{"product_id":"pentair-pleatco-ultra-a6-ccp420-cartridges-179135","title":"Pleatco Ultra-A6 CCP420 Filter Cartridges 4-Pack | 179135","description":"\u003ch2 class=\"PDq2pG_selectionAnchorContainer\"\u003eKey Benefits + Filter Compatibility\u003cspan class=\"PDq2pG_selectionAnchor\"\u003e\u003c\/span\u003e\n\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePentair Pleatco Ultra replacement cartridge set SKU 179135\u003c\/strong\u003e includes four cartridges for the Pentair Clean \u0026amp; Clear® Plus 420 cartridge filter.\u003c\/li\u003e\n\u003cli\u003eProvides \u003cstrong\u003e420 square feet of total filtration area\u003c\/strong\u003e, with approximately 105 square feet of media per cartridge.\u003c\/li\u003e\n\u003cli\u003ePleatco model \u003cstrong\u003eULTRA-A6-PAK4\u003c\/strong\u003e is identified in Pentair’s current parts catalog as the four-cartridge Ultra set for the Clean \u0026amp; Clear Plus 420.\u003c\/li\u003e\n\u003cli\u003ePurePleat™ technology helps reduce pleat bunching and makes trapped debris easier to rinse from the cartridge surface.\u003c\/li\u003e\n\u003cli\u003ePoint Bonded filtration fabric is designed for consistent media stability and dirt capture.\u003c\/li\u003e\n\u003cli\u003eFree Flow Core construction creates additional pathways for water to reach the filter media.\u003c\/li\u003e\n\u003cli\u003eReplaces all four filter elements together to support balanced water flow and even debris loading throughout the filter tank.\u003c\/li\u003e\n\u003cli\u003eEach cartridge measures approximately \u003cstrong\u003e7 inches in diameter by 26-1\/16 inches long\u003c\/strong\u003e, with 3-inch open top and bottom connections.\u003c\/li\u003e\n\u003cli\u003eCommonly associated with individual Pentair replacement cartridge number \u003cstrong\u003eR173576\u003c\/strong\u003e.\u003c\/li\u003e\n\u003cli\u003eBefore ordering, confirm that the equipment label identifies the filter as a \u003cstrong\u003ePentair Clean \u0026amp; Clear Plus 420 or CCP420\u003c\/strong\u003e.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003ePentair identifies ULTRA-A6-PAK4 as the Pleatco Ultra four-pack for the Clean \u0026amp; Clear Plus 420, while Pleatco’s Ultra design combines PurePleat, Point Bonded fabric, and a Free Flow Core. \u003cspan class=\"\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003eQuick Product Summary\u003c\/h2\u003e\n\u003cp\u003eThe Pentair Pleatco Ultra-A6 cartridge set is a complete four-pack replacement for the Pentair Clean \u0026amp; Clear Plus 420 pool filter. Identified by SKU 179135, this set provides 420 square feet of total filtration area and is designed to restore effective debris capture and balanced flow when the original cartridges have become worn, damaged, or difficult to clean.\u003c\/p\u003e\n\u003cp\u003eExplore additional \u003ca rel=\"noopener\" class=\"decorated-link\" href=\"https:\/\/benchmarkpoolsupply.com\/collections\/cartridge-filters\"\u003epool filter cartridges\u003c\/a\u003e for other filter sizes and equipment models. \u003cspan class=\"\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003eBest For\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003ePentair Clean \u0026amp; Clear Plus 420 cartridge filters\u003c\/li\u003e\n\u003cli\u003eResidential in-ground pool filtration systems\u003c\/li\u003e\n\u003cli\u003eReplacing all four cartridges as a balanced set\u003c\/li\u003e\n\u003cli\u003eFilters with worn, damaged, or heavily embedded cartridges\u003c\/li\u003e\n\u003cli\u003ePool owners comparing Pleatco Ultra and other CCP420 replacement options\u003c\/li\u003e\n\u003cli\u003eSystems requiring four 105-square-foot cartridge elements\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eWhy This Matters\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eRestores the filter’s full 420-square-foot media capacity\u003c\/li\u003e\n\u003cli\u003eHelps capture dirt, debris, and suspended particles\u003c\/li\u003e\n\u003cli\u003eSupports balanced flow across all four cartridges\u003c\/li\u003e\n\u003cli\u003eHelps reduce uneven loading caused by mixing old and new cartridges\u003c\/li\u003e\n\u003cli\u003eReplaces cartridges with torn pleats, damaged end caps, or deteriorated media\u003c\/li\u003e\n\u003cli\u003eMakes routine cartridge cleaning and inspection