{"product_id":"arsenic-removal-filter-cartridge","title":"Arsenic Removal Filter Cartridge","description":"\u003cp\u003e\u003cstrong\u003eArsenic has no taste, no odor and no color.\u003c\/strong\u003e Water can look perfect and still carry it, and the only way to know is a water test. Arsenic is highly toxic and has been classified by the EPA as a carcinogen, and the drinking water limit is just 10 parts per billion.\u003c\/p\u003e\u003cp\u003eThe Crystal Quest Arsenic Removal Filter Cartridge is a dedicated arsenic stage for well water and other sources where a test has found arsenic. It is filled with Eagle Arsenic Oxide, Crystal Quest's iron hydroxide arsenic media, designed to capture both forms of arsenic found in water, arsenic V (arsenate) and arsenic III (arsenite), in a standard drop-in cartridge.\u003c\/p\u003e\u003ch3\u003eAt a glance\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eTargets arsenic,\u003c\/strong\u003e both arsenic V and arsenic III\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCapacity with conditions:\u003c\/strong\u003e 1,000 to 60,000 gallons by size, rated at under 100 ppm hardness\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNo electricity, drain line or chemicals:\u003c\/strong\u003e it works in a standard filter housing\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFour sizes, 0.5 to 6 GPM,\u003c\/strong\u003e for countertop, under-sink and whole house housings\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eA dedicated stage,\u003c\/strong\u003e or pair it with SMART for broad filtration\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eWhat you are looking at\u003c\/h3\u003e\u003cp\u003eEach cartridge holds a bed of arsenic-selective media in polyolefin inner and outer wraps and polyethylene netting, closed with polypropylene end caps and sealed with Buna-N gaskets. Water flows through the media bed, where the arsenic stays behind. Each end cap has 1-micron pads behind its openings.\u003c\/p\u003e\u003ch3\u003eHow an arsenic filter cartridge works\u003c\/h3\u003e\u003ch4\u003eWhere arsenic comes from\u003c\/h4\u003e\u003cp\u003eArsenic does not dissolve easily, so when it turns up in a water supply it usually traces back to natural mineral deposits, mining and metal processing, or runoff from land where arsenic compounds were once used as pesticides. Private wells carry the highest risk because no utility tests them for you.\u003c\/p\u003e\u003ch4\u003eTwo forms, two behaviors\u003c\/h4\u003e\u003cp\u003eArsenic V (arsenate) is the oxidized form. At normal water pH it carries a negative charge, so selective media grab it quickly and hold it tightly. Arsenic III (arsenite) is common in low-oxygen groundwater. At normal pH it carries no charge, so it is slower to capture. Media designed for both forms still work best when most of the arsenic is arsenic V, which is why a well with mostly arsenic III may benefit from an oxidation step ahead of the cartridge.\u003c\/p\u003e\u003ch4\u003eWhat competes for the media\u003c\/h4\u003e\u003cp\u003eArsenic and phosphate are chemical look-alikes and easily substitute for one another, so phosphate in the water competes for the same sites. Other anions, such as sulfate, compete too. The more of them your water carries, the sooner the media fills. That is why the capacity table states its condition, and why your full water test matters as much as the arsenic number.\u003c\/p\u003e\u003ch4\u003eWhy capacity has conditions\u003c\/h4\u003e\u003cp\u003eEvery microgram of arsenic the cartridge captures uses part of its capacity. Crystal Quest rates each size at under 100 ppm hardness instead of quoting a bare gallon number. Higher arsenic, phosphate or flow uses capacity faster.