{"product_id":"nitrate-removal-inline-filter-ro-cartridge","title":"Nitrate Removal Inline Filter RO Cartridge","description":"\u003cp\u003e\u003cstrong\u003eNitrate has no taste, color or smell, and it reaches wells quietly: from fertilizer, septic systems and animal waste soaking down into groundwater.\u003c\/strong\u003e Shallow wells in farm country are the most likely to carry it, and a water test is the only way to know your level.\u003c\/p\u003e\u003cp\u003eIf your test shows nitrate, this inline cartridge, part CQE-RC-04061, adds a dedicated nitrate-reduction stage where you drink: before or after a point-of-use RO membrane, on an ice maker or refrigerator line, or inside a water cooler or fountain. It is filled with nitrate-selective resin, and unlike a throwaway filter, its media can be restored with salt.\u003c\/p\u003e\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/1286\/9985\/files\/nitrate_shallow_gw_480x480.png?v=1603757995\" alt=\"USGS map of predicted nitrate in shallow US groundwater, mostly low with hot spots over 10 mg\/L\"\u003e\u003c\/p\u003e\u003ch3\u003eAt a glance\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eA dedicated nitrate stage\u003c\/strong\u003e for point-of-use systems, separate from your carbon and sediment stages\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNitrate-selective resin\u003c\/strong\u003e that trades harmless chloride for nitrate as water flows through\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRestorable with salt:\u003c\/strong\u003e periodic salt regeneration puts the media back to work\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFits where you need it:\u003c\/strong\u003e pre or post RO, refrigerator and ice maker lines, water coolers and fountains\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMade in the USA,\u003c\/strong\u003e as printed on the cartridge label\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eWhat you are looking at\u003c\/h3\u003e\u003cp\u003eA white, sealed inline cartridge with an elbow connector at each end. The label reads \"Crystal Quest Nitrate Reduction Inline Cartridge\" and shows the flow arrow, part number, operating limits and nine numbered replacement steps. The resin beads are sealed inside; you service the cartridge as one piece.\u003c\/p\u003e\u003ch3\u003eHow nitrate-selective resin works\u003c\/h3\u003e\u003ch4\u003eIon exchange: a one-for-one trade\u003c\/h4\u003e\u003cp\u003eThe resin is a bed of tiny plastic beads covered in positively charged sites. Out of the box, each site holds a chloride ion. Nitrate is also a negatively charged ion, so as water flows past, nitrate is pulled onto the sites and chloride is released in its place. The nitrate stays on the resin; the water leaves with a little chloride, the same ion found in table salt.\u003c\/p\u003e\u003ch4\u003eWhy \"selective\" matters\u003c\/h4\u003e\u003cp\u003eOrdinary anion resin prefers sulfate over nitrate. In water with sulfate, an ordinary resin can let captured nitrate go again as it fills up, so the treated water can briefly carry more nitrate than the water going in. Nitrate-selective resin is built to favor nitrate, so it holds on to what it has captured and gives you a steadier result.\u003c\/p\u003e\u003ch4\u003eRegeneration: resetting the resin with salt\u003c\/h4\u003e\u003cp\u003eEvery site that holds a nitrate ion is a site that cannot take another. When most sites are full, the resin is exhausted. Soaking it in a strong salt solution floods the beads with chloride, which pushes the nitrate off and reloads the sites, ready to work again. That is the periodic salt regeneration this cartridge is designed for. If it is skipped, the media stops reducing nitrate.\u003c\/p\u003e\n\u003ch3\u003eWhat it reduces\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003ePrimary target (printed on the cartridge label):\u003c\/strong\u003e nitrate.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eNot designed to treat:\u003c\/strong\u003e chlorine and chemical tastes, VOCs, metals, fluoride, arsenic, or bacteria and viruses. Those are handled by other stages, such as a \u003ca href=\"https:\/\/crystalquest.com\/products\/water-cooler-reverse-osmosis-multi-stage-filter-cartridge\"\u003eSMART inline cartridge\u003c\/a\u003e and the RO membrane. Use it only on water that is microbiologically safe. Many wells with nitrate also need a bacteria test.