{"product_id":"4000-5000-gpd-whole-house-ro-filter-pack","title":"4000\/5000 GPD Whole House RO Filter Pack","description":"\u003ch3\u003eChoose your replacement pack\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003ePrefilter pack:\u003c\/strong\u003e the cartridge set only, without an RO membrane.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eComplete replacement pack, 4000 GPD: the 3 prefilters plus 2 x 4\" x 40\" RO membranes (CQE-RC-04086).\u003c\/li\u003e\n\u003cli\u003eComplete replacement pack, 5000 GPD: the 3 prefilters plus 3 x 4\" x 40\" RO membranes (CQE-RC-04086).\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eCheck the size printed on your current membrane before ordering.\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eComplete replacement packs are one-time purchases. Replace prefilters typically every 12 to 24 months, about 18 months for most homes; once a year on chlorinated city water. Replace RO membranes every 2 to 3 years. Actual life depends on feed water quality, system configuration and usage.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eA 4,000 or 5,000 GPD reverse osmosis system supplies a large home or a business, and it runs on two or three 4\" x 40\" membranes.\u003c\/strong\u003e Every gallon reaches them through three pre-filter stages. Keep those stages fresh and the membranes, pump and output stay where they should be.\u003c\/p\u003e\u003cp\u003eThe Prefilter pack holds the three pre-filter cartridges for a 4,000 or 5,000 GPD Crystal Quest whole house RO system: a pleated cellulose sediment cartridge, a SMART cartridge and a coconut-based carbon block cartridge, each 4-5\/8\" x 20\" for 5\" x 20\" Big Blue housings.\u003c\/p\u003e\u003ch3\u003eAt a glance\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eThe full pre-filter set:\u003c\/strong\u003e sediment (CQE-RC-04034), SMART (CQE-RC-04030) and carbon block (CQE-RC-04036)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBig Blue 20\" cartridges\u003c\/strong\u003e rated at 6 gpm for the SMART and carbon block stages at this size\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMembrane protection:\u003c\/strong\u003e particles down to 5 microns, plus chlorine and chloramine reduction ahead of the 4\" x 40\" elements\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTypical replacement 12 to 24 months,\u003c\/strong\u003e about 18 months for most homes, and once a year on chlorinated city water\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003ePrefilter pack: membranes not included\u003c\/strong\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eInside the pack\u003c\/h3\u003e\u003cp\u003eThe cartridges install in this order, inlet first. \u003cstrong\u003eSediment:\u003c\/strong\u003e pleated cellulose media on a polypropylene core, with vinyl plastisol end caps, rated at 5 microns; the pleats give it a large dirt-holding surface. \u003cstrong\u003eSMART:\u003c\/strong\u003e Crystal Quest's multi-media cartridge with coconut shell carbon, catalytic carbon, redox alloy, ion-exchange resin, ceramic and tourmaline media. \u003cstrong\u003eCarbon block:\u003c\/strong\u003e solid acid-washed coconut shell activated carbon, rated at 5 microns. These are the same part numbers Crystal Quest lists for these system sizes.\u003c\/p\u003e\u003ch3\u003eHow the stages work together\u003c\/h3\u003e\u003ch4\u003eLoad the dirt early\u003c\/h4\u003e\u003cp\u003eThe sediment stage takes the particle load, so the SMART and carbon media spend their capacity on chemistry instead of dirt, and the pump and membranes never see sand, silt or rust.\u003c\/p\u003e\u003ch4\u003eTwo kinds of carbon for two disinfectants\u003c\/h4\u003e\u003cp\u003eMany cities disinfect with chloramine rather than chlorine. The SMART stage's catalytic carbon targets chloramine, which standard carbon handles less effectively; its coconut carbon, redox alloy and ion-exchange media also work on organic chemicals and metals. The carbon block then gives the water a final, close-contact pass for any remaining chlorine, taste and odor.