{"product_id":"pentair-188594-quad-de-cartridge-filter-100-sq-ft-high-clarity-pool-filtration","title":"Pentair 188594 Quad DE Cartridge Filter – 100 Sq Ft High-Clarity Pool Filtration","description":"\u003cp data-start=\"486\" data-end=\"891\"\u003eThe \u003cstrong data-start=\"490\" data-end=\"535\"\u003ePentair Quad DE Cartridge Filter (188594)\u003c\/strong\u003e delivers \u003cstrong data-start=\"545\" data-end=\"574\"\u003eexceptional water clarity\u003c\/strong\u003e by combining the \u003cstrong data-start=\"592\" data-end=\"618\"\u003efiltration power of DE\u003c\/strong\u003e with the \u003cstrong data-start=\"628\" data-end=\"674\"\u003econvenience of cartridge-style maintenance\u003c\/strong\u003e. Featuring \u003cstrong data-start=\"686\" data-end=\"734\"\u003e100 square feet of effective filtration area\u003c\/strong\u003e, this filter captures fine debris and contaminants, producing \u003cstrong data-start=\"797\" data-end=\"828\"\u003esparkling, clean pool water\u003c\/strong\u003e with reduced maintenance compared to traditional DE systems.\u003c\/p\u003e \u003cp data-start=\"893\" data-end=\"1255\"\u003eDesigned for \u003cstrong data-start=\"906\" data-end=\"954\"\u003eefficient operation and long-term durability\u003c\/strong\u003e, the Quad DE filter uses \u003cstrong data-start=\"980\" data-end=\"1022\"\u003efour easy-to-remove cartridge elements\u003c\/strong\u003e, allowing for quick cleaning without the need for backwashing. Its \u003cstrong data-start=\"1090\" data-end=\"1118\"\u003erugged tank construction\u003c\/strong\u003e ensures reliable performance season after season, making it a smart choice for pool owners who want \u003cstrong data-start=\"1219\" data-end=\"1252\"\u003ehigh clarity with less hassle\u003c\/strong\u003e.\u003c\/p\u003e \u003ch2 data-start=\"1262\" data-end=\"1284\"\u003e\u003cstrong data-start=\"1265\" data-end=\"1282\"\u003e\u003cmeta charset=\"utf-8\"\u003e \u003cstrong data-start=\"490\" data-end=\"535\"\u003ePentair Quad DE Cartridge Filter (188594) \u003c\/strong\u003eCompatibility\u003c\/strong\u003e\u003c\/h2\u003e \u003cul data-start=\"1285\" data-end=\"1473\"\u003e \u003cli data-start=\"1285\" data-end=\"1343\"\u003e \u003cp data-start=\"1287\" data-end=\"1343\"\u003eCompatible with \u003cstrong data-start=\"1303\" data-end=\"1341\"\u003eresidential in-ground pool systems\u003c\/strong\u003e\u003c\/p\u003e \u003c\/li\u003e \u003cli data-start=\"1344\" data-end=\"1410\"\u003e \u003cp data-start=\"1346\" data-end=\"1410\"\u003eWorks with \u003cstrong data-start=\"1357\" data-end=\"1408\"\u003ePentair pool pumps and standard plumbing setups\u003c\/strong\u003e\u003c\/p\u003e \u003c\/li\u003e \u003cli data-start=\"1411\" data-end=\"1473\"\u003e \u003cp data-start=\"1413\" data-end=\"1473\"\u003eDesigned for \u003cstrong data-start=\"1426\" data-end=\"1471\"\u003eQuad DE replacement and new installations\u003c\/strong\u003e\u003c\/p\u003e \u003c\/li\u003e \u003c\/ul\u003e\u003ch2\u003eKey Features\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eSupplied under part number 188594 for exact-match ordering.\u003c\/li\u003e\n\u003cli\u003eFilter area: 100 sq. ft..\u003c\/li\u003e\n\u003cli\u003eFiltration media sized by effective filter area and physical dimensions.\u003c\/li\u003e\n\u003cli\u003eShips from our US warehouse with tracking on dispatch.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eSpecifications\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e Pentair\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer part number:\u003c\/strong\u003e 188594\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCategory:\u003c\/strong\u003e Pool Filters\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCondition:\u003c\/strong\u003e New\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFilter area:\u003c\/strong\u003e 100 sq. ft.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUPC \/ GTIN:\u003c\/strong\u003e 788379723668\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\u003ch3\u003eWhat part number is this pool filter?\u003c\/h3\u003e\u003cp\u003eThis item is supplied under part number 188594. Match that number against your equipment's parts diagram before ordering.\u003c\/p\u003e\u003ch3\u003eHow often should filter cartridges be replaced?\u003c\/h3\u003e\u003cp\u003eMost cartridges last two to five years depending on bather load, water chemistry and how often they are cleaned. Replace when pressure rises quickly after cleaning, or when the pleats are torn, matted or permanently discoloured.\u003c\/p\u003e\u003ch3\u003eHow do I know what size filter cartridge I need?\u003c\/h3\u003e\u003cp\u003eFilter cartridges are specified by square footage and physical dimensions. Measure the length, outside diameter and end cap type of your old cartridge, or match the part number printed on its end cap.\u003c\/p\u003e\u003ch3\u003eWhat is the difference between cartridge, sand and D.E. filters?