{"product_id":"flk-nitrate-system","title":"Fleck Nitrate \u0026 Nitrite (Well) Filter","description":"\u003cdiv class=\"m\"\u003e\n\u003cdiv class=\"hero\"\u003e\n\u003ch2\u003eFleck Nitrate \u0026amp; Nitrite (Well) System\u003c\/h2\u003e\n\u003cp style=\"margin:6px 0 0;opacity:.93\"\u003eA complete Fleck system — control head valve, tank and the right media — engineered to solve nitrate \u0026amp; nitrite (well) 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 — Fleck 5810 SXT metered control valve\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eTank\u003c\/b\u003e — a specialty ion-exchange tank\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eMedia\u003c\/b\u003e — nitrate-selective anion resin\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003ch3\u003eThe Fleck system that solves it\u003c\/h3\u003e\n\u003cp\u003eThis is a full Fleck system built on three parts that work together: a genuine Fleck 5810 SXT metered control valve on top of a specialty ion-exchange tank, 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 Fleck 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 Fleck 5810 SXT metered control valve\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cb\u003eTank:\u003c\/b\u003e a specialty ion-exchange tank\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cb\u003eMedia:\u003c\/b\u003e nitrate-selective anion 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 nitrate \u0026amp; nitrite from your water\u003c\/li\u003e\n\u003cli\u003eTargets and removes the specific contaminant\u003c\/li\u003e\n\u003cli\u003eConsistent capacity between regenerations\u003c\/li\u003e\n\u003cli\u003eWhole-home protection at every tap\u003c\/li\u003e\n\u003cli\u003eServiceable, refillable media — never a sealed box\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\u003enitrate-selective anion resin\u003c\/b\u003e. In plain terms, it exchanges nitrate out and holds it even during sulfate spikes. The Fleck head valve runs it; the media is what actually removes \u003ci\u003enitrate \u0026amp; nitrite (well)\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 Fleck well bundle.\u003c\/p\u003e\n\u003cp style=\"color:#5a6b7b;font-size:.9em\"\u003ePrefer a different valve brand? The same nitrate \u0026amp; nitrite (well) solution is available in \u003ca href=\"\/en-am\/pages\/fleck-water-systems\"\u003eFleck\u003c\/a\u003e, \u003ca href=\"\/en-am\/pages\/autotrol-water-systems\"\u003eAutotrol\u003c\/a\u003e, \u003ca href=\"\/en-am\/pages\/c-series-water-systems\"\u003eC-Series\u003c\/a\u003e, \u003ca href=\"\/en-am\/pages\/pentek-water-filters\"\u003ePentek\u003c\/a\u003e and \u003ca href=\"\/en-am\/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\/cr26_1.jpg\" alt=\"Selective exchange resin\" 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\"\u003eSelective exchange resin\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\u003eTargets the specific contaminant — tannin, nitrate, arsenic, uranium or PFAS\u003c\/li\u003e\n\u003cli\u003eLeaves beneficial minerals in place\u003c\/li\u003e\n\u003cli\u003eHigh selective capacity for reliable reduction\u003c\/li\u003e\n\u003cli\u003eRegenerates for long service life\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\u003c!--rel-sys-v1--\u003e\u003cdiv class=\"related-systems\"\u003e\n\u003ch3\u003eRelated Systems \u0026amp; Configurations\u003c\/h3\u003e\n\u003cp\u003eComparing options? These related commercial water-treatment systems are frequently viewed alongside this one:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003ca href=\"\/en-am\/products\/flk-iron-bacteria-system\"\u003eFleck Iron Bacteria \u0026amp; Slime Filter\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/en-am\/products\/flk-scale-water-heater-system\"\u003eFleck Scale in the Water Heater System\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/en-am\/products\/flk-soap-lather-system\"\u003eFleck Soap Won't Lather System\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c!