{"title":"Replacements","description":null,"products":[{"product_id":"pleated-cellulose-sediment-cartridge","title":"Crystal Quest 5 Micron Pleated Sediment Filter Cartridge","description":"\u003cp\u003e\u003cstrong\u003eThis 5 micron pleated sediment filter cartridge is built for the problems you notice first: sand settling in the toilet tank, grit catching in the faucet aerator, or a SMART or carbon stage that clogs up far too early.\u003c\/strong\u003e Rust, silt and dirt make water look murky, but the bigger issue is what they do further along, where they pile up inside the more expensive filters. Stopping them before they get there is the whole purpose of a sediment stage.\u003c\/p\u003e\n\u003cp\u003eCrystal Quest builds this cartridge from pleated cellulose, folded into a large filtering surface over a polypropylene core. In its own equipment, Crystal Quest places it first in the triple cartridge systems and relies on it to pre-filter sediment for its whole house and whole house RO systems, so the membrane, carbon and SMART filters that follow stay protected. You can choose from four sizes, covering countertop, under-sink, whole house and Big Blue housings.\u003c\/p\u003e\n\n\u003ch2\u003eKey features of this pleated sediment filter\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e5 micron rating:\u003c\/strong\u003e holds back sand, silt, rust and similar particles floating in the water.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMore room for dirt:\u003c\/strong\u003e the folds multiply the filtering surface, so it can collect more before you see the flow go down.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eA guard for later stages:\u003c\/strong\u003e sediment never reaches the SMART, carbon block or RO membrane filters behind it.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSolid build:\u003c\/strong\u003e a polypropylene core, with vinyl plastisol caps bonded to both ends of the media.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAvailable in four sizes\u003c\/strong\u003e, with a usual service life of 12 to 24 months.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eHow the cartridge is built\u003c\/h2\u003e\n\u003cp\u003eLook closely and you see deep folds, evenly spaced around the whole cartridge. The cellulose sits on a stiff polypropylene core, polyethylene mesh holds every fold in its place, and vinyl plastisol closes off both ends, leaving water no route except straight through the media.\u003c\/p\u003e\n\u003cp\u003eOver time the white folds turn brown or grey with what they have trapped. It is a clear sign of how much dirt never made it into your plumbing.\u003c\/p\u003e\n\n\u003ch2\u003eHow pleated sediment filtration works\u003c\/h2\u003e\n\u003ch3\u003eFiltration by particle size\u003c\/h3\u003e\n\u003cp\u003eSediment filtration is purely physical. While water flows through the cellulose, anything larger than 5 microns gets stuck. No chemicals are released and nothing is added; the cartridge just stops particles that are too big to fit through.\u003c\/p\u003e\n\u003ch3\u003eWhy pleats outperform a flat wrap\u003c\/h3\u003e\n\u003cp\u003eBecause the media is folded, a cartridge of the same dimensions offers far more filtering area. Water then moves through any single spot more gently, pressure loss stays small and the trapped dirt is spread out instead of concentrated. In practice that means steady flow and many months of use before the cartridge is full.\u003c\/p\u003e\n\u003ch3\u003eDirt you can see\u003c\/h3\u003e\n\u003cp\u003eMost particles collect on the outside of the folds, where you can check them by eye. One look tells you how heavily your water loads the filter, so you know whether to swap cartridges sooner when your supply is especially dirty.\u003c\/p\u003e\n\u003ch3\u003eWhy a pre-filter is worth it\u003c\/h3\u003e\n\u003cp\u003eThe media in carbon and SMART cartridges, and the membrane in an RO system, exist to change what is dissolved in your water, not to catch mud. Any grain the sediment cartridge stops is one that can't plug or cover those stages. Changing the sediment filter on time lets the rest of the system reach its expected lifespan.\u003c\/p\u003e\n\n\u003ch2\u003eWhat this sediment cartridge removes, and what it doesn't\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eIt takes out:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eSand, silt, dirt and rust particles (sediment)\u003c\/li\u003e\n\u003cli\u003eSuspended particles as small as 5 microns\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eIt does not treat dissolved substances.\u003c\/strong\u003e Fluoride, hardness, chlorine, VOCs, nitrate, pesticides and dissolved metals such as lead and iron go straight through, as do viruses and bacteria. Those jobs belong to the stages after it: reverse osmosis, specialty cartridges, the SMART Filter Cartridge and the \u003ca href=\"\/products\/coconut-based-5-micron-carbon-block-filter-cartridge\"\u003eCoconut Based 5-Micron Carbon Block Filter Cartridge\u003c\/a\u003e.\u003c\/p\u003e\n\n\u003ch2\u003eAbout Crystal Quest\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpecified in Crystal Quest's own systems.\u003c\/strong\u003e Their own system manuals name this pleated cartridge as the default sediment stage.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNo bypass around the media.\u003c\/strong\u003e The vinyl plastisol caps are fused to the cellulose, which keeps water from leaking past the folds.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eServing customers since 1994.\u003c\/strong\u003e More than 1,000,000 people have used Crystal Quest filtration. The company follows ISO 9001 quality management and has produced its water filters in the USA for more than three decades.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eWhere it fits\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eTriple cartridge systems:\u003c\/strong\u003e stage one, ahead of SMART Plus and the carbon block\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWhole house RO pre-filtration:\u003c\/strong\u003e housing one, ahead of SMART Plus\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWhole house cartridge systems:\u003c\/strong\u003e fitted as the pre-filter for sediment\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWhich size goes where:\u003c\/strong\u003e 2-7\/8\" x 9-3\/4\" (CQE-RC-04001) in countertop and under-sink systems; 2-7\/8\" x 20\" (CQE-RC-04015) in whole house cartridge housings; 4-5\/8\" x 9-3\/4\" (CQE-RC-04033) and 4-5\/8\" x 20\" (CQE-RC-04034) in the larger compact, whole house and whole house RO housings\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eCommon questions\u003c\/h2\u003e\n\u003cdetails\u003e\u003csummary\u003eWhat is this cartridge made of?\u003c\/summary\u003e\u003cp\u003eFolded cellulose media on a polypropylene core for rigidity, with vinyl plastisol sealing off each end. It is rated at 5 microns.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eWhat makes a pleated sediment filter a good choice?\u003c\/summary\u003e\u003cp\u003eFolding the media creates a lot of filtering area. That gives it room to collect plenty of dirt while flow stays strong, even at 5 microns.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003ePleated vs. spun polypropylene: which works differently?\u003c\/summary\u003e\u003cp\u003eWith pleats, most dirt lands on one wide, folded surface. A spun polypropylene cartridge catches dirt inside a thick wound layer of fibre instead. For their sediment stage, Crystal Quest systems use the pleated cellulose version as standard.