{"product_id":"pentair-170145-system-3-s7m120-cartridge-set","title":"Pentair Sta-Rite System 3 S7M120 Replacement Cartridge Set 170145 – 300 Sq Ft Inner \u0026 Outer Modules","description":"\u003cdiv style=\"max-width: 100%; color: #1f2937; line-height: 1.7;\" class=\"ups-product-desc\"\u003e\n\u003c!-- HERO --\u003e\n\u003cdiv style=\"background: linear-gradient(135deg,#0f4c81 0%,#1273b8 100%); color: #ffffff; border-radius: 18px; padding: 24px 20px; margin: 0 0 24px 0;\"\u003e\n\u003cdiv style=\"font-size: 13px; text-transform: uppercase; opacity: 0.9; margin-bottom: 8px;\"\u003eGenuine Pentair Replacement Cartridge Set\u003c\/div\u003e\n\u003ch2 style=\"margin: 0 0 10px 0; font-size: 30px; color: #ffffff;\"\u003ePentair Sta-Rite System 3 S7M120 Replacement Cartridge Set - Inner \u0026amp; Outer Modules\u003c\/h2\u003e\n\u003cp style=\"margin: 0; font-size: 16px; color: #ffffff;\"\u003eComplete genuine Pentair inner and outer replacement cartridge module set for Sta-Rite System 3 S7M120 modular media filters.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c!-- WARRANTY --\u003e\n\u003cdiv style=\"background: #f8fafc; border: 1px solid #e2e8f0; border-radius: 14px; padding: 16px; margin-bottom: 28px;\"\u003e\n\u003ch3 style=\"margin: 0 0 8px 0; font-size: 22px; color: #1e3a8a;\"\u003eWarranty Information\u003c\/h3\u003e\n\u003cp style=\"margin: 0; font-size: 16px;\"\u003e\u003cstrong\u003e60-Day Limited Manufacturer's Warranty\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"margin: 6px 0 0 0; font-size: 14px; color: #475569;\"\u003eUltimate Pools is your first point of contact for compatibility verification, installation guidance, and warranty support.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c!-- INTRO --\u003e\n\u003cdiv style=\"margin-bottom: 28px;\"\u003e\n\u003cp\u003eThe \u003cstrong\u003ePentair Sta-Rite System 3 Replacement Cartridge Set (170145)\u003c\/strong\u003e is a genuine OEM replacement module kit designed specifically for the \u003cstrong\u003eSta-Rite System 3 S7M120 modular media filter\u003c\/strong\u003e. This complete replacement set includes both the inner and outer filter cartridges required to restore your filtration system to peak operating performance.\u003c\/p\u003e\n\u003cp\u003eWith a combined \u003cstrong\u003e300 square feet of filtration area\u003c\/strong\u003e, the System 3 modular design delivers outstanding dirt-holding capacity, excellent hydraulic efficiency, and crystal-clear pool water. Replacing both cartridges together helps maintain balanced filtration, proper water flow, and longer filter cycles.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c!-- FEATURES --\u003e\n\u003cdiv style=\"margin-bottom: 32px;\"\u003e\n\u003ch3 style=\"font-size: 26px; margin: 0 0 18px 0; color: #0f172a;\"\u003eKey Features\u003c\/h3\u003e\n\u003cdiv style=\"display: grid; grid-template-columns: repeat(auto-fit,minmax(240px,1fr)); gap: 12px;\"\u003e\n\u003cdiv style=\"background: #f8fafc; border: 1px solid #dbeafe; border-radius: 14px; padding: 16px;\"\u003e\n\u003cstrong\u003eComplete OEM Module Set\u003c\/strong\u003e\u003cbr\u003eIncludes both the inner and outer replacement cartridges required for a complete System 3 filter service.\u003c\/div\u003e\n\u003cdiv style=\"background: #f8fafc; border: 1px solid #dbeafe; border-radius: 14px; padding: 16px;\"\u003e\n\u003cstrong\u003e300 Sq. Ft. Filtration\u003c\/strong\u003e\u003cbr\u003eCombined 100 sq. ft. inner and 200 sq. ft. outer cartridges provide exceptional filtration capacity.\u003c\/div\u003e\n\u003cdiv style=\"background: #f8fafc; border: 1px solid #dbeafe; border-radius: 14px; padding: 16px;\"\u003e\n\u003cstrong\u003eGenuine Pentair Quality\u003c\/strong\u003e\u003cbr\u003eManufactured to original Pentair specifications for proper fit, performance, and durability.