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs it right for my water?\u003c\/strong\u003e Start with a lab test for nitrate, and keep the result: your nitrate level decides how often the resin needs regenerating. Nitrate matters most in homes where infants drink the water or where formula is mixed. If your nitrate is high, or you want treatment for the whole house, talk to a Crystal Quest specialist before choosing a point-of-use stage.\u003c\/p\u003e\u003ch3\u003eWhy Crystal Quest\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSelective resin, not a general-purpose filter.\u003c\/strong\u003e Nitrate gets its own stage with media built to favor it.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRestorable media.\u003c\/strong\u003e Salt regeneration resets the resin, so one cartridge keeps working through repeated cycles instead of being thrown away at first exhaustion.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMade for our systems.\u003c\/strong\u003e Crystal Quest lists this cartridge as the optional nitrate stage for its under-sink RO, countertop RO and water cooler systems.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOver 1,000,000 people served since 1994.\u003c\/strong\u003e Crystal Quest builds under ISO 9001 quality management, has made water filtration in the USA for over 30 years and offers lifetime support by phone, email or chat.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eWhere it fits\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eThunder under-sink RO systems:\u003c\/strong\u003e listed as the optional nitrate cartridge, CQE-RC-04061, on Thunder system pages such as the \u003ca href=\"https:\/\/crystalquest.com\/products\/reverse-osmosis-under-sink-water-filter-1000c\"\u003eThunder 1000C\u003c\/a\u003e.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThe \u003ca href=\"https:\/\/crystalquest.com\/products\/countertop-reverse-osmosis-water-filters\"\u003eCountertop Reverse Osmosis System\u003c\/a\u003e:\u003c\/strong\u003e listed as its optional nitrate stage.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBottleless water coolers:\u003c\/strong\u003e listed as an optional cartridge in the water cooler manual.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRefrigerator and ice maker lines:\u003c\/strong\u003e plumbed inline on the supply tubing. It is not a slot-in replacement for a refrigerator's built-in filter.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eOptional inline specialty cartridges do not have one fixed position in every system. Its published applications include pre and post point-of-use RO; install it where your system's manual specifies. Need nitrate treatment in a standard drop-in housing? See the \u003ca href=\"https:\/\/crystalquest.com\/products\/nitrate-filter-cartridge\"\u003eNitrate Removal Filter Cartridge\u003c\/a\u003e.\u003c\/p\u003e\u003ch3\u003eCommon questions\u003c\/h3\u003e\u003cdiv class=\"cq-product-faq\"\u003e\n\u003cdetails\u003e\u003csummary\u003e\u003cstrong\u003eDoes this cartridge need maintenance?\u003c\/strong\u003e\u003c\/summary\u003e\u003cp\u003eYes. When the media is used up, replace the cartridge or regenerate it with a salt (brine) solution by running it through the line; the nitrate level in your water sets how often. Contact Crystal Quest for the procedure before the first service.\u003c\/p\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003e\u003cstrong\u003eHow does a nitrate filter cartridge remove nitrate?\u003c\/strong\u003e\u003c\/summary\u003e\u003cp\u003eThrough ion exchange. Nitrate-selective resin swaps chloride for nitrate as water flows through, and holds the nitrate until salt regeneration washes it off.\u003c\/p\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003e\u003cstrong\u003eDoes it add salt to my water?\u003c\/strong\u003e\u003c\/summary\u003e\u003cp\u003eIt releases a small amount of chloride in exchange for the nitrate it captures. It does not soften water or add sodium the way a water softener does.