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eWill it take out dissolved contaminants?\u003c\/summary\u003e\u003cp\u003eNo. It only catches particles that float in the water. Nitrate, pesticides and dissolved metals call for a specialty, SMART or carbon cartridge.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eWhen should a sediment filter be replaced?\u003c\/summary\u003e\u003cp\u003ePlan on every 12 to 24 months; most homes land around 18 months. Swap it earlier if you notice a change in taste, odor, flow or pressure. The real lifespan depends on the quality of your incoming water, how your system is set up and how much you use.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eHow do I pick the right size for my housing?\u003c\/summary\u003e\u003cp\u003eMeasure the diameter and length of the cartridge you are replacing: 2-7\/8\" x 9-3\/4\", 2-7\/8\" x 20\", 4-5\/8\" x 9-3\/4\" or 4-5\/8\" x 20\". They fit, in that order, 2.5\" x 10\", 2.5\" x 20\", 5\" x 10\" Big Blue and 5\" x 20\" Big Blue housings.\u003c\/p\u003e\u003c\/details\u003e\n","brand":"Crystal Quest®","offers":[{"title":"2-7\/8” x 9-3\/4” \/ Single","offer_id":60202633101696,"sku":"CQE-RC-04001","price":22.95,"currency_code":"USD","in_stock":true},{"title":"2-7\/8” x 9-3\/4” \/ Pack of 2","offer_id":60202633134464,"sku":"CQE-RC-04001-2PK","price":45.9,"currency_code":"USD","in_stock":true},{"title":"2-7\/8” x 9-3\/4” \/ Pack of 4","offer_id":60202633167232,"sku":"CQE-RC-04001-4PK","price":91.8,"currency_code":"USD","in_stock":true},{"title":"2-7\/8” x 20” \/ Single","offer_id":60202633200000,"sku":"CQE-RC-04015","price":31.5,"currency_code":"USD","in_stock":true},{"title":"2-7\/8” x 20” \/ Pack of 2","offer_id":60202633232768,"sku":"CQE-RC-04015-2PK","price":63.0,"currency_code":"USD","in_stock":true},{"title":"2-7\/8” x 20” \/ Pack of 4","offer_id":60202633265536,"sku":"CQE-RC-04015-4PK","price":126.0,"currency_code":"USD","in_stock":true},{"title":"4-5\/8\" x 9-3\/4\" \/ Single","offer_id":60202633298304,"sku":"CQE-RC-04033","price":34.5,"currency_code":"USD","in_stock":true},{"title":"4-5\/8\" x 9-3\/4\" \/ Pack of 2","offer_id":60202633331072,"sku":"CQE-RC-04033-2PK","price":69.0,"currency_code":"USD","in_stock":true},{"title":"4-5\/8\" x 9-3\/4\" \/ Pack of 4","offer_id":60202633363840,"sku":"CQE-RC-04033-4PK","price":138.0,"currency_code":"USD","in_stock":true},{"title":"4-5\/8\" x 20\" \/ Single","offer_id":60202633396608,"sku":"CQE-RC-04034","price":44.5,"currency_code":"USD","in_stock":true},{"title":"4-5\/8\" x 20\" \/ Pack of 2","offer_id":60202633429376,"sku":"CQE-RC-04034-2PK","price":89.0,"currency_code":"USD","in_stock":true},{"title":"4-5\/8\" x 20\" \/ Pack of 4","offer_id":60202633462144,"sku":"CQE-RC-04034-4PK","price":178.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1004\/5564\/5568\/files\/2-7-8-x-9-3-4-pleated-cellulose-sediment-cartridge-crystal-quest-water-filter-cartridges-1263260594.webp?v=1792864288"},{"product_id":"coconut-based-5-micron-carbon-block-filter-cartridge","title":"Crystal Quest 5 Micron Coconut Carbon Block Filter Cartridge","description":"\u003cp\u003e\u003cstrong\u003eA coconut carbon block filter cartridge is the proven way to deal with chlorine in city water: the smell of a swimming pool in your glass, coffee that tastes slightly wrong, a chemical scent in the shower.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eCrystal Quest makes this replacement as one solid piece of acid-washed coconut shell activated carbon with a 5 micron rating. It lowers chlorine taste and odor, volatile organic compounds (VOCs) and fine dirt, so whatever your setup, be it whole house, RO, under-sink or countertop, the water tastes fresh once more. Four sizes are available for standard 2.5 x 10, 2.5 x 20, 5 x 10 and 5 x 20 inch housings, Crystal Quest equipment included.\u003c\/p\u003e\n\n\u003ch2\u003eCoconut carbon block cartridge highlights\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eFresher-tasting water:\u003c\/strong\u003e less chlorine taste and odor and fewer VOCs, the two targets named on each label.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOne stage doing double duty:\u003c\/strong\u003e it adsorbs chemicals and strains out particles as small as 5 microns.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAcid-washed coconut shell carbon\u003c\/strong\u003e, pressed solid yet with little pressure loss, so you keep good flow.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFlow from 0.5 to 6 GPM\u003c\/strong\u003e depending on size, covering whole house, RO, under-sink and countertop use.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLong-lasting:\u003c\/strong\u003e plan on 12 to 24 months, with roughly 18 months as the norm in most homes.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eWhat the cartridge looks like\u003c\/h2\u003e\n\u003cp\u003eThe photos match what arrives at your door. You see a dark carbon core wrapped in a polyolefin casing and polypropylene netting. Polypropylene caps close both ends, and on top a Buna-N gasket presses against the housing cap to seal it.\u003c\/p\u003e\n\u003cp\u003eThe label lists the part numbers, the allowed pressure range and how to replace the cartridge, so changing it next time takes little thought.\u003c\/p\u003e\n\n\u003ch2\u003eHow a carbon block water filter works\u003c\/h2\u003e\n\u003ch3\u003eAdsorption across a vast inner surface\u003c\/h3\u003e\n\u003cp\u003eTo activate carbon, it is exposed to steam at very high heat until countless microscopic pores open up inside it. Those pores add up to an enormous surface. Many organic chemicals, plus the substances responsible for chlorine taste and odor, stick to it as water passes, a process known as adsorption.\u003c\/p\u003e\n\u003ch3\u003eWhy acid-washed coconut shell\u003c\/h3\u003e\n\u003cp\u003eFor this block Crystal Quest chose carbon from coconut shells and adds an acid wash, a further treatment that boosts the carbon's ability to remove contaminants. The outcome is dense, clean carbon made with drinking water in mind.\u003c\/p\u003e\n\u003ch3\u003eWhy a solid block beats loose granules\u003c\/h3\u003e\n\u003cp\u003eGranular activated carbon (GAC) can adsorb, but particles slip between the granules. Compressing the carbon into a single block adds a straining effect, trapping anything above 5 microns while it adsorbs. So one housing gives you both carbon treatment and the removal of fine sediment.\u003c\/p\u003e\n\u003ch3\u003eContact time makes the difference\u003c\/h3\u003e\n\u003cp\u003eWater that spends more time in the carbon gives it more chance to adsorb. That is why the rated flow differs per size: 0.5 GPM for the 2-7\/8\" x 9-3\/4\" model, up to 6 GPM for the 4-5\/8\" x 20\" model. Only a modest amount of carbon is needed for taste and odor compounds, which largely explains why the water keeps tasting fresh for months.