{"product_id":"hf-str3-400s7-set-premium-pool-filter-cartridge-inner-and-outer-set-replacement-for-400-sq-ft-sta-rite-25022-0224s-outer-and-25021-0223s-inner-system-3-s7m400-set","title":"HF-STR3-400S7-SET Premium Pool Filter Cartridge Inner and Outer Set - Replacement for 400 Sq. Ft. Sta-Rite 25022-0224S Outer and 25021-0223S Inner System 3 S7M400 Set","description":"\u003cdiv\u003e\n\u003ch1\u003eHurricane HF-STR3-400S7-SET Premium Pool Filter Cartridge Inner and Outer Set\u003c\/h1\u003e\n\u003cp\u003eDiscover the Hurricane HF-STR3-400S7-SET, a premium inner-and-outer cartridge replacement designed for Sta-Rite System 3 S7M400 pools (400 sq ft). This USA-made two-piece kit preserves filtration geometry, ensuring a balanced flow and reduced pump wear while delivering crystal-clear water with fewer backwashes all season long.\u003c\/p\u003e \u003ch2\u003eFeatures\u003c\/h2\u003e\n\u003cul\u003e \u003cli\u003eTwo-piece inner and outer replacement for Sta-Rite System 3 S7M400 (400 sq ft) ensures a like-new filtration setup.\u003c\/li\u003e \u003cli\u003eInner cartridge: 25.375\" L x 8.625\" D, 136 sq ft media, efficient debris capture with steady flow.\u003c\/li\u003e \u003cli\u003eOuter cartridge: 18.5\" L x 16.25\" D, 264 sq ft media, handles heavy load and longer cycles between cleanings.\u003c\/li\u003e \u003cli\u003ePremium point-bond media delivers tighter filtration than standard non-woven materials for clearer water.\u003c\/li\u003e \u003cli\u003eDurable end caps and advanced pleat design maximize flow and reduce bypass.\u003c\/li\u003e \u003cli\u003eUSA-made kit with precise fit minimizes install time and pump wear for reliability.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch2\u003eFinal Thoughts\u003c\/h2\u003e\n\u003cp\u003eReplacing both cartridges together extends filter life, lowers maintenance costs, and keeps pool water sparkling throughout the season. Ready for an upgrade? Add to cart or choose Subscribe \u0026amp; Save for the best price.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Hurricane Pool Filters","offers":[{"title":"Default Title","offer_id":51498166845757,"sku":"HF-STR3-400S7-SET","price":575.76,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0905\/3611\/6541\/files\/HF-STR_SET_Main_604893d0-2ab1-4233-bbfc-251b14cd9e72.png?v=1776876849","url":"https:\/\/www.duckiespoolsupply.com\/products\/hf-str3-400s7-set-premium-pool-filter-cartridge-inner-and-outer-set-replacement-for-400-sq-ft-sta-rite-25022-0224s-outer-and-25021-0223s-inner-system-3-s7m400-set","provider":"Duckies Pool Supply","version":"1.0","type":"link"}