\u003c\/h3\u003e\u003cp\u003eCartridge filters trap particles in pleated media and need no backwashing. Sand filters are lowest maintenance but filter to a coarser level. D.E. filters give the finest filtration but require recharging with powder after each backwash.\u003c\/p\u003e\u003ch3\u003eWhen should I backwash or clean the filter?\u003c\/h3\u003e\u003cp\u003eClean when the pressure gauge reads 8 to 10 PSI above the clean starting pressure. Cleaning too often on a cartridge shortens its life; waiting too long strains the pump.\u003c\/p\u003e\u003ch3\u003eHow do I confirm this part fits my equipment?\u003c\/h3\u003e\u003cp\u003eCheck the part number stamped on the component you are replacing, or find it on the parts schematic in your owner's manual. If the number differs or is unreadable, send us your equipment model and serial number and we will verify fitment before you order.\u003c\/p\u003e\u003ch3\u003eHow quickly does this ship?\u003c\/h3\u003e\u003cp\u003eIn-stock items ship from our US warehouse on business days. You will receive tracking by email once the order leaves the warehouse.\u003c\/p\u003e\u003ch3\u003eCan I return it if I ordered the wrong part?\u003c\/h3\u003e\u003cp\u003eUnopened, uninstalled items can be returned within 30 days. Equipment that has been installed or plumbed cannot be returned, so confirm fitment before installation.\u003c\/p\u003e\u003ch3\u003eIs this covered by a warranty?\u003c\/h3\u003e\u003cp\u003eManufacturer warranty terms vary by brand and product. Warranty claims generally require proof of purchase and, on installed equipment, evidence of professional installation.\u003c\/p\u003e\u003cscript type=\"application\/ld+json\"\u003e{\"@context\":\"https:\/\/schema.org\",\"@type\":\"FAQPage\",\"mainEntity\":[{\"@type\":\"Question\",\"name\":\"What part number is this pool filter?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"This item is supplied under part number 188594. Match that number against your equipment's parts diagram before ordering.\"}},{\"@type\":\"Question\",\"name\":\"How often should filter cartridges be replaced?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Most cartridges last two to five years depending on bather load, water chemistry and how often they are cleaned. Replace when pressure rises quickly after cleaning, or when the pleats are torn, matted or permanently discoloured.\"}},{\"@type\":\"Question\",\"name\":\"How do I know what size filter cartridge I need?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Filter cartridges are specified by square footage and physical dimensions. Measure the length, outside diameter and end cap type of your old cartridge, or match the part number printed on its end cap.\"}},{\"@type\":\"Question\",\"name\":\"What is the difference between cartridge, sand and D.E. filters?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Cartridge filters trap particles in pleated media and need no backwashing. Sand filters are lowest maintenance but filter to a coarser level. D.E. filters give the finest filtration but require recharging with powder after each backwash.\"}},{\"@type\":\"Question\",\"name\":\"When should I backwash or clean the filter?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Clean when the pressure gauge reads 8 to 10 PSI above the clean starting pressure. Cleaning too often on a cartridge shortens its life; waiting too long strains the pump.\"}},{\"@type\":\"Question\",\"name\":\"How do I confirm this part fits my equipment?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Check the part number stamped on the component you are replacing, or find it on the parts schematic in your owner's manual. If the number differs or is unreadable, send us your equipment model and serial number and we will verify fitment before you order.\"}},{\"@type\":\"Question\",\"name\":\"How quickly does this ship?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"In-stock items ship from our US warehouse on business days. You will receive tracking by email once the order leaves the warehouse.\"}},{\"@type\":\"Question\",\"name\":\"Can I return it if I ordered the wrong part?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Unopened, uninstalled items can be returned within 30 days. Equipment that has been installed or plumbed cannot be returned, so confirm fitment before installation.\"}},{\"@type\":\"Question\",\"name\":\"Is this covered by a warranty?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Manufacturer warranty terms vary by brand and product. Warranty claims generally require proof of purchase and, on installed equipment, evidence of professional installation.\"}}]}\u003c\/script\u003e","brand":"Pentair","offers":[{"title":"Default Title","offer_id":54193890984300,"sku":"188594","price":19321.51,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1000\/0872\/2796\/files\/PENEC188594_0.png?v=1786833460","url":"https:\/\/poolsupplyharbor.com\/products\/pentair-188594-quad-de-cartridge-filter-100-sq-ft-high-clarity-pool-filtration","provider":"Pool Supply Harbor","version":"1.0","type":"link"}