\u003c\/p\u003e\n\n\u003ch2\u003eWhat this carbon block filter reduces\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eMain targets, listed on the label:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eChlorine taste and odor\u003c\/li\u003e\n\u003cli\u003eVolatile organic compounds (VOCs)\u003c\/li\u003e\n\u003cli\u003eDirt and particles down to 5 microns\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eLowered by activated carbon as well, when present\u003c\/strong\u003e (this is what the media can do in general, not an individually tested rating of this cartridge):\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eCertain pesticides and herbicides, atrazine for example\u003c\/li\u003e\n\u003cli\u003eSome disinfection byproducts, trihalomethanes (THMs) for example\u003c\/li\u003e\n\u003cli\u003eFurther organic compounds that spoil taste and smell\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eChloramine:\u003c\/strong\u003e activated carbon can lower it, but catalytic carbon does that job better than an ordinary block. If your utility disinfects with chloramine, add a SMART Filter Cartridge: catalytic carbon is part of its media blend.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eBeyond what it treats:\u003c\/strong\u003e microorganisms such as bacteria and viruses, hardness, fluoride, nitrate, total dissolved solids, and lead or other heavy metals. Crystal Quest handles each of these with a dedicated stage, such as its Lead Filter Cartridge, SMART cartridges or reverse osmosis.\u003c\/p\u003e\n\n\u003ch2\u003eWhy choose Crystal Quest\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBuilt into Crystal Quest's own equipment.\u003c\/strong\u003e The same block is used in its double and triple cartridge systems, in Thunder under-sink RO systems and in whole house RO pre-filtration, so you replace like with like.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eReal measurements, not nominal ones.\u003c\/strong\u003e Every size is stated as the cartridge's true diameter and length.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOver 1,000,000 customers since 1994.\u003c\/strong\u003e Production takes place in the USA under ISO 9001 quality management, as it has for over 30 years.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eSystems it fits\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eDouble cartridge systems:\u003c\/strong\u003e first position, with SMART after it\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTriple cartridge systems:\u003c\/strong\u003e third position, behind sediment and SMART\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpecialty triple systems:\u003c\/strong\u003e first position, with SMART and the specialty cartridge after it\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThunder under-sink RO:\u003c\/strong\u003e the third pre-filter behind UF and SMART, shielding the membrane\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWhole house RO with three pre-filter housings:\u003c\/strong\u003e behind sediment and SMART\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMetal Removal triple cartridge systems:\u003c\/strong\u003e third position, behind the iron cartridge and SMART\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eOrder the size listed on the cartridge you use now, or check a previous order: 2-7\/8\" x 9-3\/4\" (CQE-RC-04000), 2-7\/8\" x 20\" (CQE-RC-04014), 4-5\/8\" x 9-3\/4\" (CQE-RC-04035) or 4-5\/8\" x 20\" (CQE-RC-04036).\u003c\/p\u003e\n\n\u003ch2\u003eCommon questions\u003c\/h2\u003e\n\u003cdetails\u003e\u003csummary\u003eCarbon block or GAC cartridge: what is the difference?\u003c\/summary\u003e\u003cp\u003eThe block is solid carbon with a 5 micron rating, which means it filters out fine particles too. Crystal Quest's GAC cartridge instead holds loose granules of catalytic carbon and coconut shell carbon combined with ERA 6500 redox media. Always use the type specified for your system.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eCan a carbon block filter take out chlorine and chloramine?\u003c\/summary\u003e\u003cp\u003eReducing chlorine taste and odor is the main thing it does. Chloramine is reduced too, though not as well as with catalytic carbon, so where city water contains chloramine, use a SMART cartridge alongside it.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eWill it take out fluoride, lead or hardness?\u003c\/summary\u003e\u003cp\u003eIt won't. Fluoride, nitrate and hardness minerals pass through activated carbon, and an ordinary carbon block is not intended to remove heavy metals. For those problems Crystal Quest sells separate fluoride, lead and softening products.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eHow do I know which carbon block size my housing takes?\u003c\/summary\u003e\u003cp\u003eMeasure your current cartridge's true diameter and length: 2-7\/8\" x 9-3\/4\", 2-7\/8\" x 20\", 4-5\/8\" x 9-3\/4\" or 4-5\/8\" x 20\". In that order they fit 2.5\" x 10\", 2.5\" x 20\", 5\" x 10\" Big Blue and 5\" x 20\" Big Blue housings, with flow rates between 0.5 and 6 GPM.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eHow frequently does a carbon block filter need replacing?\u003c\/summary\u003e\u003cp\u003eMost households replace it after 12 to 24 months, often around 18. A change in taste, smell, flow or pressure means it is time sooner. Real lifespan depends on your source water, your system layout and your water use.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eWhy does the water look gray after a cartridge change?\u003c\/summary\u003e\u003cp\u003eNew carbon can shed fine dust at the start. Following the label, let the tap run 5 to 10 minutes before drinking and the water turns clear.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eWhich position does the carbon block take in a system with several cartridges?\u003c\/summary\u003e\u003cp\u003eCrystal Quest double systems put it first, before SMART. Triple systems use it last, once sediment and SMART have done their work.\u003c\/p\u003e\u003c\/details\u003e\n","brand":"Crystal Quest®","offers":[{"title":"2-7\/8” x 9-3\/4” \/ Single","offer_id":60202638967168,"sku":"CQE-RC-04000","price":22.95,"currency_code":"USD","in_stock":true},{"title":"2-7\/8” x 9-3\/4” \/ Pack of 2","offer_id":60202638999936,"sku":"CQE-RC-04000-2PK","price":45.9,"currency_code":"USD","in_stock":true},{"title":"2-7\/8” x 9-3\/4” \/ Pack of 4","offer_id":60202639032704,"sku":"CQE-RC-04000-4PK","price":91.8,"currency_code":"USD","in_stock":true},{"title":"2-7\/8” x 20” \/ Single","offer_id":60202639065472,"sku":"CQE-RC-04014","price":31.5,"currency_code":"USD","in_stock":true},{"title":"2-7\/8” x 20” \/ Pack of 2","offer_id":60202639098240,"sku":"CQE-RC-04014-2PK","price":63.0,"currency_code":"USD","in_stock":true},{"title":"2-7\/8” x 20” \/ Pack of 4","offer_id":60202639131008,"sku":"CQE-RC-04014-4PK","price":126.0,"currency_code":"USD","in_stock":true},{"title":"4-5\/8\" x 9-3\/4\" \/ Single","offer_id":60202639163776,"sku":"CQE-RC-04035","price":39.5,"currency_code":"USD","in_stock":true},{"title":"4-5\/8\" x 9-3\/4\" \/ Pack of 2","offer_id":60202639196544,"sku":"CQE-RC-04035-2PK","price":79.0,"currency_code":"USD","in_stock":true},{"title":"4-5\/8\" x 9-3\/4\" \/ Pack of 4","offer_id":60202639229312,"sku":"CQE-RC-04035-4PK","price":158.0,"currency_code":"USD","in_stock":true},{"title":"4-5\/8\" x 20\" \/ Single","offer_id":60202639262080,"sku":"CQE-RC-04036","price":49.5,"currency_code":"USD","in_stock":true},{"title":"4-5\/8\" x 20\" \/ Pack of 2","offer_id":60202639294848,"sku":"CQE-RC-04036-2PK","price":99.0,"currency_code":"USD","in_stock":true},{"title":"4-5\/8\" x 20\" \/ Pack of 4","offer_id":60202639327616,"sku":"CQE-RC-04036-4PK","price":198.