{"product_id":"small-cartridge-s8m500","title":"Sta-Rite Small Cartridge, S8M500","description":"\u003cp\u003eSta-Rite 25021-0224S is the small replacement cartridge for the System 3 S8M500 filter. It is the genuine Sta-Rite element.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eTwo cartridges, one filter\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eThe S8M500 runs a large element and a small one together. This listing is the small cartridge. The large one is a separate part number, and it is worth changing the pair at the same time so both elements load and clean at the same rate.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhen to replace rather than wash\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eCartridges are washable, but not forever. Once a thorough clean no longer brings filter pressure back down near where it starts after a change, the media is loaded past recovery. Torn, matted or collapsed pleats are the other clear signal, and no amount of washing gets those back.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eFitment\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eListed for the Sta-Rite System 3 S8M500. Other filters in the System 3 line, including the S7M120, S7M400 and S8M150, take their own cartridge sets, so match the model on your tank label.\u003c\/p\u003e","brand":"Sta-Rite","offers":[{"title":"Default Title","offer_id":48627982926036,"sku":"STA-06-286","price":431.12,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0801\/9568\/2516\/files\/default_c365c044-cc41-46a3-9b09-45ccecd9aaf4.jpg?v=1788732323","url":"https:\/\/www.activepoolsupply.com\/products\/small-cartridge-s8m500","provider":"Active Pool Supply","version":"1.0","type":"link"}