{"product_id":"aluminum-oxide-fluoride-reduction-filter-cartridge","title":"Aluminum Oxide Fluoride Reduction Filter Cartridge","description":"\u003cp\u003e\u003cstrong\u003eYour city adds fluoride to the water, and you would rather choose how much of it your family drinks.\u003c\/strong\u003e A standard carbon filter will not do that. Fluoride is a small, dissolved ion, and it takes a media built for fluoride to pull it out of the water.\u003c\/p\u003e\u003cp\u003eThe Crystal Quest Aluminum Oxide Fluoride Reduction Filter Cartridge is that media in a drop-in cartridge. It is packed with granules of synthetic crystalline aluminum oxide, the fluoride media water treatment professionals call activated alumina. It is the mineral alternative to bone char: no animal-derived material, no salt and no regeneration, just a media bed that holds on to fluoride as your water passes through.\u003c\/p\u003e\u003ch3\u003eAt a glance\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eTargets inorganic fluoride in municipal water,\u003c\/strong\u003e with arsenic and lead also reduced\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWorks by adsorption and chemical reaction,\u003c\/strong\u003e not ion exchange, so it needs no salt and no regeneration\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMineral media, not bone char:\u003c\/strong\u003e synthetic aluminum oxide granules processed to keep fines to a minimum\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\u003eChemistry disclosed:\u003c\/strong\u003e the pH and flow conditions that give the media its best performance are explained below\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eWhat you are looking at\u003c\/h3\u003e\u003cp\u003eEach cartridge is a column of tough, uniform aluminum oxide granules held in polyolefin inner and outer wraps and polyethylene netting, closed with polypropylene end caps and sealed with Buna-N gaskets. The granules are similar in size to ion exchange resin beads. They barely swell or shrink in water and keep pressure loss low, so the cartridge holds its shape and its flow through its service life. Each end cap has 1-micron pads behind its openings.\u003c\/p\u003e\u003ch3\u003eHow an aluminum oxide fluoride filter works\u003c\/h3\u003e\u003ch4\u003eFluoride sticks to the surface\u003c\/h4\u003e\u003cp\u003eAluminum oxide granules are full of internal surface, and that surface carries reactive sites with a strong attraction to fluoride. As water moves through the bed, fluoride ions are drawn onto those sites and bound there by a combination of adsorption and chemical reaction with the media. Because the removal does not depend on ion exchange, the cartridge does not need to be recharged with salt. When the sites are used up, the cartridge is spent and you replace it.\u003c\/p\u003e\u003ch4\u003eWhy pH matters\u003c\/h4\u003e\u003cp\u003eAluminum oxide does its best fluoride work in slightly acidic water, around pH 5.5. The media is stable from pH 4 to 10, but as pH rises, its surface becomes less attractive to fluoride and capacity falls. Most city water is near neutral or slightly alkaline, which is why fluoride media life varies so much from one home to the next.\u003c\/p\u003e\u003ch4\u003eWhy flow matters\u003c\/h4\u003e\u003cp\u003eFluoride removal on aluminum oxide is a contact-time reaction. Slower water gives each fluoride ion more time to find a site, and higher flow costs capacity. That is why every size carries its own rated flow, and why sizing up gives the media more time to work at the same tap flow.\u003c\/p\u003e\u003ch4\u003eKeep chlorine low\u003c\/h4\u003e\u003cp\u003eThe media is rated for free chlorine up to 1 ppm. On chlorinated city water, use it in a system that also has a carbon or SMART stage.\u003c\/p\u003e\n\u003ch3\u003eWhat it reduces\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003ePrimary target:\u003c\/strong\u003e fluoride, specifically inorganic fluoride in municipal water. This is the fluoride form that city treatment adds and the form this media is built to capture.