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1004\/5564\/5568\/files\/2-7-8-x-9-3-4-coconut-based-5-micron-carbon-block-filter-cartridge-crystal-quest-water-filter-cartridges-1263260679.webp?v=1792864329"},{"product_id":"2-5-x-14-freshwater-reverse-osmosis-membrane","title":"Crystal Quest 2.5\" x 14\" Freshwater RO Membrane, 2514 TFC Element","description":"\u003cp\u003e\u003cstrong\u003eThis 2.5\" x 14\" RO membrane is the element inside an RO system that does the real separating: it holds back the dissolved salts and minerals while purified water passes through.\u003c\/strong\u003e When your RO water begins to taste salty or flat, the TDS reading keeps creeping upward, or output falls even though the pre-filters are new, a worn membrane is the usual cause.\u003c\/p\u003e\n\u003cp\u003eCrystal Quest lists this Freshwater Reverse Osmosis Membrane (part number CQE-RC-04111, size 2514) as the replacement for its 300 GPD \u003ca href=\"\/products\/whole-house-reverse-osmosis-system\"\u003eWhole House Reverse Osmosis System\u003c\/a\u003e as well as its 200 GPD Low-Flow Reverse Osmosis System. Since 2514 is an industry-standard size, the element also suits other RO units designed for a 2.5 by 14 inch membrane. The element uses TFC (thin-film composite) construction and is meant for municipal or well supplies that were pre-filtered and dechlorinated first.\u003c\/p\u003e\n\n\u003ch2\u003eKey features of this 2514 RO membrane\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMade for your system:\u003c\/strong\u003e a 300 GPD Whole House RO takes one, and a 200 GPD Low-Flow RO uses one as well.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRejection stated with its conditions:\u003c\/strong\u003e 99% nominal salt rejection, 96% minimum, measured at 550 ppm feed, 150 psi, 77°F (25°C) and 15% recovery.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFreshwater class:\u003c\/strong\u003e intended for well and tap water below 2,000 ppm TDS.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eYears of service:\u003c\/strong\u003e expect 2 to 3 years, although feed water quality, system setup and household demand decide how long it actually lasts.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eHow the element is built\u003c\/h2\u003e\n\u003cp\u003eThe element is a spiral-wound cylinder. Sheets of TFC membrane are wrapped about a perforated tube at the center, and a mesh spacer between the sheets keeps a channel open for the feed water. The purified water (permeate) travels inward in a spiral and leaves via the center tube, while everything that is rejected exits at the opposite end as concentrate.\u003c\/p\u003e\n\u003cp\u003eAt one end, a brine seal closes the gap between element and housing wall, so the feed water has to go through the membrane rather than past it. The element is packed in preservative solution, and both ends of the permeate tube are capped with protectors.\u003c\/p\u003e\n\u003cp\u003eThe 14\" length only fits housings made for that length. It cannot be swapped with 2.5\" x 21\" or 2.5\" x 40\" elements.\u003c\/p\u003e\n\n\u003ch2\u003eHow RO membranes separate salts from water\u003c\/h2\u003e\n\u003ch3\u003ePressure turns osmosis around\u003c\/h3\u003e\n\u003cp\u003eLeft alone, water crosses a semipermeable membrane toward whichever side holds more salt. A reverse osmosis system applies more force than that natural osmotic pull, which pushes the water molecules across the membrane and leaves the dissolved ions on the feed side. Crystal Quest specifies 150 psi operating pressure for the elements in its whole house RO systems.\u003c\/p\u003e\n\u003ch3\u003eCross-flow keeps the surface clear\u003c\/h3\u003e\n\u003cp\u003eWhatever the element rejects is not stored inside it. Feed water flows along the membrane surface, and the concentrate takes the rejected minerals away to the drain, which is how a single element can last for years.\u003c\/p\u003e\n\u003cp\u003eThe same principle explains the drain water: each RO system from Crystal Quest sends roughly 1 gallon to drain for each 1 to 3 gallons of purified water. The exact ratio varies with your water and settings.\u003c\/p\u003e\n\u003ch3\u003eUnderstanding the figures\u003c\/h3\u003e\n\u003cp\u003eTo calculate rejection, subtract the product TDS from the feed TDS and divide the result by the feed TDS. Elements are rated one at a time at 15% recovery, so different elements can be compared fairly.\u003c\/p\u003e\n\u003cp\u003eProduction drops when the water is colder or carries more TDS. RO water also measures 1 to 2 pH points lower than the feed water, because dissolved carbon dioxide gets through while the buffering minerals are held back.\u003c\/p\u003e\n\n\u003ch2\u003eWhat this RO membrane reduces, and what it doesn't\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eMain target:\u003c\/strong\u003e total dissolved solids, meaning the sodium, chloride, sulfate, calcium and magnesium ions that cause salty or mineral flavors and spotting. The whole house RO systems from Crystal Quest carry a rating of 98.5% nominal and 96% minimum salt rejection.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eAlso stopped:\u003c\/strong\u003e any particles that make it to the membrane, microplastics included, are much bigger than what can pass through it. Most of them are caught earlier by the pre-filters.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eNot built for:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eFree chlorine, which damages the TFC layer (0.1 ppm maximum)\u003c\/li\u003e\n\u003cli\u003eSediment, which is the pre-filters' job\u003c\/li\u003e\n\u003cli\u003eIron or manganese above 0.05 ppm, or hardness above what your system allows; these coat and scale the membrane surface\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eTreat these before the water reaches the membrane, or choose a \u003ca href=\"\/products\/whole-house-reverse-osmosis-system\"\u003eWhole House Reverse Osmosis System\u003c\/a\u003e that is sized to your water test.\u003c\/p\u003e\n\n\u003ch2\u003eAbout Crystal Quest\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eTaken from Crystal Quest's own replacement tables,\u003c\/strong\u003e so it matches their systems without any cross-referencing.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFigures you can verify:\u003c\/strong\u003e the rejection rate is published along with the test conditions, and the Specifications tab lists all operating limits.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIn business since 1994,\u003c\/strong\u003e with more than 1,000,000 people served. Crystal Quest works to ISO 9001 quality management and has been building water filters in America for more than three decades.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eWhere it fits\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e300 GPD Whole House Reverse Osmosis System:\u003c\/strong\u003e takes one element.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e200 GPD Low-Flow Reverse Osmosis System:\u003c\/strong\u003e takes one element.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDifferent element needed:\u003c\/strong\u003e the 400 GPD Whole House RO takes the 2.5\" x 21\" Freshwater Reverse Osmosis Membrane instead.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eBefore you order, compare the part number on the element you are replacing. RO cartridges and membranes can't be sent back, which is why you should get in touch if you are not sure which part you need.