\u003c\/p\u003e\n\u003ch3\u003eWhat it reduces\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003ePrimary target:\u003c\/strong\u003e arsenic, both arsenic V (arsenate) and arsenic III (arsenite). Capacity is rated for each size in the Specifications tab.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eNot designed to treat:\u003c\/strong\u003e bacteria and viruses, nitrate, fluoride, hardness, iron, or chlorine and chemical tastes. Use it only on microbiologically safe water.\u003c\/p\u003e\u003ch3\u003eIs it right for my water?\u003c\/h3\u003e\u003cp\u003eStart with a lab test for total arsenic, and ask the lab to report arsenic III and arsenic V separately if it can. Add phosphate, sulfate, iron and pH to the same test. With those numbers, Crystal Quest can tell you which size fits your arsenic load and whether an oxidation stage ahead of the cartridge will help.\u003c\/p\u003e\u003cp\u003eIf you want arsenic reduction and broad chemical filtration from one stage, the \u003ca href=\"https:\/\/crystalquest.com\/products\/arsenic-smart-filter-carrtridge\"\u003eArsenic Removal + SMART Filter Cartridge\u003c\/a\u003e combines arsenic-selective media with carbon and redox media. For a whole home, ask us about an arsenic tank system.\u003c\/p\u003e\u003ch3\u003eWhy Crystal Quest\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBuilt for both forms of arsenic,\u003c\/strong\u003e with the chemistry explained so you know what to test for.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNumbers you can plan with.\u003c\/strong\u003e Every size carries a gallon rating and the hardness condition behind it.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eA complete arsenic lineup:\u003c\/strong\u003e this dedicated cartridge, the SMART combination and whole house arsenic 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\u003eCountertop and under-sink systems\u003c\/strong\u003e that take the 2-7\/8\" x 9-3\/4\" size, for arsenic-reduced drinking and cooking water.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWhole house cartridge systems\u003c\/strong\u003e with slim 20\" or Big Blue housings.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eChoose the size printed on your current cartridge or in your order history: 2-7\/8\" x 9-3\/4\" (CQE-RC-04008), 2-7\/8\" x 20\" (CQE-RC-04021), 4-5\/8\" x 9-3\/4\" (CQE-RC-04067) or 4-5\/8\" x 20\" (CQE-RC-04070).\u003c\/p\u003e\u003ch3\u003eCommon questions\u003c\/h3\u003e\u003cdiv class=\"cq-product-faq\"\u003e\n\u003cdetails\u003e\u003csummary\u003e\u003cstrong\u003eDoes it remove both arsenic III and arsenic V?\u003c\/strong\u003e\u003c\/summary\u003e\u003cp\u003eThe media is designed for both forms. Arsenic V is captured fastest. If your test shows mostly arsenic III, ask Crystal Quest about an oxidation step ahead of the cartridge so more of it reaches the media as arsenic V.\u003c\/p\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003e\u003cstrong\u003eIs this a good arsenic filter cartridge for well water?\u003c\/strong\u003e\u003c\/summary\u003e\u003cp\u003eYes. Wells are where most arsenic shows up, because no utility tests or treats them. Test first so you know your arsenic level and form, then choose the size.\u003c\/p\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003e\u003cstrong\u003eHow long does an arsenic filter cartridge last?\u003c\/strong\u003e\u003c\/summary\u003e\u003cp\u003eCapacity is rated at under 100 ppm hardness: 1,000 gallons for the 2-7\/8\" x 9-3\/4\", 3,000 for the 2-7\/8\" x 20\", 30,000 for the 4-5\/8\" x 9-3\/4\" and 60,000 for the 4-5\/8\" x 20\". Higher arsenic, phosphate or flow shortens that.