{"product_id":"pentairstaritesystem3cartridgefilter259sf250220203spen250220203s","title":"Pentair Sta-Rite System 3 Cartridge Filter 259 sf | 25022-0203S","description":"\u003cdiv\u003e\n  \u003ch2\u003ePentair \/ Sta-Rite 25022-0203S System:3 Modular Media Outer Cartridge (S8M150) | 259 Sq Ft\u003c\/h2\u003e\n\n  \u003cp\u003e\n    The Pentair \/ Sta-Rite \u003cstrong\u003e25022-0203S\u003c\/strong\u003e is the OEM replacement \u003cstrong\u003elarge outer cartridge module\u003c\/strong\u003e for the\n    Sta-Rite \u003cstrong\u003eSystem:3 Modular Media\u003c\/strong\u003e filter model \u003cstrong\u003eS8M150\u003c\/strong\u003e. This outer element provides\n    \u003cstrong\u003e259 square feet\u003c\/strong\u003e of filtration area and is used with the matching inner module to deliver high-capacity cartridge\n    filtration with strong flow and long cleaning cycles.\n  \u003c\/p\u003e\n\n  \u003ch3\u003eCompatibility\u003c\/h3\u003e\n  \u003cul\u003e\n    \u003cli\u003e\n\u003cstrong\u003eFits filter model:\u003c\/strong\u003e Sta-Rite System:3 Modular Media \u003cstrong\u003eS8M150\u003c\/strong\u003e\n\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eElement position:\u003c\/strong\u003e \u003cstrong\u003eOuter\u003c\/strong\u003e (large) cartridge module\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eFiltration area:\u003c\/strong\u003e \u003cstrong\u003e259 sq ft\u003c\/strong\u003e\n\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003ch3\u003eWhat This Part Does\u003c\/h3\u003e\n  \u003cul\u003e\n    \u003cli\u003eCaptures dirt and debris to keep water clear while maintaining strong system flow\u003c\/li\u003e\n    \u003cli\u003eRestores normal pressure and performance when the existing cartridge is worn or restricted\u003c\/li\u003e\n    \u003cli\u003eHelps extend time between cleanings compared to smaller cartridge filters\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003ch3\u003eCommon Signs It’s Time to Replace\u003c\/h3\u003e\n  \u003cul\u003e\n    \u003cli\u003eTears, splits, broken bands, or damaged end caps\u003c\/li\u003e\n    \u003cli\u003eFabric is brittle, deformed, or won’t clean up after a deep wash\/soak\u003c\/li\u003e\n    \u003cli\u003ePressure stays high shortly after cleaning (restricted media or permanent loading)\u003c\/li\u003e\n    \u003cli\u003eVisible collapse or distortion from over-tightening, water hammer, or prolonged high pressure\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003ch3\u003eInstallation Notes\u003c\/h3\u003e\n  \u003cul\u003e\n    \u003cli\u003eTurn off the pump and \u003cstrong\u003erelieve all pressure\u003c\/strong\u003e at the filter air relief before opening the tank.\u003c\/li\u003e\n    \u003cli\u003eRemove the old outer cartridge and rinse\/clean the tank interior and sealing surfaces.\u003c\/li\u003e\n    \u003cli\u003eInspect the tank O-ring and replace if flattened, cracked, swollen, or nicked; lubricate lightly with pool-safe silicone lubricant.\u003c\/li\u003e\n    \u003cli\u003eReinstall the cartridge squarely so it seats evenly—misalignment can cause bypass and poor filtration.\u003c\/li\u003e\n    \u003cli\u003eAfter reassembly, restart and record your \u003cstrong\u003eclean starting pressure\u003c\/strong\u003e as your baseline.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003ch3\u003eCleaning \u0026amp; Care Tips\u003c\/h3\u003e\n  \u003cul\u003e\n    \u003cli\u003eRinse thoroughly with a strong hose spray between pleats to remove debris.\u003c\/li\u003e\n    \u003cli\u003eFor oils\/lotions: use a cartridge filter cleaner soak before rinsing.\u003c\/li\u003e\n    \u003cli\u003eFor scale: use a descaler only after degreasing (cleaners first, acid\/descaler second).\u003c\/li\u003e\n    \u003cli\u003eClean when pressure rises about \u003cstrong\u003e8–10 PSI\u003c\/strong\u003e over your clean baseline (or per your service standard).\u003c\/li\u003e\n    \u003cli\u003eNever run the system without proper prime—overheating can damage cartridges and internal seals.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003ch3\u003eRelated Products (Aqua Pool Supply)\u003c\/h3\u003e\n  \u003cul\u003e\n    \u003cli\u003e\u003ca href=\"https:\/\/aquapoolsupply.com\/search?q=25022-0203S\"\u003e25022-0203S Outer Cartridge (Search)\u003c\/a\u003e\u003c\/li\u003e\n    \u003cli\u003e\u003ca href=\"https:\/\/aquapoolsupply.com\/search?q=25021-0202S\"\u003eS8M150 Inner Cartridge 25021-0202S (Search)\u003c\/a\u003e\u003c\/li\u003e\n    \u003cli\u003e\u003ca href=\"https:\/\/aquapoolsupply.com\/search?q=170147\"\u003eS8M150 Inner + Outer Cartridge Kit 170147 (Search)\u003c\/a\u003e\u003c\/li\u003e\n    \u003cli\u003e\u003ca href=\"https:\/\/aquapoolsupply.com\/search?q=System%203%20S8M150%20tank%20o-ring\"\u003eSystem:3 S8M150 Tank O-Ring (Search)\u003c\/a\u003e\u003c\/li\u003e\n    \u003cli\u003e\u003ca href=\"https:\/\/aquapoolsupply.com\/search?q=cartridge%20filter%20cleaner\"\u003eCartridge Filter Cleaner (Search)\u003c\/a\u003e\u003c\/li\u003e\n    \u003cli\u003e\u003ca href=\"https:\/\/aquapoolsupply.com\/search?q=pool%20silicone%20lubricant\"\u003ePool-Safe Silicone O-Ring Lubricant (Search)\u003c\/a\u003e\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003ch3\u003eMaintenance Tips\u003c\/h3\u003e\n  \u003cul\u003e\n    \u003cli\u003eRotate\/alternate cleaning (if you keep a spare set) to minimize downtime and improve water clarity.\u003c\/li\u003e\n    \u003cli\u003eKeep chemistry balanced—very low pH or high calcium conditions can shorten cartridge life.\u003c\/li\u003e\n    \u003cli\u003eIf pressure rises unusually fast, inspect for upstream debris, algae, or excessive oils loading the media.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\u003c\/div\u003e","brand":"Pentair","offers":[{"title":"Default Title","offer_id":52589949354300,"sku":"25022-0203S","price":516.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0736\/3280\/9276\/files\/pentair-sta-rite-system-3-cartridge-filter-259-sf-25022-0203s-cartridges-2700165.jpg?v=1771677733","url":"https:\/\/aquapoolsupply.com\/products\/pentairstaritesystem3cartridgefilter259sf250220203spen250220203s","provider":"Aqua Pool Supply","version":"1.0","type":"link"}