\u003c\/p\u003e\n\n\u003ch2\u003eThe standard 2514 format\u003c\/h2\u003e\n\u003cp\u003eThis low-energy freshwater element uses the common 2514 (2.5\" x 14\") size found in 2.5\" membrane housings designed for 14\" elements, Crystal Quest systems among them. Crystal Quest operates the elements in its whole house systems at 150 psi, far less than brackish and seawater elements are designed for, so on well and tap water the pump has an easier job.\u003c\/p\u003e\n\u003cp\u003eSharing the 2514 name is encouraging, but it does not prove fit. On a system from another brand, compare the position of the brine seal, the ends of the permeate tube and the flow direction against the element you have now, or ask us before you order.\u003c\/p\u003e\n\n\u003ch2\u003eStoring and handling the element\u003c\/h2\u003e\n\u003cp\u003eEvery element is shipped sealed in a bag with preservative solution. Leave it sealed until installation, keep it indoors away from direct sun, and do not allow it to freeze.\u003c\/p\u003e\n\u003cp\u003eOnce in use and wet, the element must never dry out. If the system will be out of use for a season, protect the elements against bacterial growth with Membrane Preservative.\u003c\/p\u003e\n\n\u003ch2\u003eCommon questions\u003c\/h2\u003e\n\u003cdetails\u003e\u003csummary\u003eWhich systems take the 2.5\" x 14\" element?\u003c\/summary\u003e\u003cp\u003eOne goes in the 300 GPD Whole House Reverse Osmosis System, plus one in the 200 GPD Low-Flow Reverse Osmosis System.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eCan I use the 2.5\" x 21\" element instead?\u003c\/summary\u003e\u003cp\u003eNo. The longer 2.5\" x 21\" element is for the 400 GPD Whole House RO System. Always order the length listed for your system.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eHow often does a 2514 RO membrane need replacing?\u003c\/summary\u003e\u003cp\u003eCount on every 2 to 3 years. How long it lasts comes down to your feed water, the system setup and your daily demand. Measure the TDS of your feed water and RO water, so you replace the element once its performance falls instead of guessing.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eHow much salt rejection can I expect?\u003c\/summary\u003e\u003cp\u003eThe rating is 99% nominal salt rejection with a 96% minimum, at 550 ppm feed, 150 psi, 77°F and 15% recovery. What you measure yourself depends on the TDS, temperature and pressure of your water.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eDoes a new element need flushing?\u003c\/summary\u003e\u003cp\u003eYes. Because new elements are shipped in preservative solution, flush for 1 hour or longer and throw away all permeate and concentrate produced while flushing.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eIs it OK to feed chlorinated city water into the membrane?\u003c\/summary\u003e\u003cp\u003eNo, because the thin-film membrane can take 0.1 ppm free chlorine at most, so the SMART and carbon block pre-filters have to take the chlorine out first. Replace them on schedule to keep the element safe.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eDoes it work on brackish or sea water?\u003c\/summary\u003e\u003cp\u003eNo, it is designed for fresh water only. Crystal Quest sells brackish and seawater desalination elements separately; ask which element class suits your feed water.\u003c\/p\u003e\u003c\/details\u003e\n","brand":"Crystal Quest®","offers":[{"title":"Single","offer_id":60218609041792,"sku":"CQE-RC-04111","price":153.75,"currency_code":"USD","in_stock":true},{"title":"Pack of 2","offer_id":60218609074560,"sku":"CQE-RC-04111-2PK","price":307.5,"currency_code":"USD","in_stock":true},{"title":"Pack of 4","offer_id":60218609107328,"sku":"CQE-RC-04111-4PK","price":615.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1004\/5564\/5568\/files\/2-5-x-14-freshwater-reverse-osmosis-membrane-crystal-quest-water-filter-cartridges-1263586084.webp?v=1792950905"},{"product_id":"200-400-gpd-whole-house-ro-filter-pack","title":"Crystal Quest Whole House RO Filter Pack for 200-400 GPD Systems","description":"\u003cp\u003e\u003cstrong\u003eThis whole house RO filter pack replaces all pre-filter stages of Crystal Quest's 200, 300 and 400 GPD whole house reverse osmosis systems in one order.\u003c\/strong\u003e The membrane may get the praise for clean water, yet it's the pre-filters that determine how long it survives: sediment scratches and blocks it, and chlorine eats away at it. Changing the pre-filters when they're due is the cheapest way to look after a whole house RO.\u003c\/p\u003e\n\n\u003ch2\u003ePick your whole house RO filter pack\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePrefilter pack:\u003c\/strong\u003e just the three cartridges, no membrane included.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eComplete replacement pack, 200 or 300 GPD:\u003c\/strong\u003e the three prefilters together with one 2.5\" x 14\" RO membrane (CQE-RC-04111).\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eComplete replacement pack, 400 GPD:\u003c\/strong\u003e the three prefilters together with one 2.5\" x 21\" RO membrane (CQE-RC-04084).\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eLook at the size printed on the membrane you have now before you order, because older 300 GPD systems can use another membrane size.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eEvery Complete replacement pack is a one-off purchase, not a subscription. Prefilters usually last 12 to 24 months, around 18 months in most homes, or one year where the supply is chlorinated. RO membranes last 2 to 3 years. How long they actually last depends on your water, the system's configuration and your usage.\u003c\/p\u003e\n\n\u003ch2\u003eKey features\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eThree cartridges, swapped together:\u003c\/strong\u003e sediment (CQE-RC-04015), SMART (CQE-RC-04016) and carbon block (CQE-RC-04014), so every stage starts over fresh at the same time.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGuards the membrane:\u003c\/strong\u003e traps particles as small as 5 microns and cuts chlorine and chloramine before the water gets to the RO element.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSlim 2-7\/8\" x 20\" cartridges\u003c\/strong\u003e made for 2.5\" x 20\" housings.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUsual replacement every 12 to 24 months,\u003c\/strong\u003e roughly 18 months for most households, and once a year if your city chlorinates.\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003ePrefilter pack comes without a membrane.\u003c\/strong\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eWhat's inside the pack\u003c\/h2\u003e\n\u003cp\u003eYou get three cartridges, listed in install order starting at the inlet:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e\u003ca href=\"\/products\/pleated-cellulose-sediment-cartridge\"\u003ePleated sediment cartridge\u003c\/a\u003e:\u003c\/strong\u003e cellulose media around a polypropylene core, closed with vinyl plastisol caps.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSMART cartridge:\u003c\/strong\u003e one cartridge filled with coconut shell carbon, catalytic carbon, redox alloy, ion-exchange resin, ceramic and tourmaline media.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e\u003ca href=\"\/products\/coconut-based-5-micron-carbon-block-filter-cartridge\"\u003eCarbon block\u003c\/a\u003e:\u003c\/strong\u003e a solid 5-micron block made from acid-washed coconut shell activated carbon.