPD Capacity\u003c\/h3\u003e\n\u003cp\u003eRated for 500 gallons per day production, ideal for homes with high water demand or light 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\u003eTFC Technology\u003c\/h3\u003e\n\u003cp\u003eThin film composite construction offers superior rejection of dissolved solids, contaminants, and impurities across a wide pH range\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\u003eSpecialty Format\u003c\/h3\u003e\n\u003cp\u003ePurpose-built for Omnipure ELF XL and other extended-length RO systems requiring non-standard membrane dimensions\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\u003eConsistent Performance\u003c\/h3\u003e\n\u003cp\u003eEngineered for stable rejection rates and predictable permeate quality throughout the membrane lifespan\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\u003eOmnipure Quality\u003c\/h3\u003e\n\u003cp\u003eManufactured to strict tolerances with quality materials for dependable operation in demanding water treatment environments\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\"\u003eWhere This Membrane Fits\u003c\/h3\u003e\n\u003cp\u003eThe ELF XL 500 TFC is designed specifically for Omnipure extended-length reverse osmosis systems and compatible 15-inch membrane housings. Ideal for residential whole-home systems, drinking water applications requiring higher daily volume, aquarium and hydroponics setups, small office or café installations, and any application where standard 10\" membranes fall short on capacity. Verify housing compatibility before ordering, as this specialty size requires appropriately sized XL-format housings.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"ro-callout\"\u003e\n\u003cp\u003eOmnipure membranes are trusted by water treatment professionals for consistent performance and reliable specifications in specialty filtration applications.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003c\/div\u003e","brand":"Isopure Water","offers":[{"title":"Default Title","offer_id":46425963692203,"sku":"ELF XL 500","price":484.69,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0446\/7677\/6098\/files\/product-8726641868971-padded.jpg?v=1777267720","url":"https:\/\/www.isopurewater.com\/products\/omnipure-elf-xl-500-tfc-membrane","provider":"Isopure Water","version":"1.0","type":"link"}