\u003c\/div\u003e\n\u003cdiv style=\"background: #f8fafc; border: 1px solid #dbeafe; border-radius: 14px; padding: 16px;\"\u003e\n\u003cstrong\u003eBalanced Filtration\u003c\/strong\u003e\u003cbr\u003eMatching inner and outer cartridges help maintain proper system flow and filtration efficiency.\u003c\/div\u003e\n\u003cdiv style=\"background: #f8fafc; border: 1px solid #dbeafe; border-radius: 14px; padding: 16px;\"\u003e\n\u003cstrong\u003eLong Cleaning Cycles\u003c\/strong\u003e\u003cbr\u003eHigh-capacity media provides excellent dirt-holding capability for extended operation.\u003c\/div\u003e\n\u003cdiv style=\"background: #f8fafc; border: 1px solid #dbeafe; border-radius: 14px; padding: 16px;\"\u003e\n\u003cstrong\u003eEasy Replacement\u003c\/strong\u003e\u003cbr\u003eDirect replacement modules simplify maintenance and help restore original filter performance.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c!-- COMPATIBILITY --\u003e\n\u003cdiv style=\"margin-bottom: 32px;\"\u003e\n\u003ch3 style=\"font-size: 26px; margin: 0 0 16px 0; color: #0f172a;\"\u003eCompatibility \u003c\/h3\u003e\n\u003cdiv style=\"background: #f8fafc; border: 1px solid #dbeafe; border-radius: 14px; padding: 18px;\"\u003e\n\u003cp style=\"margin: 0 0 14px 0;\"\u003eCompatible with:\u003c\/p\u003e\n\u003cul style=\"margin: 0; padding-left: 20px;\"\u003e\n\u003cli\u003ePentair Sta-Rite System 3 S7M120 Modular Media Filter\u003c\/li\u003e\n\u003cli\u003eInner Cartridge: 25021-0200S\u003c\/li\u003e\n\u003cli\u003eOuter Cartridge: 25022-0201S\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp style=\"margin: 16px 0 0 0; font-size: 14px; color: #475569;\"\u003eThis complete replacement set is designed exclusively for the Sta-Rite System 3 S7M120 filter. Verify your filter model and replacement part number before ordering. Both cartridges should be replaced together for optimum filtration performance.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c!-- SPECS --\u003e\n\u003cdiv style=\"margin-bottom: 28px;\"\u003e\n\u003ch3 style=\"font-size: 24px;\"\u003eSpecifications\u003c\/h3\u003e\n\u003cdiv style=\"overflow-x: auto; border: 1px solid #e5e7eb; border-radius: 14px;\"\u003e\n\u003ctable style=\"width: 100%; min-width: 520px; border-collapse: collapse;\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 12px; border-bottom: 1px solid #e5e7eb;\"\u003e\u003cstrong\u003eSKU\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; border-bottom: 1px solid #e5e7eb;\"\u003e170145\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 12px; border-bottom: 1px solid #e5e7eb;\"\u003e\u003cstrong\u003eBrand\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; border-bottom: 1px solid #e5e7eb;\"\u003ePentair\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 12px; border-bottom: 1px solid #e5e7eb;\"\u003e\u003cstrong\u003eProduct Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; border-bottom: 1px solid #e5e7eb;\"\u003ePool Filter Cartridge Set\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 12px; border-bottom: 1px solid #e5e7eb;\"\u003e\u003cstrong\u003eTotal Filtration Area\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; border-bottom: 1px solid #e5e7eb;\"\u003e300 sq. ft.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 12px; border-bottom: 1px solid #e5e7eb;\"\u003e\u003cstrong\u003eInner Cartridge Area\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; border-bottom: 1px solid #e5e7eb;\"\u003e100 sq. ft.