{"product_id":"pentairwaterpoolandspainc_25021-2025","title":"Pentair Sand Lower Plumbing Rebuild Kit for Sta-Rite System:3 SS-Series Sand Filter S8S70 | 25021-2025","description":"\u003ch3\u003eOEM Sand Conversion Kit for the Sta-Rite System:3 S8S70 Sand Filter\u003c\/h3\u003e\n\u003cp\u003eThe Pentair 25021-2025 is the OEM Sand Rebuild Kit for the Sta-Rite® System:3® SS-Series Sand Filter, model S8S70. If you are converting or rebuilding the internal sand filter assembly on this specific model, this is the factory-matched kit.  \u003cem\u003eThis is ONLY for the S8S70 filter - the S7S50 filter uses conversion kit 25021-2021.\u003c\/em\u003e\u003cstrong\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"background-color: #fff3cd; border: 2px solid #FFEAA7; padding: 15px; border-radius: 5px; margin: 15px 0; color: #856404;\"\u003e\u003cstrong\u003e⚠️ IMPORTANT: THIS LISTING IS A KIT — NOT A SINGLE PART\u003c\/strong\u003e\u003cbr\u003eThe 25021-2025 is a complete Sand Conversion Kit. Verify the contents of this kit against your filter's service documentation before ordering to confirm all required components are included.\u003c\/p\u003e\n\u003cp\u003eThis kit provides the components needed to convert or restore the sand filtration system within the Sta-Rite System:3 S8S70. Using the OEM-matched kit ensures correct fit and function within the filter's internal assembly. Always match the part number on your existing components or your filter's service manual before ordering.\u003c\/p\u003e\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003ctable style=\"width: 100%; border-collapse: collapse; margin: 20px 0; border: 1px solid #ccc;\"\u003e\n\u003ctbody\u003e\n\u003ctr style=\"background-color: #f8f9fa;\"\u003e\n\u003ctd style=\"border: 1px solid #ccc; padding: 10px;\"\u003e\u003cstrong\u003ePentair Part Number\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #ccc; padding: 10px;\"\u003e25021-2025\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border: 1px solid #ccc; padding: 10px;\"\u003e\u003cstrong\u003eAlso Known As\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #ccc; padding: 10px;\"\u003eSta-Rite 25021-2025 (Pentair legacy brand)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background-color: #f8f9fa;\"\u003e\n\u003ctd style=\"border: 1px solid #ccc; padding: 10px;\"\u003e\u003cstrong\u003ePart Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #ccc; padding: 10px;\"\u003eSand Conversion Kit\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border: 1px solid #ccc; padding: 10px;\"\u003e\u003cstrong\u003eQuantity Included\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #ccc; padding: 10px;\"\u003eKit\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3\u003ePro Tip\u003c\/h3\u003e\n\u003cp\u003eBefore ordering, confirm the model number on your filter's label matches S8S70 exactly. The System:3 line includes multiple tank sizes and configurations — the 25021-2025 kit is specific to the S8S70 model. When in doubt, cross-reference the part number printed on your existing internal components against this SKU.\u003c\/p\u003e\n\u003c!-- wft:processed:manual:2026-04-06 --\u003e","brand":"Pentair","offers":[{"title":"Default Title","offer_id":53980243394835,"sku":"25021-2025","price":224.99,"currency_code":"USD","in_stock":true}],"url":"https:\/\/poolaroo.com\/products\/pentairwaterpoolandspainc_25021-2025","provider":"Poolaroo","version":"1.0","type":"link"}