\u003c\/p\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003e\u003cstrong\u003eHow does this differ from the Arsenic + SMART cartridge?\u003c\/strong\u003e\u003c\/summary\u003e\u003cp\u003eThis is the dedicated arsenic cartridge. The SMART combination adds carbon and redox media for chlorine, chemical and heavy metal reduction in the same cartridge.\u003c\/p\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003e\u003cstrong\u003eWhy does phosphate matter?\u003c\/strong\u003e\u003c\/summary\u003e\u003cp\u003ePhosphate is chemically similar to arsenic and competes for the same sites in the media. Water with more phosphate fills the media sooner, so include phosphate in your water test.\u003c\/p\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003e\u003cstrong\u003eWhich size fits my housing?\u003c\/strong\u003e\u003c\/summary\u003e\u003cp\u003eMatch the actual size on your current cartridge: 2-7\/8\" x 9-3\/4\" fits 2.5\" x 10\" housings, 2-7\/8\" x 20\" fits 2.5\" x 20\", 4-5\/8\" x 9-3\/4\" fits 5\" x 10\" Big Blue and 4-5\/8\" x 20\" fits 5\" x 20\" Big Blue. Each size has its own flow and capacity.\u003c\/p\u003e\u003c\/details\u003e\n\u003c\/div\u003e\n###\n\u003ch3\u003eArsenic filter cartridge specifications\u003c\/h3\u003e\u003cp\u003ePublished ratings apply to the selected cartridge and listed conditions. Capacity is an estimate that depends on incoming water contaminants and usage.\u003c\/p\u003e\u003ctable width=\"100%\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd valign=\"middle\"\u003e\u003cstrong\u003eITEM NUMBER\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd valign=\"middle\"\u003e\u003cb\u003eSIZE\u003c\/b\u003e\u003c\/td\u003e\n\u003ctd valign=\"middle\"\u003e\u003cb\u003eFITS HOUSING\u003c\/b\u003e\u003c\/td\u003e\n\u003ctd valign=\"middle\"\u003e\u003cb\u003eFLOW RATE\u003c\/b\u003e\u003c\/td\u003e\n\u003ctd valign=\"middle\"\u003e\u003cstrong\u003eCAPACITY\u003cbr\u003e(\u0026lt;100 PPM HARDNESS)\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd valign=\"middle\"\u003eCQE-RC-04008\u003c\/td\u003e\n\u003ctd valign=\"middle\"\u003e2-7\/8” x 9-3\/4”\u003c\/td\u003e\n\u003ctd valign=\"middle\"\u003e2.5\" x 10\"\u003c\/td\u003e\n\u003ctd valign=\"middle\"\u003e.5 gpm (1.9 lpm)\u003c\/td\u003e\n\u003ctd valign=\"middle\"\u003e1,000 gallons*\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd valign=\"middle\"\u003eCQE-RC-04021\u003c\/td\u003e\n\u003ctd valign=\"middle\"\u003e2-7\/8” x 20”\u003c\/td\u003e\n\u003ctd valign=\"middle\"\u003e2.5\" x 20\"\u003c\/td\u003e\n\u003ctd valign=\"middle\"\u003e2.5 gpm (9.4 lpm)\u003c\/td\u003e\n\u003ctd valign=\"middle\"\u003e3,000 gallons*\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd valign=\"middle\"\u003eCQE-RC-04067\u003c\/td\u003e\n\u003ctd valign=\"middle\"\u003e4-5\/8” x 9-3\/4”\u003c\/td\u003e\n\u003ctd valign=\"middle\"\u003e5\" x 10\" Big Blue\u003c\/td\u003e\n\u003ctd valign=\"middle\"\u003e3 gpm (11.4 lpm)\u003c\/td\u003e\n\u003ctd valign=\"middle\"\u003e30,000 gallons*\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd valign=\"middle\"\u003eCQE-RC-04070\u003c\/td\u003e\n\u003ctd valign=\"middle\"\u003e4-5\/8” x 20”\u003c\/td\u003e\n\u003ctd valign=\"middle\"\u003e5\" x 20\" Big Blue\u003c\/td\u003e\n\u003ctd valign=\"middle\"\u003e6 gpm (22.7 lpm)\u003c\/td\u003e\n\u003ctd valign=\"middle\"\u003e60,000 gallons*\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003cp\u003e\u003cstrong\u003eMedia and treatment\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\/eagleoxide-arsenic-resin\"\u003eEagle Arsenic Oxide\u003c\/a\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTargets\u003c\/td\u003e\n\u003ctd\u003eArsenic V (arsenate) and arsenic III (arsenite)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCompeting