{"product_id":"csr-hard-water-large-home-system","title":"C-Series Hard Water — Large Home (Twin Tank) System","description":"\u003cstyle\u003e.m h3{color:#0d3b63;margin-top:20px}.m .hero{background:linear-gradient(135deg,#0d3b63,#1a5f9e);color:#fff;padding:18px;border-radius:12px}.m .hero h2{color:#fff;margin:0}.m .k{background:#eaf3fb;border-radius:10px;padding:12px 14px;margin:14px 0}.m ul{margin:8px 0}.m .spec{display:flex;gap:10px;flex-wrap:wrap;margin:12px 0}.m .spec div{background:#f4f8fc;border:1px solid #dbe8f4;border-radius:10px;padding:8px 12px;font-size:.92em}\u003c\/style\u003e\u003cdiv class=\"m\"\u003e\n\u003cdiv class=\"hero\"\u003e\n\u003ch2\u003eC-Series Hard Water — Large Home (Twin Tank) System\u003c\/h2\u003e\n\u003cp style=\"margin:6px 0 0;opacity:.93\"\u003eA complete C-Series system — control head valve, tank and the right media — engineered to solve hard water — large home (twin tank) for good.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"incl-banner-v1\" style=\"border:2px solid #0d3b63;border-radius:12px;padding:14px 16px;margin:0 0 16px;background:#eaf3fb\"\u003e\n\u003cdiv style=\"font-weight:700;color:#0d3b63;font-size:1.06em;margin-bottom:6px\"\u003e✓ Complete System — one price includes everything below\u003c\/div\u003e\n\u003cdiv style=\"font-size:.93em;color:#33475b;margin-bottom:8px\"\u003eYou're buying the entire working system — not a single component. This one price covers all of it, shipped free:\u003c\/div\u003e\n\u003cul style=\"margin:0;padding-left:20px\"\u003e\n\u003cli\u003e\n\u003cb\u003eControl valve head\u003c\/b\u003e — C-Series metered control valve\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eTank\u003c\/b\u003e — twin high-capacity resin tanks\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eMedia\u003c\/b\u003e — 10% cross-linked cation softening resin\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003ch3\u003eThe C-Series system that solves it\u003c\/h3\u003e\n\u003cp\u003eThis is a full C-Series system built on three parts that work together: a C-Series metered control valve on top of twin high-capacity resin tanks, filled with the media matched to your water. The valve meters your actual water use and regenerates only when needed, so it never wastes salt or water. One consistent C-Series platform means parts and service stay simple for the life of the system — fully serviceable, never a sealed throwaway unit.\u003c\/p\u003e\n\u003cdiv class=\"spec\"\u003e\n\u003cdiv\u003e\n\u003cb\u003eHead valve:\u003c\/b\u003e C-Series metered control valve\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cb\u003eTank:\u003c\/b\u003e twin high-capacity resin tanks\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cb\u003eMedia:\u003c\/b\u003e 10% cross-linked cation softening resin\u003c\/div\u003e\n\u003c\/div\u003e\n\u003ch3\u003eWhat it does for your home\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eRemoves hard water — large home from your water\u003c\/li\u003e\n\u003cli\u003eSpot-free dishes and glassware\u003c\/li\u003e\n\u003cli\u003eSofter skin and hair, far less soap and detergent\u003c\/li\u003e\n\u003cli\u003eLonger life for your water heater and appliances\u003c\/li\u003e\n\u003cli\u003eNo more scale on fixtures and tile\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cdiv class=\"k\"\u003e\n\u003cb\u003eWhy it works — the media does the job.\u003c\/b\u003e Inside the tank is \u003cb\u003e10% cross-linked cation softening resin\u003c\/b\u003e. In plain terms, it two tanks alternate so you get soft water 24\/7 with no hard-water gap. The C-Series head valve runs it; the media is what actually removes \u003ci\u003ehard water — large home (twin tank)\u003c\/i\u003e — that pairing is the real difference between systems.