easier\u003c\/li\u003e\n\u003cli\u003eHelps maintain proper filtration without replacing the complete filter tank\u003c\/li\u003e\n\u003cli\u003eProvides clear model and part identification to reduce wrong-cartridge orders\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eCommon Signs You Need This \/ Use This When\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eCartridge pleats are torn, flattened, frayed, or separating\u003c\/li\u003e\n\u003cli\u003eEnd caps or internal cores are cracked or damaged\u003c\/li\u003e\n\u003cli\u003eSupport bands are loose, broken, or missing\u003c\/li\u003e\n\u003cli\u003eFilter pressure rises again shortly after the cartridges are cleaned\u003c\/li\u003e\n\u003cli\u003eEmbedded oils, scale, or debris cannot be fully removed\u003c\/li\u003e\n\u003cli\u003eWater clarity does not improve after proper cleaning and water balancing\u003c\/li\u003e\n\u003cli\u003eThe cartridges no longer fit securely around the upper and lower manifolds\u003c\/li\u003e\n\u003cli\u003eYou are servicing a Clean \u0026amp; Clear Plus 420 and want to replace all four elements together\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eTorn pleats, fraying bands, cracked end caps, and repeated pressure increases after cleaning are practical indications that cartridge replacement may be necessary. \u003cspan class=\"\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003eProduct Specifications\u003c\/h2\u003e\n\u003cdiv class=\"TyagGW_tableContainer\"\u003e\n\u003cdiv class=\"group TyagGW_tableWrapper flex flex-col-reverse w-fit\" tabindex=\"-1\"\u003e\n\u003ctable class=\"w-fit min-w-(--thread-content-width)\"\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth class=\"last:pe-10\"\u003eSpecification\u003c\/th\u003e\n\u003cth class=\"last:pe-10\"\u003eDetails\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eBrand\u003c\/td\u003e\n\u003ctd\u003ePentair \/ Pleatco\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct line\u003c\/td\u003e\n\u003ctd\u003ePleatco Ultra™\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct type\u003c\/td\u003e\n\u003ctd\u003eReplacement pool filter cartridge set\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePentair SKU \/ MPN\u003c\/td\u003e\n\u003ctd\u003e179135\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePleatco model reference\u003c\/td\u003e\n\u003ctd\u003eULTRA-A6-PAK4\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCompatible filter\u003c\/td\u003e\n\u003ctd\u003ePentair Clean \u0026amp; Clear Plus 420 \/ CCP420\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePackage quantity\u003c\/td\u003e\n\u003ctd\u003e4 cartridges\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFiltration area per cartridge\u003c\/td\u003e\n\u003ctd\u003eApproximately 105 sq. ft.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTotal filtration area\u003c\/td\u003e\n\u003ctd\u003e420 sq. ft.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eApproximate cartridge diameter\u003c\/td\u003e\n\u003ctd\u003e7 inches\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eApproximate cartridge length\u003c\/td\u003e\n\u003ctd\u003e26-1\/16 inches\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTop opening\u003c\/td\u003e\n\u003ctd\u003e3 inches, open\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBottom opening\u003c\/td\u003e\n\u003ctd\u003e3 inches, open\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eIndividual cartridge reference\u003c\/td\u003e\n\u003ctd\u003ePentair R173576\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFiltration media\u003c\/td\u003e\n\u003ctd\u003ePleated pool filter media\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFiltration technologies\u003c\/td\u003e\n\u003ctd\u003ePurePleat™, Point Bonded fabric and Free Flow Core\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eApplication\u003c\/td\u003e\n\u003ctd\u003eSwimming-pool cartridge filtration\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eUPC \/ Barcode\u003c\/td\u003e\n\u003ctd\u003e788379886202\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCategory\u003c\/td\u003e\n\u003ctd\u003eReplacement pool filter cartridges\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cp\u003eThe model, quantity and CCP420 application are supported by Pentair’s catalog and industry listings. The UPC associated with Pentair SKU 179135 is 788379886202. \u003cspan class=\"\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003eCompatibility \/ Fitment Notes\u003c\/h2\u003e\n\u003cp\u003eThis four-pack is designed for the \u003cstrong\u003ePentair Clean \u0026amp; Clear Plus 420\u003c\/strong\u003e, commonly identified as the \u003cstrong\u003eCCP420\u003c\/strong\u003e. The filter uses four matching cartridges to provide a combined 420 square feet of filtration area.