{"product_id":"ipw-industries-inc-tfcrs-1810-50-rs9-compatible-rainsoft-sears-and-kenmore-tfc-reverse-osmosis-membrane-50-gpd","title":"IPW Industries Inc (TFCRS-1810-50) RS9 Compatible Rainsoft, Sears, and Kenmore TFC Reverse Osmosis Membrane 50 GPD","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 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 .ro-feature-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(min(220px,100%),1fr));gap:16px;margin-top:4px;}\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 p{font-size:18px !important;color:#5a4500;line-height:1.6 !important;margin:0;display:block;width:100%;}\n  @media(max-width:640px){\n    .ro-wrap .ro-hero{padding:36px 24px 32px;}\n    .ro-wrap .ro-section{padding:28px 20px;}\n  }\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 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 .ro-label,\n  .ro-wrap .stage-tag { font-size: 14px !important; }\n  .ro-wrap .ro-title { font-size: 24px !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\"\u003eIPW Industries RS9 Replacement Membrane\u003c\/div\u003e\n\u003ch2\u003e50 GPD TFC Reverse Osmosis Membrane for Rainsoft, Sears, and Kenmore Systems\u003c\/h2\u003e\n\u003cdiv class=\"ro-tagline\"\u003eDirect replacement for RS9 membrane cartridges in residential thin-film composite RO systems\u003c\/div\u003e\n\u003cdiv class=\"ro-badges\"\u003e\n\u003cspan class=\"ro-badge\"\u003e50 GPD Output\u003c\/span\u003e \u003cspan class=\"ro-badge\"\u003e10\" x 1.8\" Standard\u003c\/span\u003e \u003cspan class=\"ro-badge\"\u003eTFC Technology\u003c\/span\u003e \u003cspan class=\"ro-badge\"\u003eRS9 Compatible\u003c\/span\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"ro-callout\"\u003e\n\u003cp\u003eThis IPW Industries thin-film composite membrane is engineered as a direct replacement for the RS9 cartridge used in Rainsoft, Sears, and Kenmore reverse osmosis systems. The 50 gallon-per-day rated membrane fits standard 10-inch housings and removes dissolved solids, heavy metals, and contaminants down to 0.0001 microns through semi-permeable TFC film technology.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"ro-section\"\u003e\n\u003cdiv class=\"ro-label\"\u003eHOW IT WORKS\u003c\/div\u003e\n\u003ch2 class=\"ro-title\"\u003eThin-Film Composite Separation\u003c\/h2\u003e\n\u003cdiv class=\"stage-pipeline\"\u003e\n\u003cdiv class=\"stage-row\"\u003e\n\u003cdiv class=\"stage-line\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv class=\"stage-num\"\u003e1\u003c\/div\u003e\n\u003cdiv class=\"stage-body\"\u003e\n\u003cspan class=\"stage-tag\"\u003ePRESSURE\u003c\/span\u003e\n\u003ch3\u003eFeed Water Enters\u003c\/h3\u003e\n\u003cp\u003ePre-filtered water enters the membrane housing under system pressure, typically 40-80 PSI, forcing molecules against the TFC barrier layer.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"stage-row\"\u003e\n\u003cdiv class=\"stage-line\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv class=\"stage-num\"\u003e2\u003c\/div\u003e\n\u003cdiv class=\"stage-body\"\u003e\n\u003cspan class=\"stage-tag\"\u003eSEPARATION\u003c\/span\u003e\n\u003ch3\u003eSelective Filtration\u003c\/h3\u003e\n\u003cp\u003eThe thin-film composite layer allows only pure water molecules to pass through while rejecting dissolved solids, salts, heavy metals, nitrates, and organic compounds at 0.0001 micron level.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"stage-row\"\u003e\n\u003cdiv class=\"stage-line\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv class=\"stage-num\"\u003e3\u003c\/div\u003e\n\u003cdiv class=\"stage-body\"\u003e\n\u003cspan class=\"stage-tag\"\u003eOUTPUT\u003c\/span\u003e\n\u003ch3\u003ePermeate and Reject\u003c\/h3\u003e\n\u003cp\u003ePurified water exits to the storage tank at approximately 50 gallons per day while concentrated waste water flushes contaminants to drain, maintaining membrane surface integrity.\u003c\/p\u003e\n\u003cspan class=\"stage-part\"\u003eReplace every 24-36 months\u003c\/span\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\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 Requirements\u003c\/h2\u003e\n\u003cp\u003eThis membrane is designed for Rainsoft reverse osmosis systems using the RS9 membrane cartridge, as well as compatible Sears and Kenmore models with 10-inch membrane housings. The 1.8-inch diameter fits standard residential TFC membrane housings. Verify your existing membrane dimensions before ordering. Best performance requires sediment and carbon pre-filtration, minimum 40 PSI feed pressure, and water temperatures between 40-100°F. Total dissolved solids rejection rate typically exceeds 95 percent with proper system maintenance.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"IPW Industries Inc","offers":[{"title":"Default Title","offer_id":48581913182379,"sku":"IPW : TFCRS-1810-50","price":34.8,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0446\/7677\/6098\/files\/product-8598515187883-padded_9a45a030-edb7-4e8c-b385-f4668f1b5464.jpg?v=1794360065","url":"https:\/\/www.isopurewater.com\/products\/ipw-industries-inc-tfcrs-1810-50-rs9-compatible-rainsoft-sears-and-kenmore-tfc-reverse-osmosis-membrane-50-gpd","provider":"Isopure Water","version":"1.0","type":"link"}