\u003c\/p\u003e\u003ch4\u003eWhy it matters to the membranes\u003c\/h4\u003e\u003cp\u003eThe thin-film composite membranes in these systems tolerate less than 1 ppm chlorine, and the damage chlorine does is permanent. At 4,000 or 5,000 GPD, two or three membranes are at stake, so one fresh set of pre-filters protects all of them at once.\u003c\/p\u003e\n\u003ch3\u003eWhat it reduces\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003ePrimary targets\u003c\/strong\u003e (the jobs that protect your RO membranes):\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eSediment and suspended particles down to 5 microns, such as sand, silt and rust\u003c\/li\u003e\n\u003cli\u003eChlorine and chloramine; the thin-film composite membranes tolerate less than 1 ppm chlorine, and the damage chlorine does is permanent\u003c\/li\u003e\n\u003cli\u003eChlorine taste and odor\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eAlso reduced\u003c\/strong\u003e by the SMART and carbon media: volatile organic compounds and other organic chemicals, and a range of metals. Performance depends on the contaminant, incoming water quality, flow and cartridge condition.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eNot designed to treat:\u003c\/strong\u003e dissolved salts and TDS, which the RO membranes remove, or hardness above 15 gpg and iron or manganese above 0.05 ppm, which need their own pretreatment ahead of a 4,000 to 7,000 GPD system.\u003c\/p\u003e\u003ch3\u003eWhy Crystal Quest\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eThe exact three parts\u003c\/strong\u003e our replacement tables list for 4,000 and 5,000 GPD, in the right order.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOur own SMART blend\u003c\/strong\u003e for chloramine as well as chlorine.\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\u003e4,000 GPD \u003ca href=\"https:\/\/crystalquest.com\/products\/whole-house-reverse-osmosis-system\"\u003eWhole House Reverse Osmosis System\u003c\/a\u003e:\u003c\/strong\u003e two \u003ca href=\"https:\/\/crystalquest.com\/products\/4-x-40-ro-membrane\"\u003e4\" x 40\" membranes\u003c\/a\u003e, sold separately.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e5,000 GPD Whole House Reverse Osmosis System:\u003c\/strong\u003e three 4\" x 40\" membranes, sold separately.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e\u003ca href=\"https:\/\/crystalquest.com\/products\/reverse-osmosis-system-mid-flow\"\u003eCommercial Mid-Flow RO System\u003c\/a\u003e, 4,000 and 5,000 GPD:\u003c\/strong\u003e lists the same three part numbers.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNot the 7,000 GPD:\u003c\/strong\u003e that size has a fourth pre-filter housing; order from its own replacement list.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eRO filter cartridges are not returnable under our \u003ca href=\"https:\/\/crystalquest.com\/policies\/refund-policy\"\u003erefund policy\u003c\/a\u003e, so compare part numbers with your current cartridges or call us first.\u003c\/p\u003e\u003ch3\u003eCommon questions\u003c\/h3\u003e\u003cdiv class=\"cq-product-faq\"\u003e\n\u003cdetails\u003e\u003csummary\u003e\u003cstrong\u003eWhat is in the pack?\u003c\/strong\u003e\u003c\/summary\u003e\u003cp\u003eOne pleated cellulose sediment cartridge (CQE-RC-04034), one SMART cartridge (CQE-RC-04030) and one coconut-based carbon block cartridge (CQE-RC-04036), each 4-5\/8\" x 20\".\u003c\/p\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003e\u003cstrong\u003eDoes the pack include the RO membrane?\u003c\/strong\u003e\u003c\/summary\u003e\u003cp\u003eNo. The membrane is sold separately from the Prefilter pack. The 4,000 GPD Whole House Reverse Osmosis System lists two 4\" x 40\" membranes and the 5,000 GPD size lists three.\u003c\/p\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003e\u003cstrong\u003eIn what order do the cartridges go?\u003c\/strong\u003e\u003c\/summary\u003e\u003cp\u003eInlet first: sediment, then SMART, then carbon block.\u003c\/p\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003e\u003cstrong\u003eHow often should I replace the pack?