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eAlso reduced\u003c\/strong\u003e (named on Crystal Quest's product records; there is no separate capacity rating for these):\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eArsenic, which aluminum oxide also adsorbs\u003c\/li\u003e\n\u003cli\u003eLead\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eNot designed to treat:\u003c\/strong\u003e bacteria and viruses, nitrate, hardness, or chlorine and chemical tastes as a dedicated stage. Use it only on microbiologically safe water.\u003c\/p\u003e\u003ch3\u003eIs it right for my water?\u003c\/h3\u003e\u003cp\u003eIt is built for inorganic fluoride in municipal water. If your fluoride is organic or comes from a well or another natural source, talk to a Crystal Quest specialist before you choose a fluoride media.\u003c\/p\u003e\u003cp\u003eCrystal Quest offers two fluoride media. \u003ca href=\"https:\/\/crystalquest.com\/products\/calcium-gac-fluoride-reduction-filter-cartridge\"\u003eCalcium GAC\u003c\/a\u003e is bone char and is our standard fluoride cartridge. Aluminum oxide is the choice when you want a mineral media with no animal-derived material. The two cartridges are interchangeable, so either fits the same position. If you want fluoride reduction and broad chemical filtration in one cartridge, the \u003ca href=\"https:\/\/crystalquest.com\/products\/smart-aluminum-oxide-fluoride-reduction-filter-cartridge\"\u003eSMART + Aluminum Oxide Fluoride Reduction Filter Cartridge\u003c\/a\u003e combines both.\u003c\/p\u003e\u003ch3\u003eWhy Crystal Quest\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eThe chemistry, explained.\u003c\/strong\u003e You know what the media is, how it captures fluoride and which conditions help or hurt it.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eA full fluoride lineup.\u003c\/strong\u003e Bone char, aluminum oxide and SMART combinations, so the media can match your water and your preferences.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFull construction disclosure,\u003c\/strong\u003e from media to wraps to gaskets, in the Specifications tab.\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, as the fluoride stage alongside carbon or SMART stages.\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-04006), 2-7\/8\" x 20\" (CQE-RC-04019), 4-5\/8\" x 9-3\/4\" (CQE-RC-04065) or 4-5\/8\" x 20\" (CQE-RC-04068).\u003c\/p\u003e\u003ch3\u003eCommon questions\u003c\/h3\u003e\u003cdiv class=\"cq-product-faq\"\u003e\n\u003cdetails\u003e\u003csummary\u003e\u003cstrong\u003eIs aluminum oxide the same as activated alumina?\u003c\/strong\u003e\u003c\/summary\u003e\u003cp\u003eYes. Activated alumina is the water treatment name for porous aluminum oxide granules like the media in this cartridge. It captures fluoride on its surface by adsorption and chemical reaction.\u003c\/p\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003e\u003cstrong\u003eIs this the same as the Calcium GAC fluoride cartridge?\u003c\/strong\u003e\u003c\/summary\u003e\u003cp\u003eNo. Calcium GAC is bone char, Crystal Quest's standard fluoride media. This cartridge uses aluminum oxide, a mineral media with no animal-derived material. The two are interchangeable, so you can choose by preference.\u003c\/p\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003e\u003cstrong\u003eCan I use it for well water fluoride?\u003c\/strong\u003e\u003c\/summary\u003e\u003cp\u003eIt is built for inorganic fluoride in municipal water. For fluoride from a well or another natural source, speak with a Crystal Quest specialist before choosing a media.\u003c\/p\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003e\u003cstrong\u003eDoes my water's pH affect fluoride removal?\u003c\/strong\u003e\u003c\/summary\u003e\u003cp\u003eYes. Aluminum oxide captures the most fluoride in slightly acidic water, around pH 5.5, and its capacity drops as pH rises. Slower flow helps too, because the reaction needs contact time.\u003c\/p\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003e\u003cstrong\u003eHow often should I replace an aluminum oxide fluoride cartridge?\u003c\/strong\u003e\u003c\/summary\u003e\u003cp\u003eIt depends on your fluoride level, pH, flow and water use, so there is no fixed calendar interval. Test the treated water and replace the cartridge when fluoride starts to rise.