\u003c\/p\u003e\n\u003cp\u003eDo not select cartridges solely by appearance. Pentair produces Clean \u0026amp; Clear Plus filters in several capacities, including 240, 320, 420 and 520 square feet, and the cartridge lengths differ between models.\u003c\/p\u003e\n\u003cp\u003eBefore ordering:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eRead the model number on the filter tank label.\u003c\/li\u003e\n\u003cli\u003eConfirm that the filter is a Clean \u0026amp; Clear Plus 420 or CCP420.\u003c\/li\u003e\n\u003cli\u003eCompare the existing cartridge’s diameter, length and opening sizes.\u003c\/li\u003e\n\u003cli\u003eConfirm SKU 179135 or the ULTRA-A6-PAK4 reference.\u003c\/li\u003e\n\u003cli\u003eDo not substitute cartridges made for the CCP320 or CCP520.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eFor another compatible cartridge option, compare the \u003ca class=\"decorated-link\" rel=\"noopener\" href=\"https:\/\/benchmarkpoolsupply.com\/products\/unicel-c-7471-4-105-sq-ft-cartridge-filter-4-pack\"\u003eUnicel C-7471-4 CCP420 cartridge set\u003c\/a\u003e. \u003cspan class=\"\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003eInstallation \/ Use Notes\u003c\/h2\u003e\n\u003cp\u003eTurn the circulation pump off and completely relieve pressure from the filter tank before loosening the clamp or opening the filter. Never attempt to open, tighten, or service a pressurized pool filter.\u003c\/p\u003e\n\u003cp\u003eRemove the existing cartridges and inspect the manifolds, air-bleed assembly, tank O-ring and clamp components before installing the new set. Position each cartridge correctly between the lower and upper manifolds, then reassemble the filter according to the Pentair instructions.\u003c\/p\u003e\n\u003cp\u003eAfter restarting the system, bleed trapped air from the filter and record the clean starting pressure. Clean the cartridges as operating pressure and pool conditions require. Find replacement gauges, O-rings, air-bleed components and clamp parts in our \u003ca rel=\"noopener\" class=\"decorated-link\" href=\"https:\/\/benchmarkpoolsupply.com\/collections\/filter-parts?utm_source=chatgpt.com\"\u003epool filter parts\u003c\/a\u003e collection. Pentair warns that air and pressure must be fully relieved before servicing a Clean \u0026amp; Clear Plus filter. \u003cspan class=\"\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003eBuy with Confidence\u003c\/h2\u003e\n\u003cp\u003eBenchmark Pool Supply helps pool owners and service professionals match replacement cartridges by filter model, cartridge dimensions and manufacturer part number. Clear equipment identification is especially important because Clean \u0026amp; Clear Plus 320, 420 and 520 filters use similar-looking but differently sized cartridge sets.\u003c\/p\u003e\n\u003cp\u003eShop additional \u003ca class=\"decorated-link\" rel=\"noopener\" href=\"https:\/\/benchmarkpoolsupply.com\/collections\/pentair-pool-parts?utm_source=chatgpt.com\"\u003ePentair pool parts\u003c\/a\u003e, complete \u003ca class=\"decorated-link\" rel=\"noopener\" href=\"https:\/\/benchmarkpoolsupply.com\/collections\/pool-filters?utm_source=chatgpt.com\"\u003epool filters\u003c\/a\u003e, and professional filtration components from a pool supply team familiar with real-world equipment service. \u003cspan class=\"\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003e\u003cbr\u003e\u003c\/h2\u003e","brand":"Pentair","offers":[{"title":"Default Title","offer_id":43539592708170,"sku":"179135","price":279.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0637\/6580\/7178\/files\/ChatGPTImageSep17_2026_08_57_59AM.png?v=1789660685","url":"https:\/\/benchmarkpoolsupply.com\/products\/pentair-pleatco-ultra-a6-ccp420-cartridges-179135","provider":"Benchmark Pool Supply","version":"1.0","type":"link"}