{"product_id":"pentair-170147-450sqf-system-3-modular-inner-and-outer-cartridge-pack","title":"Pentair 170147 System:3 S8M150 Inner \u0026 Outer Cartridge Pack – 450 Sq Ft","description":"\u003ch2\u003eComplete S8M150 Replacement Media Set + 450 Sq Ft Filtration\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eGenuine Pentair replacement cartridge pack for the Sta-Rite System:3 S8M150 modular media filter.\u003c\/li\u003e\n\u003cli\u003eIncludes both the inner and outer replacement modules required for the S8M150.\u003c\/li\u003e\n\u003cli\u003eProvides 450 square feet of total filter area when the two modules are used together.\u003c\/li\u003e\n\u003cli\u003eIncludes 191 sq. ft. inner module 25021-0202S and 259 sq. ft. outer module 25022-0203S.\u003c\/li\u003e\n\u003cli\u003eExact Pentair part number 170147 helps avoid ordering the wrong System:3 cartridge set.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eQuick Product Summary\u003c\/h2\u003e\u003cp\u003eThe Pentair 170147 replacement cartridge pack is the complete inner-and-outer modular media set for the Sta-Rite System:3 S8M150 cartridge filter. Pentair identifies 170147 specifically as the S8M150 Inner \u0026amp; Outer Replacement Cartridge Pack, making it the correct complete media replacement when both filter modules in an S8M150 need to be replaced.\u003c\/p\u003e\u003cp\u003eThe set combines a 191 sq. ft. inner cartridge module, Pentair part 25021-0202S, with a 259 sq. ft. outer cartridge module, Pentair part 25022-0203S. Together they provide the S8M150 system’s full 450 sq. ft. filtration area. This is important because the System:3 design uses nested inner and outer media modules rather than a conventional single cartridge.\u003c\/p\u003e\u003ch2\u003eBest For\u003c\/h2\u003e\u003cp\u003eOwners and service professionals replacing both modular media cartridges in a Pentair \/ Sta-Rite System:3 S8M150 filter.\u003c\/p\u003e\u003ch2\u003eWhy This Matters\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003ePart 170147 replaces both filtration modules at the same time, helping restore the complete 450 sq. ft. media set.\u003c\/li\u003e\n\u003cli\u003eUsing the exact S8M150 cartridge pack avoids confusion with other System:3 models that use different cartridge sizes.\u003c\/li\u003e\n\u003cli\u003eThe included inner and outer modules are the two specific Pentair media components listed for the S8M150.\u003c\/li\u003e\n\u003cli\u003eReplacing heavily worn, damaged, or difficult-to-clean media can help restore normal filtration performance when the filter itself is otherwise serviceable.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eCommon Signs \/ Use This When\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eYour filter model is confirmed as Sta-Rite System:3 S8M150.\u003c\/li\u003e\n\u003cli\u003eBoth the inner and outer cartridge modules are due for replacement.\u003c\/li\u003e\n\u003cli\u003eThe existing media is damaged, deteriorated, or no longer cleaning effectively.\u003c\/li\u003e\n\u003cli\u003eYou want the complete OEM-style replacement set rather than purchasing the inner and outer modules separately.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eProduct Specifications\u003c\/h2\u003e\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eSpecification\u003c\/th\u003e\n\u003cth\u003eDetails\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBrand\u003c\/td\u003e\n\u003ctd\u003ePentair\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct Line\u003c\/td\u003e\n\u003ctd\u003eSta-Rite System:3 SM Series\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eManufacturer Part Number\u003c\/td\u003e\n\u003ctd\u003e170147\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eUPC \/ Barcode\u003c\/td\u003e\n\u003ctd\u003e788379886066\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCompatible Filter Model\u003c\/td\u003e\n\u003ctd\u003eS8M150\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTotal Filter Area\u003c\/td\u003e\n\u003ctd\u003e450 sq. ft.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInner Module\u003c\/td\u003e\n\u003ctd\u003e25021-0202S — 191 sq. ft.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOuter Module\u003c\/td\u003e\n\u003ctd\u003e25022-0203S — 259 sq. ft.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePack Contents\u003c\/td\u003e\n\u003ctd\u003e1 inner cartridge module + 1 outer cartridge module\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eApplication\u003c\/td\u003e\n\u003ctd\u003ePool filtration replacement media\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003ch2\u003eCompatibility \/ Fitment Notes\u003c\/h2\u003e\u003cp\u003ePentair 170147 is specifically listed for the Sta-Rite System:3 S8M150 modular media filter. Other System:3 models use different replacement packs: S7M120 uses 170145, S7M400 uses 170146, and S8M500 uses 170148. Verify the filter model on the equipment label before ordering rather than selecting by appearance alone.\u003c\/p\u003e\u003ch2\u003eInstallation \/ Use Notes\u003c\/h2\u003e\u003cp\u003eTurn off the circulation pump and fully relieve all filter pressure before opening the filter tank. Follow Pentair’s current System:3 service instructions for removing the tank cover and existing media modules. Remove the old inner and outer cartridges, inspect the tank sealing surfaces and related service parts, then install the replacement modules in the correct positions. Reassemble the filter according to the manufacturer’s procedure and confirm there are no leaks before returning the system to normal operation.\u003c\/p\u003e\u003cp\u003eNever attempt to open or service a pressurized pool filter. If the tank, clamp, pressure-relief components, or sealing surfaces show damage, have the filter inspected before startup.\u003c\/p\u003e\u003ch2\u003eBuy with Confidence\u003c\/h2\u003e\u003cp\u003eBenchmark Pool Supply helps customers match filter cartridges by exact filter model and manufacturer part number. For System:3 filters, confirming whether the filter is an S7M120, S7M400, S8M150, or S8M500 is especially important because each model uses a different inner-and-outer cartridge set.\u003c\/p\u003e\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\u003ch3\u003eWhat does Pentair 170147 include?\u003c\/h3\u003e\u003cp\u003eIt includes both replacement media modules for the System:3 S8M150: one 191 sq. ft. inner cartridge, part 25021-0202S, and one 259 sq. ft. outer cartridge, part 25022-0203S.\u003c\/p\u003e\u003ch3\u003eIs 170147 only the inner cartridge?\u003c\/h3\u003e\u003cp\u003eNo. Pentair 170147 is the complete inner-and-outer replacement cartridge pack for the S8M150, totaling 450 sq. ft. of filter area.\u003c\/p\u003e\u003ch3\u003eWhich filter does Pentair 170147 fit?\u003c\/h3\u003e\u003cp\u003eIt is specifically listed for the Sta-Rite System:3 S8M150 modular media filter.\u003c\/p\u003e\u003ch3\u003eWill 170147 fit an S8M500 or S7M120?\u003c\/h3\u003e\u003cp\u003eNo. Pentair lists different replacement packs for those models. Confirm the exact System:3 model number before ordering.\u003c\/p\u003e\u003ch3\u003eShould both cartridges be replaced together?\u003c\/h3\u003e\u003cp\u003ePart 170147 is sold as the complete inner-and-outer set. If both modules are worn or due for replacement, this pack replaces the full media set in one service.\u003c\/p\u003e","brand":"Pentair","offers":[{"title":"Default Title","offer_id":43233732231242,"sku":"170147","price":649.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0637\/6580\/7178\/files\/170147.jpg?v=1769550832","url":"https:\/\/benchmarkpoolsupply.com\/products\/pentair-170147-450sqf-system-3-modular-inner-and-outer-cartridge-pack","provider":"Benchmark Pool Supply","version":"1.0","type":"link"}