{"product_id":"cation-resin-filter-cartridge","title":"Crystal Quest Cation Resin Water Softening Filter Cartridge","description":"\u003cp\u003eThe Crystal Quest Cation Resin Filter Cartridge softens water inside a standard filter housing, using sodium-form cation exchange resin to capture calcium and magnesium. No tank, brine or drain line is needed, and capacity ranges from 805 to 5,200 grains depending on size.\u003c\/p\u003e\n\n\u003ch3\u003eHighlights\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eIon exchange resin captures calcium and magnesium, the minerals that form scale\u003c\/li\u003e\n\u003cli\u003eDrop-in cartridge format for existing housings, with no tank, brine or drain line\u003c\/li\u003e\n\u003cli\u003eFour sizes fit 2.5\" x 10\", 2.5\" x 20\", 5\" x 10\" Big Blue and 5\" x 20\" Big Blue housings\u003c\/li\u003e\n\u003cli\u003eRated flow from 0.5 GPM to 6 GPM to match countertop, under-sink or whole house use\u003c\/li\u003e\n\u003cli\u003eAvailable as a single cartridge or in packs of 2 or 4\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eSpecs \u0026amp; Features\u003c\/h3\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eMedia\u003c\/td\u003e\n\u003ctd\u003eSodium-form cation exchange resin (cross-linked polystyrene beads, sulfonic acid exchange sites)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2-7\/8\" x 9-3\/4\" (CQE-RC-04009)\u003c\/td\u003e\n\u003ctd\u003eFits 2.5\" x 10\"; 0.5 GPM (1.9 lpm); 805 grains\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2-7\/8\" x 20\" (CQE-RC-04022)\u003c\/td\u003e\n\u003ctd\u003eFits 2.5\" x 20\"; 2.5 GPM (9.4 lpm); 2,080 grains\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e4-5\/8\" x 9-3\/4\" (CQE-RC-04076)\u003c\/td\u003e\n\u003ctd\u003eFits 5\" x 10\" Big Blue; 3 GPM (11.4 lpm); 2,080 grains\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e4-5\/8\" x 20\" (CQE-RC-04071)\u003c\/td\u003e\n\u003ctd\u003eFits 5\" x 20\" Big Blue; 6 GPM (22.7 lpm); 5,200 grains\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTemperature Rating\u003c\/td\u003e\n\u003ctd\u003e40°F–145°F (4.4°C–62.8°C)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eConstruction\u003c\/td\u003e\n\u003ctd\u003eRigid polystyrene shell, polystyrene end caps, polypropylene expansion pad, spun polypropylene post-filter, Buna-N top gasket, 1-micron end pads\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCapacity Basis\u003c\/td\u003e\n\u003ctd\u003eRated at less than 100 ppm hardness; estimate only\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cul\u003e\n\u003cli\u003eTo estimate gallons, divide the grain rating by your hardness in grains per gallon (17.1 ppm = 1 grain per gallon); for example, the 805-grain size treats about 80 gallons at 10 grains per gallon\u003c\/li\u003e\n\u003cli\u003eTreated water gains sodium, and the amount increases with water hardness\u003c\/li\u003e\n\u003cli\u003eNot designed to remove bacteria, viruses, chlorine, chemical tastes, lead or other heavy metals, fluoride, nitrate or arsenic; pair with a carbon or SMART stage for broader filtration\u003c\/li\u003e\n\u003cli\u003eUse only on microbiologically safe water\u003c\/li\u003e\n\u003cli\u003eDo not use tank-softener or other cartridge regeneration procedures on this cartridge\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eDetails\u003c\/h3\u003e\n\u003cp\u003eAvermont Direct is an authorized Crystal Quest dealer. The 2-7\/8\" x 9-3\/4\" size suits countertop and under-sink systems, while the 20\" and Big Blue sizes suit whole house cartridge systems on moderately hard water. Actual cartridge life depends on incoming hardness and how much water you use.\u003c\/p\u003e\n\n\u003ch3\u003eNeed Help?\u003c\/h3\u003e\n\u003cp\u003eFree shipping on orders over $200\u003c\/p\u003e\n\u003cp\u003eIf you have questions about this product before you order, our team is happy to help.\u003c\/p\u003e\n\u003cp\u003eEmail: \u003ca href=\"mailto:support@avermontdirect.com\" target=\"_blank\" rel=\"noopener\"\u003esupport@avermontdirect.com\u003c\/a\u003e\u003cbr\u003e\nPhone: \u003ca href=\"tel:+18444553695\" target=\"_blank\" rel=\"noopener\"\u003e+1 (844) 455-3695\u003c\/a\u003e\u003cbr\u003e\nHours: Monday–Friday, 9AM–5PM\u003cbr\u003e\nLive Chat: Available 24\/7\u003c\/p\u003e","brand":"Crystal Quest","offers":[{"title":"2-7\/8\" x 9-3\/4\" \/ Single","offer_id":50895776481328,"sku":"CQE-RC-04009","price":49.0,"currency_code":"USD","in_stock":true},{"title":"2-7\/8\" x 9-3\/4\" \/ Pack of 2","offer_id":50895776514096,"sku":"CQE-RC-04009-2PK","price":98.0,"currency_code":"USD","in_stock":true},{"title":"2-7\/8\" x 9-3\/4\" \/ Pack of 4","offer_id":50895776546864,"sku":"CQE-RC-04009-4PK","price":196.0,"currency_code":"USD","in_stock":true},{"title":"2-7\/8\" x 20\" \/ Single","offer_id":50895776579632,"sku":"CQE-RC-04022","price":61.0,"currency_code":"USD","in_stock":true},{"title":"2-7\/8\" x 20\" \/ Pack of 2","offer_id":50895776612400,"sku":"CQE-RC-04022-2PK","price":122.0,"currency_code":"USD","in_stock":true},{"title":"2-7\/8\" x 20\" \/ Pack of 4","offer_id":50895776645168,"sku":"CQE-RC-04022-4PK","price":244.0,"currency_code":"USD","in_stock":true},{"title":"4-5\/8” x 9-3\/4” \/ Single","offer_id":50895776677936,"sku":"CQE-RC-04076","price":69.0,"currency_code":"USD","in_stock":true},{"title":"4-5\/8” x 9-3\/4” \/ Pack of 2","offer_id":50895776710704,"sku":"CQE-RC-04076-2PK","price":138.0,"currency_code":"USD","in_stock":true},{"title":"4-5\/8” x 9-3\/4” \/ Pack of 4","offer_id":50895776743472,"sku":"CQE-RC-04076-4PK","price":276.0,"currency_code":"USD","in_stock":true},{"title":"4-5\/8” x 20” \/ Single","offer_id":50895776776240,"sku":"CQE-RC-04071","price":99.0,"currency_code":"USD","in_stock":true},{"title":"4-5\/8” x 20” \/ Pack of 2","offer_id":50895776809008,"sku":"CQE-RC-04071-2PK","price":198.0,"currency_code":"USD","in_stock":true},{"title":"4-5\/8” x 20” \/ Pack of 4","offer_id":50895776841776,"sku":"CQE-RC-04071-4PK","price":396.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0689\/4646\/0720\/files\/cation-resin-filter-cartridge-crystal-quest-water-filter-cartridges-1263260692.webp?v=1793071861","url":"https:\/\/avermontdirect.com\/products\/cation-resin-filter-cartridge","provider":"Avermont Direct","version":"1.0","type":"link"}