{"product_id":"unicel_s-7172","title":"Unicel S-7172 Replacement Filter Disc for Sta-Rite System 2 PLM Series | 17\"","description":"\u003cp\u003eThis Unicel S-7172 filter disc is a direct replacement for the media used in \u003cstrong\u003eSta-Rite System 2 Modular DE filter models PLM100, PLM150, PLM200, and PLM300\u003c\/strong\u003e. Manufactured by Unicel, a trusted leader in pool filter technology, this high-quality aftermarket replacement delivers reliable filtration performance for residential and commercial swimming pools.\u003c\/p\u003e\n\n\u003cp style=\"color: #FF8C00; font-weight: bold; margin: 15px 0;\"\u003e\n⚠️ IMPORTANT: FILTER SYSTEM VERIFICATION\u003cbr\u003e\n\u003cstrong\u003eThis filter disc is designed specifically for Sta-Rite System 2 PLM Series modular DE filters. Verify your filter model number before ordering. Using incorrect filter media can damage your filtration system.\u003c\/strong\u003e\n\u003c\/p\u003e\n\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003ctable style=\"width: 100%; border-collapse: collapse; margin: 20px 0; border: 1px solid #ccc;\"\u003e\n\u003ctr style=\"background-color: #f8f9fa;\"\u003e\n\u003ctd style=\"border: 1px solid #ccc; padding: 10px;\"\u003e\u003cstrong\u003eOuter Diameter\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #ccc; padding: 10px;\"\u003e17\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border: 1px solid #ccc; padding: 10px;\"\u003e\u003cstrong\u003eReplaces OEM Part #\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #ccc; padding: 10px;\"\u003eSta-Rite 25021-0202S\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\u003eCompatible Filter Models\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #ccc; padding: 10px;\"\u003eSta-Rite System 2 PLM100, PLM150, PLM200, PLM300\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border: 1px solid #ccc; padding: 10px;\"\u003e\u003cstrong\u003eFilter Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #ccc; padding: 10px;\"\u003eModular Diatomaceous Earth (DE) Disc\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\u003eMaterial\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #ccc; padding: 10px;\"\u003eHigh-grade DE filter fabric with reinforced construction\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003cp\u003e\u003cstrong\u003eSystem Compatibility:\u003c\/strong\u003e This filter disc is compatible with chlorine, bromine, and saltwater pool systems. The modular DE disc design provides superior filtration down to 3-5 microns, capturing even the finest particles for crystal-clear water.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eProfessional Installation Note:\u003c\/strong\u003e Always turn off the pump and release all pressure from the filter tank via the air relief valve before opening the tank to replace filter discs. Verify proper disc alignment and seating before system startup.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003ePro Tip:\u003c\/strong\u003e When replacing filter media in your Sta-Rite System 2 modular DE filter, inspect the disc seating area and clean any debris from the manifold to ensure proper seal and filtration performance. Replace all discs in the set simultaneously for optimal system balance.\u003c\/p\u003e\n\u003cp class=\"sku-aliases\"\u003e\u003csmall\u003eAlso known as: S7172\u003c\/small\u003e\u003c\/p\u003e","brand":"Unicel","offers":[{"title":"Default Title","offer_id":53828217766163,"sku":"S-7172","price":28.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0920\/0687\/5411\/files\/UNFS7172_0.jpg?v=1771324879","url":"https:\/\/poolaroo.com\/products\/unicel_s-7172","provider":"Poolaroo","version":"1.0","type":"link"}