\u003c\/strong\u003e\u003c\/summary\u003e\u003cp\u003eTypically every 12 to 24 months, about 18 months for most homes, and once a year on chlorinated city water as best practice. Replace sooner if taste, odor, flow or pressure changes. Actual life depends on feed water quality, system configuration and usage.\u003c\/p\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003e\u003cstrong\u003eWill it work on my 7,000 GPD system?\u003c\/strong\u003e\u003c\/summary\u003e\u003cp\u003eNot as a complete set. The 7,000 GPD system has four pre-filter housings. Order from its own replacement list, or call us to confirm.\u003c\/p\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003e\u003cstrong\u003eMy city uses chloramine. Is that covered?\u003c\/strong\u003e\u003c\/summary\u003e\u003cp\u003eYes. The SMART stage's catalytic carbon targets chloramine, and the carbon block polishes what remains before the membranes.\u003c\/p\u003e\u003c\/details\u003e\n\u003c\/div\u003e\n###\n\u003ch3\u003ePack contents\u003c\/h3\u003e\u003ctable width=\"100%\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd valign=\"middle\"\u003e\u003cstrong\u003eCARTRIDGE\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd valign=\"middle\"\u003e\u003cstrong\u003eACTUAL SIZE\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd valign=\"middle\"\u003e\u003cstrong\u003eSKU\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd valign=\"middle\"\u003ePleated cellulose sediment cartridge\u003c\/td\u003e\n\u003ctd valign=\"middle\"\u003e4-5\/8\" x 20\"\u003c\/td\u003e\n\u003ctd valign=\"middle\"\u003eCQE-RC-04034\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd valign=\"middle\"\u003eSMART cartridge\u003c\/td\u003e\n\u003ctd valign=\"middle\"\u003e4-5\/8\" x 20\"\u003c\/td\u003e\n\u003ctd valign=\"middle\"\u003eCQE-RC-04030\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd valign=\"middle\"\u003eCoconut-based carbon block cartridge\u003c\/td\u003e\n\u003ctd valign=\"middle\"\u003e4-5\/8\" x 20\"\u003c\/td\u003e\n\u003ctd valign=\"middle\"\u003eCQE-RC-04036\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003cp\u003e\u003cstrong\u003eStage details\u003c\/strong\u003e\u003c\/p\u003e\n\u003ctable width=\"100%\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eStage\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003eMedia\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003eRating\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e1. Sediment\u003c\/td\u003e\n\u003ctd\u003ePleated cellulose on a polypropylene core; vinyl plastisol end caps\u003c\/td\u003e\n\u003ctd\u003e5 micron\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2. SMART\u003c\/td\u003e\n\u003ctd\u003eCoconut shell carbon, catalytic carbon, redox alloy, ion-exchange resin, ceramic and tourmaline media\u003c\/td\u003e\n\u003ctd\u003e6 gpm at this size\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e3. Carbon block\u003c\/td\u003e\n\u003ctd\u003eAcid-washed coconut shell activated carbon, solid block\u003c\/td\u003e\n\u003ctd\u003e5 micron; 6 gpm at this size\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003cp\u003eThe pack's GPD label names the whole house RO systems it serves (4000 and 5000 GPD). It does not include an RO membrane. Service life is an estimate: actual life depends on feed water quality, system configuration and usage.\u003c\/p\u003e\n","brand":"Crystal Quest Water Filters","offers":[{"title":"Prefilter pack","offer_id":67806744576088,"sku":"CQ-RC-0004P","price":330.0,"currency_code":"USD","in_stock":true},{"title":"Complete replacement pack, 4000 GPD","offer_id":67806744608856,"sku":"CQ-RC-0004P-C4000","price":902.7,"currency_code":"USD","in_stock":true},{"title":"Complete replacement pack, 5000 GPD","offer_id":67806744641624,"sku":"CQ-RC-0004P-C5000","price":1189.05,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0862\/1250\/9784\/files\/4000-5000-gpd-whole-house-ro-filter-pack-crystal-quest-water-filter-cartridges-1263463676.webp?v=1792488644","url":"https:\/\/filtervilla.com\/products\/4000-5000-gpd-whole-house-ro-filter-pack","provider":"Filter Villa","version":"1.0","type":"link"}