\u003c\/div\u003e\n\u003ch3\u003eSized and matched to your water\u003c\/h3\u003e\n\u003cp\u003ePick your home size above (1–3, 3–4 or 5–6 bathrooms) and we build it to your flow. Send a water test or your symptoms and we size it free. Ships free in the US with full install and service manuals. Need a matched multi-stage well package? See our same-brand C-Series well bundle.\u003c\/p\u003e\n\u003cp style=\"color:#5a6b7b;font-size:.9em\"\u003ePrefer a different valve brand? The same hard water — large home (twin tank) solution is available in \u003ca href=\"\/zh-hant-as\/pages\/fleck-water-systems\"\u003eFleck\u003c\/a\u003e, \u003ca href=\"\/zh-hant-as\/pages\/autotrol-water-systems\"\u003eAutotrol\u003c\/a\u003e, \u003ca href=\"\/zh-hant-as\/pages\/c-series-water-systems\"\u003eC-Series\u003c\/a\u003e, \u003ca href=\"\/zh-hant-as\/pages\/pentek-water-filters\"\u003ePentek\u003c\/a\u003e and \u003ca href=\"\/zh-hant-as\/pages\/pentair-water-systems\"\u003ePentair\u003c\/a\u003e — the media doing the work is the same.\u003c\/p\u003e\n\u003c\/div\u003e\u003c!--media-feat-v1--\u003e\u003cdiv style=\"border:1px solid #dbe8f4;border-radius:12px;padding:16px;margin:18px 0;background:#fbfdff\"\u003e\n\u003ch3 style=\"color:#0d3b63;margin:0 0 12px\"\u003eThe media inside — what actually cleans your water\u003c\/h3\u003e\n\u003cdiv style=\"display:flex;gap:14px;flex-wrap:wrap\"\u003e\u003cdiv style=\"display:flex;gap:12px;align-items:flex-start;flex:1;min-width:290px;border:1px solid #e3ecf5;border-radius:10px;padding:12px;background:#fff\"\u003e\n\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0552\/4950\/2261\/files\/cr10.jpg\" alt=\"Premium softening resin (10% cross-linked cation)\" style=\"width:118px;height:118px;object-fit:contain;border-radius:8px;border:1px solid #eef3f8;background:#fff;flex:0 0 auto\"\u003e\u003cdiv\u003e\n\u003cdiv style=\"font-weight:700;color:#0d3b63\"\u003ePremium softening resin (10% cross-linked cation)\u003c\/div\u003e\n\u003cul style=\"margin:6px 0 0;padding-left:16px;color:#33475b;font-size:.92em;line-height:1.4\"\u003e\n\u003cli\u003eGrabs and holds the calcium \u0026amp; magnesium that scale pipes, heaters and fixtures\u003c\/li\u003e\n\u003cli\u003eSofter skin \u0026amp; hair, brighter laundry, spot-free glasses and dishes\u003c\/li\u003e\n\u003cli\u003eHigh exchange capacity — fewer regenerations and less salt\u003c\/li\u003e\n\u003cli\u003eLong service life on a fully serviceable valve platform\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\u003c\/div\u003e\n\u003c\/div\u003e\u003c!--\/media-feat-v1--\u003e","brand":"C-Series","offers":[{"title":"64,000 Grains · Twin Tank · 2–4 Baths (13 GPM)","offer_id":45736805990453,"sku":"WSP-CSR-HARD-WATER-LARGE-HOME-S","price":1626.9,"currency_code":"USD","in_stock":true},{"title":"96,000 Grains · Twin Tank · 5–7 Baths (18 GPM)","offer_id":45736806023221,"sku":"WSP-CSR-HARD-WATER-LARGE-HOME-M","price":1912.9,"currency_code":"USD","in_stock":true},{"title":"128,000 Grains · Twin Tank · 8+ Baths (22 GPM)","offer_id":45736806055989,"sku":"WSP-CSR-HARD-WATER-LARGE-HOME-L","price":2308.9,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0552\/4950\/2261\/files\/card-csr-hard-water-large-home.jpg?v=1784145084","url":"https:\/\/watersoftenerplus.com\/zh-hant-as\/products\/csr-hard-water-large-home-system","provider":"Water Softener Plus","version":"1.0","type":"link"}