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eEvery cartridge matches the part number that Crystal Quest's replacement tables give; none is a generic copy.\u003c\/p\u003e\n\n\u003ch2\u003eHow three pre-filter stages protect an RO membrane\u003c\/h2\u003e\n\u003ch3\u003eStage 1: sediment\u003c\/h3\u003e\n\u003cp\u003eBecause the cellulose is pleated, it offers a big filtering surface that can hold plenty of dirt while still filtering to 5 microns. It removes rust, sand and silt that would block the feed channels of the membrane and burden the next stages.\u003c\/p\u003e\n\u003ch3\u003eStage 2: SMART\u003c\/h3\u003e\n\u003cp\u003eHere several media each do their own task at the same time. Catalytic carbon goes after chloramine, which ordinary carbon handles less well. Coconut shell carbon adsorbs organic chemicals and chlorine, while metals are handled by the ion-exchange and redox alloy media.\u003c\/p\u003e\n\u003ch3\u003eStage 3: carbon block\u003c\/h3\u003e\n\u003cp\u003eThe densely bonded coconut carbon block keeps water in contact with the carbon for a long time. It strips out leftover chlorine, compounds that cause taste and odor, plus fine particles to 5 microns, as the final barrier in front of the membrane.\u003c\/p\u003e\n\u003ch3\u003eWhy removing chlorine is so important\u003c\/h3\u003e\n\u003cp\u003eThe TFC membranes used in Crystal Quest's whole house RO systems tolerate less than 1 ppm chlorine. Any chlorine that gets past worn-out pre-filters gradually harms the surface of the membrane, and that harm is permanent.\u003c\/p\u003e\n\u003cp\u003eReplacing the pre-filters on schedule is how you keep both the membrane and the whole system around it protected.\u003c\/p\u003e\n\n\u003ch2\u003eWhat the pack reduces\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eMain targets\u003c\/strong\u003e, the work that keeps your RO membrane safe:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eSediment and suspended particles to 5 microns, like rust, silt and sand\u003c\/li\u003e\n\u003cli\u003eChlorine and chloramine; if chlorine gets to the TFC membrane it causes damage that cannot be undone\u003c\/li\u003e\n\u003cli\u003eChlorine taste and odor\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eReduced as well\u003c\/strong\u003e by the carbon and SMART media: VOCs plus other organic chemicals, as well as various metals. Results vary with the contaminant, the quality of the incoming water, the flow and the state of the cartridge.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eNot meant for:\u003c\/strong\u003e hardness, salts or total dissolved solids. Those are handled by the RO membrane, which isn't part of the Prefilter pack.\u003c\/p\u003e\n\n\u003ch2\u003eAbout Crystal Quest\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMatched parts:\u003c\/strong\u003e exactly the three part numbers in Crystal Quest's replacement tables, in the correct sizes.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCrystal Quest's own SMART blend,\u003c\/strong\u003e designed to tackle both chlorine and chloramine.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIn business since 1994,\u003c\/strong\u003e with more than 1,000,000 people served. Crystal Quest follows ISO 9001 quality management and has manufactured in the USA for three decades and more.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eWhere it fits\u003c\/h2\u003e\n\u003cp\u003eSystems of 200, 300 and 400 GPD are covered by this pack range. Crystal Quest specifies these three part numbers for both the 300 and 400 GPD \u003ca href=\"\/products\/whole-house-reverse-osmosis-system\"\u003eWhole House Reverse Osmosis System\u003c\/a\u003e and also the 200 and 300 GPD Low-Flow Reverse Osmosis System.\u003c\/p\u003e\n\u003cp\u003eNot sure? Compare the part numbers on the cartridges you have now. RO cartridges can't be returned, so contact us beforehand and we can confirm it fits.\u003c\/p\u003e\n\n\u003ch2\u003eCommon questions\u003c\/h2\u003e\n\u003cdetails\u003e\u003csummary\u003eWhat do I get in the pack?\u003c\/summary\u003e\u003cp\u003eThree 2-7\/8\" x 20\" cartridges: a pleated cellulose sediment cartridge (CQE-RC-04015), a SMART cartridge (CQE-RC-04016) and a coconut-based carbon block cartridge (CQE-RC-04014).\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eIs the RO membrane part of the Prefilter pack?\u003c\/summary\u003e\u003cp\u003eNo, the Prefilter pack has no membrane; you buy it on its own. The 300 GPD Whole House Reverse Osmosis System uses one 2.5\" x 14\" membrane. The Complete replacement packs do include a membrane.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eIn what sequence are the cartridges installed?\u003c\/summary\u003e\u003cp\u003eStarting at the inlet: sediment first, SMART second and the carbon block last.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eHow often is a new pack needed?\u003c\/summary\u003e\u003cp\u003eUsually every 12 to 24 months, around 18 months for most households, and yearly as good practice when your municipal water contains chlorine. Change it earlier when flow, pressure, taste or odor changes. Actual service life varies with your feed water, the system's setup and household demand.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eWill it take out chloramine?\u003c\/summary\u003e\u003cp\u003eYes. That is one of the main tasks of the SMART stage, where catalytic carbon goes after chloramine. Afterwards the carbon block removes what is left before the water gets to the membrane.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eCan I use it in the 400 GPD Whole House RO?\u003c\/summary\u003e\u003cp\u003eIt does fit: the 400 GPD Whole House RO calls for these same three cartridges. That system takes a different membrane, the 2.5\" x 21\".\u003c\/p\u003e\u003c\/details\u003e\n","brand":"Crystal Quest®","offers":[{"title":"Prefilter pack","offer_id":60218609140096,"sku":"CQ-RC-0002P","price":211.0,"currency_code":"USD","in_stock":true},{"title":"Complete replacement pack, 200 or 300 GPD","offer_id":60218609172864,"sku":"CQ-RC-0002P-C300","price":364.75,"currency_code":"USD","in_stock":true},{"title":"Complete replacement pack, 400 GPD","offer_id":60218609205632,"sku":"CQ-RC-0002P-C400","price":373.25,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1004\/5564\/5568\/files\/200-300-gpd-whole-house-ro-filter-pack-crystal-quest-water-filter-cartridges-1263463678.webp?v=1792950905"},{"product_id":"smart-filter-cartridge","title":"Crystal Quest SMART Multi-Media Water Filter Cartridge","description":"\u003cp\u003e\u003cstrong\u003eCrystal Quest's SMART filter replacement cartridge is the brand's flagship multi-media cartridge, treating water in several ways during one pass instead of giving each media a single task.\u003c\/strong\u003e City water relies on chlorine to stay safe in the mains, but no one enjoys its flavor, its smell or the byproducts it leaves. Throw in metals and trace chemicals picked up from aging plumbing and treated supplies, and a basic carbon cartridge quickly runs out of answers.\u003c\/p\u003e\n\u003cp\u003eOne SMART shell contains coconut shell carbon, catalytic carbon, two Eagle Redox Alloys from Crystal Quest, ion-exchange resin, as well as ceramic and tourmaline media.\u003c\/p\u003e\n\n\u003ch2\u003eKey features of the SMART filter cartridge\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eFour sizes:\u003c\/strong\u003e choose by the dimensions or part number printed on your system or the label of your current cartridge.