\u003c\/p\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003e\u003cstrong\u003eWhere does it go in my system?\u003c\/strong\u003e\u003c\/summary\u003e\u003cp\u003eOptional inline specialty cartridges do not have one fixed position in every system. Its published applications include pre and post point-of-use RO; install it where your system's manual specifies.\u003c\/p\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003e\u003cstrong\u003eHow is it different from the drop-in Nitrate Removal Filter Cartridge?\u003c\/strong\u003e\u003c\/summary\u003e\u003cp\u003eThat cartridge fits standard drop-in housings in four sizes. This one is an inline cartridge for coolers, appliance lines and point-of-use RO systems.\u003c\/p\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003e\u003cstrong\u003eShould I test my water first?\u003c\/strong\u003e\u003c\/summary\u003e\u003cp\u003eYes. Confirm nitrate with a water test; the nitrate level also sets how often the media needs regenerating. Retest the treated water to know when it is due.\u003c\/p\u003e\u003c\/details\u003e\n\u003c\/div\u003e\n###\n\u003ch3\u003ePublished cartridge specifications\u003c\/h3\u003e\u003ch3\u003eApplications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003ePre and post point-of-use reverse osmosis\u003c\/li\u003e\n\u003cli\u003eIce maker and refrigerator\u003c\/li\u003e\n\u003cli\u003eWater cooler\/fountain\u003c\/li\u003e\n\u003c\/ul\u003e\u003ctable width=\"100%\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd valign=\"middle\"\u003e\u003cstrong\u003eSKU\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd valign=\"middle\"\u003e\u003cstrong\u003eDESCRIPTION\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd valign=\"middle\"\u003eCQE-RC-04061\u003c\/td\u003e\n\u003ctd valign=\"middle\"\u003eInline nitrate reduction cartridge; media requires periodic salt regeneration\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003cp\u003e\u003cstrong\u003eMedia and function\u003c\/strong\u003e\u003c\/p\u003e\n\u003ctable width=\"100%\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eMedia\u003c\/td\u003e\n\u003ctd\u003e\u003ca href=\"\/products\/eaglesorb-nitrate-resin\"\u003eEaglesorb Nitrate Removal\u003c\/a\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTarget\u003c\/td\u003e\n\u003ctd\u003eNitrate (label: removes\/reduces nitrate)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTreatment method\u003c\/td\u003e\n\u003ctd\u003eAnion exchange: chloride released, nitrate held\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRegeneration\u003c\/td\u003e\n\u003ctd\u003eReplace the cartridge, or regenerate it with a salt (brine) solution by running it through the line; frequency set by nitrate level; not needed before first use\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFormat\u003c\/td\u003e\n\u003ctd\u003eSealed inline cartridge, threaded elbow connector at each end, flow arrow on label\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003ctable width=\"100%\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eOperating Specifications (cartridge label)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd valign=\"top\"\u003e\u003cstrong\u003eValue\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e• Water supply\u003c\/td\u003e\n\u003ctd\u003eCold water only; microbiologically safe water\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e*Use only on water that is microbiologically safe. Flush about 15 minutes before first use.\u003c\/p\u003e\n\u003cp\u003e*Cartridge color is subject to change without notice.\u003c\/p\u003e\n","brand":"Crystal Quest Water Filters","offers":[{"title":"Single","offer_id":50861553025210,"sku":"CQE-RC-04061","price":59.0,"currency_code":"USD","in_stock":true},{"title":"Pack of 2","offer_id":50861553057978,"sku":"CQE-RC-04061-2PK","price":118.0,"currency_code":"USD","in_stock":true},{"title":"Pack of 4","offer_id":50861553090746,"sku":"CQE-RC-04061-4PK","price":236.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0769\/8087\/9546\/files\/nitrate-removal-inline-filter-ro-cartridge-crystal-quest-water-filter-cartridges-1263598068.webp?v=1793159919","url":"https:\/\/avif.site\/products\/nitrate-removal-inline-filter-ro-cartridge","provider":"AVIF.site","version":"1.0","type":"link"}