\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 rate.\u003c\/p\u003e\u003c\/details\u003e\n\u003c\/div\u003e\n###\n\u003ch3\u003eAluminum oxide fluoride filter cartridge specifications\u003c\/h3\u003e\u003cp\u003ePublished ratings apply to the selected cartridge and listed conditions. Media life depends on incoming fluoride, pH, flow and usage.\u003c\/p\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\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\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd valign=\"middle\"\u003eCQE-RC-04006\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\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd valign=\"middle\"\u003eCQE-RC-04019\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\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd valign=\"middle\"\u003eCQE-RC-04065\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\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd valign=\"middle\"\u003eCQE-RC-04068\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\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\/eagle-fluoride-resin\"\u003eAluminum Oxide Fluoride\u003c\/a\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTreatment method\u003c\/td\u003e\n\u003ctd\u003eAdsorption and chemical reaction; not ion exchange\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTargets\u003c\/td\u003e\n\u003ctd\u003eInorganic fluoride in municipal water; arsenic and lead also reduced\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMedia pH range\u003c\/td\u003e\n\u003ctd\u003e4 to 10; best fluoride capacity in slightly acidic water (about pH 5.5)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMedia free chlorine limit\u003c\/td\u003e\n\u003ctd\u003e1 ppm\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\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 valign=\"top\"\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 valign=\"top\"\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","brand":"Crystal Quest Water Filters","offers":[{"title":"2-7\/8\" x 9-3\/4\" \/ Single","offer_id":67807312609368,"sku":"CQE-RC-04006","price":69.0,"currency_code":"USD","in_stock":true},{"title":"2-7\/8\" x 9-3\/4\" \/ Pack of 2","offer_id":67807312642136,"sku":"CQE-RC-04006-2PK","price":138.0,"currency_code":"USD","in_stock":true},{"title":"2-7\/8\" x 9-3\/4\" \/ Pack of 4","offer_id":67807312674904,"sku":"CQE-RC-04006-4PK","price":276.0,"currency_code":"USD","in_stock":true},{"title":"2-7\/8\" x 20\" \/ Single","offer_id":67807312707672,"sku":"CQE-RC-04019","price":168.0,"currency_code":"USD","in_stock":true},{"title":"2-7\/8\" x 20\" \/ Pack of 2","offer_id":67807312740440,"sku":"CQE-RC-04019-2PK","price":336.0,"currency_code":"USD","in_stock":true},{"title":"2-7\/8\" x 20\" \/ Pack of 4","offer_id":67807312773208,"sku":"CQE-RC-04019-4PK","price":672.0,"currency_code":"USD","in_stock":true},{"title":"4-5\/8” x 9-3\/4” \/ Single","offer_id":67807312805976,"sku":"CQE-RC-04065","price":176.0,"currency_code":"USD","in_stock":true},{"title":"4-5\/8” x 9-3\/4” \/ Pack of 2","offer_id":67807312838744,"sku":"CQE-RC-04065-2PK","price":352.0,"currency_code":"USD","in_stock":true},{"title":"4-5\/8” x 9-3\/4” \/ Pack of 4","offer_id":67807312871512,"sku":"CQE-RC-04065-4PK","price":704.0,"currency_code":"USD","in_stock":true},{"title":"4-5\/8” x 20” \/ Single","offer_id":67807312904280,"sku":"CQE-RC-04068","price":239.0,"currency_code":"USD","in_stock":true},{"title":"4-5\/8” x 20” \/ Pack of 2","offer_id":67807312937048,"sku":"CQE-RC-04068-2PK","price":478.0,"currency_code":"USD","in_stock":true},{"title":"4-5\/8” x 20” \/ Pack of 4","offer_id":67807312969816,"sku":"CQE-RC-04068-4PK","price":956.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0862\/1250\/9784\/files\/aluminum-oxide-fluoride-reduction-filter-cartridge-crystal-quest-water-filter-cartridges-1263260748.webp?v=1792491536","url":"https:\/\/filtervilla.com\/products\/aluminum-oxide-fluoride-reduction-filter-cartridge","provider":"Filter Villa","version":"1.0","type":"link"}