{"product_id":"pool-filter-cartridge-set-s7m400-400-sq-ft-sta-rite-system-3-inner-outer-170146","title":"Pool Filter Cartridge Set S7M400 400 Sq Ft Sta-Rite System 3 Inner Outer 170146","description":"Aftermarket replacement cartridge module set for the Sta-Rite System 3 S7M400 filter. New, complete set of 2.\u003cbr\u003e\u003cbr\u003eThis is an aftermarket replacement set. It is not manufactured by Sta-Rite or Pentair.\u003cbr\u003e\u003cbr\u003eFits: Sta-Rite System 3 S7M400 modular media cartridge filter, 400 sq ft\u003cbr\u003eSet includes: 1 inner module and 1 outer module\u003cbr\u003eTotal filtration area: 400 sq ft\u003cbr\u003eModule areas: 264 sq ft and 136 sq ft\u003cbr\u003e\u003cbr\u003eReplaces\u003cbr\u003e170146 kit\u003cbr\u003e25022-0224S\u003cbr\u003e25021-0224S\u003cbr\u003e\u003cbr\u003eThe System 3 design combines the cartridge and the water collecting manifold into one module, with the manifold sitting between the inner and outer pleats. Water is filtered through both the outer fabric surface and the inner core surface, which is where the 400 sq ft of area comes from in a tank this size.\u003cbr\u003e\u003cbr\u003eReplace both modules as a set. Running a new module against a worn one puts uneven load on the new one and shortens its life.\u003cbr\u003e\u003cbr\u003eBefore ordering, read the part numbers molded into your existing cartridges and match them to the numbers above. Sta-Rite used more than one small module across the System 3 range and they are not interchangeable.\u003cbr\u003e\u003cbr\u003eNote: the S7M400 uses 7 clamps and nuts. If your filter uses 8, you have an S8M model and this set will not fit.\u003cbr\u003e\u003cbr\u003eADDITIONAL INFORMATION FOR VERIFICATION: \u003cbr\u003eType: Pool Filter Cartridge\u003cbr\u003eFilter Area: 400 sq ft\u003cbr\u003eNumber of Cartridges: 2\u003cbr\u003eConfiguration: Inner and Outer Module Set\u003cbr\u003eCompatible Filter Model: Sta-Rite System 3 S7M400\u003cbr\u003eInterchange Part Number: 170146, 25022-0224S, 25021-0224S\u003cbr\u003ePool Type: In-Ground\u003cbr\u003eMaterial: Polyester Filter Fabric\u003cbr\u003eCondition: New","brand":"AFTERMARKET","offers":[{"title":"Default Title","offer_id":45756322807987,"sku":"C-0023","price":499.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0743\/1356\/4339\/files\/f81ad89d-0a7a-4b31-ad62-e48c28f245a0.jpg?v=1785715679","url":"https:\/\/aski.deals\/products\/pool-filter-cartridge-set-s7m400-400-sq-ft-sta-rite-system-3-inner-outer-170146","provider":"ASKI Deals","version":"1.0","type":"link"}