ions\u003c\/td\u003e\n\u003ctd\u003ePhosphate and sulfate share the media's sites and shorten life\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCapacity conditions\u003c\/td\u003e\n\u003ctd\u003eUnder 100 ppm hardness\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRegeneration\u003c\/td\u003e\n\u003ctd\u003eNone. Replace when spent\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWater quality\u003c\/td\u003e\n\u003ctd\u003eUse only on microbiologically safe water\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\u003eConstruction Materials\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003eOperating Specifications\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e• Polypropylene End Caps\u003c\/td\u003e\n\u003ctd\u003e• Minimum Operating Pressure: 20 psi (1.4 bar)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e• Polyolefin Inner\/Outer Wraps\u003c\/td\u003e\n\u003ctd\u003e• Maximum Operating Pressure: 60 psi (4.1 bar)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e• Polyethylene Netting\u003c\/td\u003e\n\u003ctd\u003e• Minimum Operating Temperature: 40° F (4° C)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd valign=\"top\"\u003e• Buna-N Gaskets End Caps\u003c\/td\u003e\n\u003ctd valign=\"top\"\u003e• Maximum Operating Temperature: 90° F (32° C)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd valign=\"top\"\u003e• End Pads: 1-micron pads behind the end-cap openings\u003c\/td\u003e\n\u003ctd valign=\"top\"\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e*Capacity is an estimate at under 100 ppm hardness. Actual life depends on incoming water contaminants and usage.\u003c\/p\u003e\n","brand":"Crystal Quest Water Filters","offers":[{"title":"2-7\/8\" x 9-3\/4\" \/ Single","offer_id":67807311954008,"sku":"CQE-RC-04008","price":79.0,"currency_code":"USD","in_stock":true},{"title":"2-7\/8\" x 9-3\/4\" \/ Pack of 2","offer_id":67807311986776,"sku":"CQE-RC-04008-2PK","price":158.0,"currency_code":"USD","in_stock":true},{"title":"2-7\/8\" x 9-3\/4\" \/ Pack of 4","offer_id":67807312019544,"sku":"CQE-RC-04008-4PK","price":316.0,"currency_code":"USD","in_stock":true},{"title":"2-7\/8\" x 20\" \/ Single","offer_id":67807312052312,"sku":"CQE-RC-04021","price":178.0,"currency_code":"USD","in_stock":true},{"title":"2-7\/8\" x 20\" \/ Pack of 2","offer_id":67807312085080,"sku":"CQE-RC-04021-2PK","price":356.0,"currency_code":"USD","in_stock":true},{"title":"2-7\/8\" x 20\" \/ Pack of 4","offer_id":67807312117848,"sku":"CQE-RC-04021-4PK","price":712.0,"currency_code":"USD","in_stock":true},{"title":"4-5\/8” x 9-3\/4” \/ Single","offer_id":67807312150616,"sku":"CQE-RC-04067","price":184.0,"currency_code":"USD","in_stock":true},{"title":"4-5\/8” x 9-3\/4” \/ Pack of 2","offer_id":67807312183384,"sku":"CQE-RC-04067-2PK","price":368.0,"currency_code":"USD","in_stock":true},{"title":"4-5\/8” x 9-3\/4” \/ Pack of 4","offer_id":67807312216152,"sku":"CQE-RC-04067-4PK","price":736.0,"currency_code":"USD","in_stock":true},{"title":"4-5\/8” x 20” \/ Single","offer_id":67807312248920,"sku":"CQE-RC-04070","price":261.0,"currency_code":"USD","in_stock":true},{"title":"4-5\/8” x 20” \/ Pack of 2","offer_id":67807312281688,"sku":"CQE-RC-04070-2PK","price":522.0,"currency_code":"USD","in_stock":true},{"title":"4-5\/8” x 20” \/ Pack of 4","offer_id":67807312314456,"sku":"CQE-RC-04070-4PK","price":1044.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0862\/1250\/9784\/files\/arsenic-removal-filter-cartridge-crystal-quest-water-filter-cartridges-1263260727.webp?v=1792491534","url":"https:\/\/filtervilla.com\/products\/arsenic-removal-filter-cartridge","provider":"Filter Villa","version":"1.0","type":"link"}