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThree capacity levels:\u003c\/strong\u003e Plus, Ultra and Ultimate each use a different proportion of ERA media to make the cartridge last longer.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSeveral media working together:\u003c\/strong\u003e coconut shell carbon, catalytic carbon, redox alloy and ion-exchange resin, combined with ceramic and tourmaline media.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUsual replacement:\u003c\/strong\u003e every 12 to 24 months; most homes land near 18 months. Your water and your usage set the real interval.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eChlorine reduction tested by an independent lab:\u003c\/strong\u003e read the full \u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/1004\/5564\/5568\/files\/Smart_CT_Chlorine_Test_CQE-CT-00103_2020_2295-20618_Chlorine_Pass.pdf?v=1792951409\" target=\"_blank\" rel=\"noopener\"\u003etest report from IAPMO R\u0026amp;T\u003c\/a\u003e.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eInside the cartridge\u003c\/h2\u003e\n\u003cp\u003eThe SMART cartridge is fully sealed. Its end caps are polypropylene, the inner and outer wraps are polyolefin, the netting is polyethylene and the gaskets are Buna-N. The media are layered on top of each other, with a little blending at each boundary.\u003c\/p\u003e\n\u003cp\u003eAt the base, a single 1-micron pad supports the media and captures fine particles. A front label shows the part number, size and SMART level, so reordering the correct cartridge takes seconds.\u003c\/p\u003e\n\n\u003ch2\u003eHow multi-media filtration works\u003c\/h2\u003e\n\u003ch3\u003eAdsorption by coconut shell carbon\u003c\/h3\u003e\n\u003cp\u003eActivated carbon contains countless microscopic pores; the acid-washed coconut shell carbon Crystal Quest uses has around 1,050 m² of internal surface in each gram. Organic compounds such as pesticides, many VOCs and the substances behind chemical flavors and odors, attach to that surface as the water moves through. On top of that, carbon converts free chlorine into harmless chloride.\u003c\/p\u003e\n\u003ch3\u003eCatalytic carbon: handling chloramine\u003c\/h3\u003e\n\u003cp\u003eA growing number of utilities use chloramine, a longer-lasting mix of ammonia and chlorine that standard carbon only breaks down slowly. Catalytic carbon starts as coconut carbon but has a more reactive surface, which makes it far better at tackling chloramine.\u003c\/p\u003e\n\u003cp\u003eBecause Crystal Quest mixes regular and catalytic carbon in all of its carbon blends, you don't need to find out which disinfectant your water utility adds.\u003c\/p\u003e\n\u003ch3\u003eERA 6500 and ERA 9500: redox\u003c\/h3\u003e\n\u003cp\u003eEagle Redox Alloy is a copper-zinc media that Crystal Quest makes itself. Water flowing across the granules sets off an exchange of electrons between the alloy and dissolved contaminants, known as oxidation and reduction. ERA 6500 is meant for chlorine reduction; ERA 9500 is meant for hydrogen sulfide and ferrous iron.\u003c\/p\u003e\n\u003cp\u003eSome dissolved metals are also changed by these reactions into a form that stays bound to the media. The amount of ERA in a blend is what mainly distinguishes Plus, Ultra and Ultimate, and Crystal Quest adjusts that amount per level to lengthen cartridge life.\u003c\/p\u003e\n\u003ch3\u003eIon-exchange resin: metals\u003c\/h3\u003e\n\u003cp\u003eA small dose of potable-grade resin exchanges dissolved metal ions for harmless ones, giving the cartridge a metals stage that pure carbon lacks.\u003c\/p\u003e\n\u003ch3\u003eCeramic and tourmaline media\u003c\/h3\u003e\n\u003cp\u003eCeramic and tourmaline beads assist in conditioning the water and help keep the pH balanced and a little on the alkaline side.\u003c\/p\u003e\n\u003ch3\u003eFilter pad\u003c\/h3\u003e\n\u003cp\u003eThe 1-micron base pad keeps the media from shifting and filters particles within the cartridge. Crystal Quest does not claim an overall micron rating for the cartridge.\u003c\/p\u003e\n\n\u003ch2\u003eWhat the SMART cartridge reduces, and what it can't treat\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eMain targets:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eChlorine and chloramine, including the chemical taste and smell\u003c\/li\u003e\n\u003cli\u003eLead, mercury and other heavy metals, at lower concentrations\u003c\/li\u003e\n\u003cli\u003eVOCs, THMs and other disinfection byproducts\u003c\/li\u003e\n\u003cli\u003ePesticides and herbicides\u003c\/li\u003e\n\u003cli\u003ePharmaceutical residues and other organic chemicals\u003c\/li\u003e\n\u003cli\u003eFine particles, caught by the 1-micron base pad\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eReduced too:\u003c\/strong\u003e hydrogen sulfide (rotten-egg odor) and ferrous iron via ERA 9500, at the modest levels a single cartridge stage is designed for. How well it performs depends on the specific contaminant, your incoming water, flow rate and how worn the cartridge is. If you're dealing with a particular water issue, choose treatment based on a water test.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eOutside its scope:\u003c\/strong\u003e hardness, total dissolved solids (TDS), fluoride, nitrate, arsenic, and bacteria or viruses. These need their own stage, or one of the SMART combination cartridges: SMART + Calcium GAC Fluoride, SMART + Aluminum Oxide Fluoride, Nitrate Removal + SMART, Arsenic Removal + SMART, or Alkalize\/Ionizer, Mineralizer \u0026amp; Oxidation + SMART.\u003c\/p\u003e\n\n\u003ch2\u003eSMART Plus, Ultra or Ultimate?\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eThe levels differ in their proportion of ERA (Eagle Redox Alloy) media, and therefore in how many gallons they can treat.\u003c\/strong\u003e Within one size, Plus is the most affordable to buy, Ultra treats more water, and Ultimate gives you the greatest capacity and the longest life. Exactly when a cartridge is due still comes down to your water and your consumption.\u003c\/p\u003e\n\u003cp\u003eRated flow is identical for Plus, Ultra and Ultimate in the same size.\u003c\/p\u003e\n\n\u003ch2\u003eCapacity by size\u003c\/h2\u003e\n\u003cdiv class=\"aq-table-wrap\"\u003e\u003ctable class=\"aq-table\"\u003e\n  \u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eSize (diameter x height)\u003c\/th\u003e\n\u003cth\u003eFlow\u003c\/th\u003e\n\u003cth\u003ePlus (gal)\u003c\/th\u003e\n\u003cth\u003eUltra (gal)\u003c\/th\u003e\n\u003cth\u003eUltimate (gal)\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n  \u003ctbody\u003e\n    \u003ctr\u003e\n\u003ctd\u003e2-7\/8\" x 9-3\/4\"\u003c\/td\u003e\n\u003ctd\u003e0.5 GPM\u003c\/td\u003e\n\u003ctd\u003e10,000\u003c\/td\u003e\n\u003ctd\u003e20,000\u003c\/td\u003e\n\u003ctd\u003e30,000\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e2-7\/8\" x 20\"\u003c\/td\u003e\n\u003ctd\u003e2.5 GPM\u003c\/td\u003e\n\u003ctd\u003e80,000\u003c\/td\u003e\n\u003ctd\u003e90,000\u003c\/td\u003e\n\u003ctd\u003e100,000\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e4-5\/8\" x 9-3\/4\"\u003c\/td\u003e\n\u003ctd\u003e3 GPM\u003c\/td\u003e\n\u003ctd\u003e80,000\u003c\/td\u003e\n\u003ctd\u003e90,000\u003c\/td\u003e\n\u003ctd\u003e100,000\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e4-5\/8\" x 20\"\u003c\/td\u003e\n\u003ctd\u003e6 GPM\u003c\/td\u003e\n\u003ctd\u003e160,000\u003c\/td\u003e\n\u003ctd\u003e240,000\u003c\/td\u003e\n\u003ctd\u003e300,000\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003c\/tbody\u003e\n\u003c\/table\u003e\u003c\/div\u003e\n\u003cp class=\"aq-note\"\u003eThese gallon figures are estimates for water under 100 ppm hardness; real capacity shifts with what is in your water and with your water use. They do not promise a set number of months, nor equal reduction for every contaminant.