-- WSP-CTA-CHECKOUT --\u003e\n\u003cdiv style=\"border:2px solid #0b3b73;border-radius:12px;padding:18px;margin:26px 0;background:#f7fafc;\"\u003e\n\u003ch2 style=\"margin:0 0 4px;font-size:1.25rem;color:#0b3b73;\"\u003eGet this system — pick your size and check out\u003c\/h2\u003e\n\u003cp style=\"margin:0 0 14px;color:#33415c;\"\u003eSized by bathroom count and flow rate. Every option below is the\ncomplete system. Choosing a size takes one click straight to secure checkout, where you'll see the\ncurrent price before you pay.\u003c\/p\u003e\n\u003ctable style=\"width:100%;border-collapse:collapse;margin:0 0 12px;\"\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:10px 12px;border-bottom:1px solid #e3e8ef;\"\u003e\n\u003cstrong\u003e1.0 cu ft · 1–3 Baths (10 GPM)\u003c\/strong\u003e \u003cspan style=\"background:#0b3b73;color:#fff;font-size:11px;padding:2px 7px;border-radius:10px;vertical-align:middle;\"\u003eMOST POPULAR\u003c\/span\u003e\n\u003c\/td\u003e\n\u003ctd style=\"padding:10px 12px;border-bottom:1px solid #e3e8ef;text-align:right;\"\u003e\u003ca href=\"\/en-am\/cart\/45736777941045:1\" style=\"display:inline-block;background:#0b3b73;color:#fff;text-decoration:none;font-weight:700;padding:10px 18px;border-radius:8px;white-space:nowrap;\"\u003eBuy now →\u003c\/a\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:10px 12px;border-bottom:1px solid #e3e8ef;\"\u003e\u003cstrong\u003e1.5 cu ft · 4–6 Baths (12 GPM)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:10px 12px;border-bottom:1px solid #e3e8ef;text-align:right;\"\u003e\u003ca href=\"\/en-am\/cart\/45736777973813:1\" style=\"display:inline-block;background:#0b3b73;color:#fff;text-decoration:none;font-weight:700;padding:10px 18px;border-radius:8px;white-space:nowrap;\"\u003eBuy now →\u003c\/a\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:10px 12px;border-bottom:1px solid #e3e8ef;\"\u003e\u003cstrong\u003e2.0 cu ft · 6+ Baths (15 GPM)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:10px 12px;border-bottom:1px solid #e3e8ef;text-align:right;\"\u003e\u003ca href=\"\/en-am\/cart\/45736778006581:1\" style=\"display:inline-block;background:#0b3b73;color:#fff;text-decoration:none;font-weight:700;padding:10px 18px;border-radius:8px;white-space:nowrap;\"\u003eBuy now →\u003c\/a\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003cp style=\"margin:0 0 6px;color:#22543d;font-weight:600;\"\u003e✓ Free shipping anywhere in the US\n ·  ✓ Monthly payments available at checkout\u003c\/p\u003e\n\u003cp style=\"margin:0;color:#4a5568;font-size:.95rem;\"\u003eNot sure which size fits your home? Use the\n\u003ca href=\"\/en-am\/pages\/water-softener-sizing-chart\" style=\"color:#0b3b73;font-weight:600;\"\u003esizing chart\u003c\/a\u003e,\nsee \u003ca href=\"\/en-am\/pages\/financing\" style=\"color:#0b3b73;font-weight:600;\"\u003efinancing options\u003c\/a\u003e, or\n\u003ca href=\"\/en-am\/pages\/request-a-product\" style=\"color:#0b3b73;font-weight:600;\"\u003eask a water expert\u003c\/a\u003e\nbefore you buy.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Fleck","offers":[{"title":"1.0 cu ft · 1–3 Baths (10 GPM)","offer_id":45736777941045,"sku":"WSP-FLK-NITRATE-S","price":1690.0,"currency_code":"USD","in_stock":true},{"title":"1.5 cu ft · 4–6 Baths (12 GPM)","offer_id":45736777973813,"sku":"WSP-FLK-NITRATE-M","price":2298.33,"currency_code":"USD","in_stock":true},{"title":"2.0 cu ft · 6+ Baths (15 GPM)","offer_id":45736778006581,"sku":"WSP-FLK-NITRATE-L","price":2811.33,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0552\/4950\/2261\/files\/card-flk-nitrate-system_2a50ba3b-c27c-471e-b415-e0df0082436f.jpg?v=1784144961","url":"https:\/\/watersoftenerplus.com\/en-am\/products\/flk-nitrate-system","provider":"Water Softener Plus","version":"1.0","type":"link"}