\u003c\/p\u003e\n\n\u003ch2\u003eAbout Crystal Quest\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eProprietary media.\u003c\/strong\u003e ERA 6500 and ERA 9500 are developed by Crystal Quest, each documented in a dedicated data sheet; SMART, in turn, is the core blend in the brand's whole house, under-sink and countertop systems.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOne cartridge, many contaminant types.\u003c\/strong\u003e Each media (carbon, catalytic carbon, redox alloy, resin) covers its own category, so a single housing does what would otherwise take several single-media stages.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCapacity published for all twelve combinations\u003c\/strong\u003e of size and level, each with the conditions it was rated under.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTrusted since 1994\u003c\/strong\u003e by over 1,000,000 people. Crystal Quest is ISO 9001 quality managed and has more than three decades of American manufacturing behind it.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eWhere the SMART cartridge fits\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSingle-cartridge systems:\u003c\/strong\u003e SMART does all the work.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTwo-stage systems:\u003c\/strong\u003e carbon block, then SMART.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThree-stage systems:\u003c\/strong\u003e sediment first, SMART in the middle, carbon block last.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpecialty systems:\u003c\/strong\u003e SMART goes before the fluoride, nitrate, arsenic or other specialty stage; in a three-stage specialty setup the carbon block leads, followed by SMART and finally the specialty cartridge.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAhead of an RO membrane:\u003c\/strong\u003e in the whole house and under-sink RO systems from Crystal Quest, SMART keeps chlorine away from the membrane.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eFinding the right replacement\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eStart by checking the label on your system, or on the cartridge you're swapping out.\u003c\/strong\u003e Match it by part number or size, and check in your system manual which SMART stage it uses.\u003c\/p\u003e\n\u003cp\u003eDimensions are stated as width across by height, in inches: a 2-7\/8\" x 9-3\/4\" cartridge is 2 7\/8 inches wide and 9 3\/4 inches tall. Larger cartridges only fit larger housings, and sealed inline filters are a separate format.\u003c\/p\u003e\n\n\u003ch2\u003eCommon questions\u003c\/h2\u003e\n\u003cdetails\u003e\u003csummary\u003eCan SMART replace my softener or RO?\u003c\/summary\u003e\u003cp\u003eNo. It is a multistage filter cartridge. Hard water, high TDS, fluoride or microbiological contamination each need their own dedicated treatment, whether that is a softener, an RO system, a specialty cartridge or a disinfection system.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eCan I switch to a higher SMART level?\u003c\/summary\u003e\u003cp\u003eYes, if you keep to your current cartridge size and check which SMART replacement your system calls for. A higher level adds capacity within that size; it doesn't raise the published flow or let it fit another housing size.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eWhat arrives when I order?\u003c\/summary\u003e\u003cp\u003eA single replacement SMART cartridge, in whichever level and size you picked. Sump, cap, housing and installation tools are sold separately. Cartridge color can change, so always order using the part number and size.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eHow do I install it?\u003c\/summary\u003e\u003cp\u003eUse your system's own instructions; they cover where the cartridge sits, caring for the seals, and flushing.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eWhat test results are available?\u003c\/summary\u003e\u003cp\u003eYou can read the full report of the \u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/1004\/5564\/5568\/files\/Smart_CT_Chlorine_Test_CQE-CT-00103_2020_2295-20618_Chlorine_Pass.pdf?v=1792951409\" target=\"_blank\" rel=\"noopener\"\u003echlorine reduction test\u003c\/a\u003e for countertop model CQE-CT-00103, which was tested at 0.2 GPM through 500 gallons. Its findings hold for the tested samples and conditions only, and do not confirm the capacities or every contaminant claim for all SMART sizes and levels.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eWill SMART deal with chloramine?\u003c\/summary\u003e\u003cp\u003eIt is designed to, yes. Alongside standard coconut carbon, SMART contains catalytic carbon, which breaks down chloramine more effectively than regular carbon, so it suits both chlorinated and chloraminated city water.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eWhat does ERA stand for?\u003c\/summary\u003e\u003cp\u003eERA means Eagle Redox Alloy, a copper and zinc redox media developed by Crystal Quest. ERA 6500 is aimed at chlorine and ERA 9500 at hydrogen sulfide and ferrous iron. The ERA share is what sets Plus, Ultra and Ultimate apart.\u003c\/p\u003e\u003c\/details\u003e\n","brand":"Crystal Quest®","offers":[{"title":"2-7\/8\" x 9-3\/4\" \/ SMART Plus \/ Single","offer_id":60218609369472,"sku":"CQE-RC-04002","price":59.0,"currency_code":"USD","in_stock":true},{"title":"2-7\/8\" x 9-3\/4\" \/ SMART Plus \/ Pack of 2","offer_id":60218609402240,"sku":"CQE-RC-04002-2PK","price":118.0,"currency_code":"USD","in_stock":true},{"title":"2-7\/8\" x 9-3\/4\" \/ SMART Plus \/ Pack of 4","offer_id":60218609435008,"sku":"CQE-RC-04002-4PK","price":236.0,"currency_code":"USD","in_stock":true},{"title":"2-7\/8\" x 9-3\/4\" \/ SMART Ultra \/ Single","offer_id":60218609467776,"sku":"CQE-RC-04003","price":79.0,"currency_code":"USD","in_stock":true},{"title":"2-7\/8\" x 9-3\/4\" \/ SMART Ultra \/ Pack of 2","offer_id":60218609500544,"sku":"CQE-RC-04003-2PK","price":158.0,"currency_code":"USD","in_stock":true},{"title":"2-7\/8\" x 9-3\/4\" \/ SMART Ultra \/ Pack of 4","offer_id":60218609533312,"sku":"CQE-RC-04003-4PK","price":316.0,"currency_code":"USD","in_stock":true},{"title":"2-7\/8\" x 9-3\/4\" \/ SMART Ultimate \/ Single","offer_id":60218609566080,"sku":"CQE-RC-04004","price":99.0,"currency_code":"USD","in_stock":true},{"title":"2-7\/8\" x 9-3\/4\" \/ SMART Ultimate \/ Pack of 2","offer_id":60218609598848,"sku":"CQE-RC-04004-2PK","price":198.0,"currency_code":"USD","in_stock":true},{"title":"2-7\/8\" x 9-3\/4\" \/ SMART Ultimate \/ Pack of 4","offer_id":60218609631616,"sku":"CQE-RC-04004-4PK","price":396.0,"currency_code":"USD","in_stock":true},{"title":"2-7\/8\" x 20\" \/ SMART Plus \/ Single","offer_id":60218609664384,"sku":"CQE-RC-04016","price":158.0,"currency_code":"USD","in_stock":true},{"title":"2-7\/8\" x 20\" \/ SMART Plus \/ Pack of 2","offer_id":60218609697152,"sku":"CQE-RC-04016-2PK","price":316.0,"currency_code":"USD","in_stock":true},{"title":"2-7\/8\" x 20\" \/ SMART Plus \/ Pack of 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