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 12px; border-bottom: 1px solid #e5e7eb;\"\u003e\u003cstrong\u003eOuter Cartridge Area\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; border-bottom: 1px solid #e5e7eb;\"\u003e200 sq. ft.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 12px; border-bottom: 1px solid #e5e7eb;\"\u003e\u003cstrong\u003eIncludes\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; border-bottom: 1px solid #e5e7eb;\"\u003e1 Inner Cartridge \u0026amp; 1 Outer Cartridge\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 12px; border-bottom: 1px solid #e5e7eb;\"\u003e\u003cstrong\u003eInner Cartridge Part Number\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; border-bottom: 1px solid #e5e7eb;\"\u003e25021-0200S\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 12px; border-bottom: 1px solid #e5e7eb;\"\u003e\u003cstrong\u003eOuter Cartridge Part Number\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; border-bottom: 1px solid #e5e7eb;\"\u003e25022-0201S\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 12px; border-bottom: 1px solid #e5e7eb;\"\u003e\u003cstrong\u003eCompatible Filter\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; border-bottom: 1px solid #e5e7eb;\"\u003ePentair Sta-Rite System 3 S7M120\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 12px; border-bottom: 1px solid #e5e7eb;\"\u003e\u003cstrong\u003ePackage Dimensions\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; border-bottom: 1px solid #e5e7eb;\"\u003e30.5 × 11 × 11 inches\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 12px; border-bottom: 1px solid #e5e7eb;\"\u003e\u003cstrong\u003eWarranty\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; border-bottom: 1px solid #e5e7eb;\"\u003e60-Day Limited Manufacturer's Warranty\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 12px;\"\u003e\u003cstrong\u003eApplication\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 12px;\"\u003eResidential and commercial swimming pool filtration\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c!-- FAQ --\u003e\n\u003cdiv\u003e\n\u003ch3 style=\"font-size: 26px; margin: 0 0 16px 0; color: #0f172a;\"\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cdiv style=\"background: #ffffff; border: 1px solid #e5e7eb; border-radius: 14px; overflow: hidden;\"\u003e\n\u003cdiv style=\"padding: 16px; border-bottom: 1px solid #e5e7eb;\"\u003e\n\u003cstrong\u003eDoes this include both filter cartridges?\u003c\/strong\u003e\u003cbr\u003eYes. This kit includes both the inner (100 sq. ft.) and outer (200 sq. ft.) cartridges required for a complete S7M120 filter replacement.\u003c\/div\u003e\n\u003cdiv style=\"padding: 16px; border-bottom: 1px solid #e5e7eb;\"\u003e\n\u003cstrong\u003eWhich filter does this cartridge set fit?\u003c\/strong\u003e\u003cbr\u003eThis replacement set is designed specifically for the Pentair Sta-Rite System 3 S7M120 modular media filter.\u003c\/div\u003e\n\u003cdiv style=\"padding: 16px; border-bottom: 1px solid #e5e7eb;\"\u003e\n\u003cstrong\u003eShould both cartridges be replaced together?\u003c\/strong\u003e\u003cbr\u003eYes. Replacing both the inner and outer cartridges together helps maintain balanced filtration, proper water flow, and maximum filter efficiency.\u003c\/div\u003e\n\u003cdiv style=\"padding: 16px;\"\u003e\n\u003cstrong\u003eHow often should I clean the cartridges?\u003c\/strong\u003e\u003cbr\u003eClean the cartridges whenever the filter pressure increases approximately 8–10 PSI above the clean starting pressure. Regular cleaning helps maximize cartridge life and filtration performance. For a deep clean, you can use the \u003ca style=\"color: #1d4ed8; font-weight: 600; text-decoration: none;\" rel=\"noopener noreferrer\" href=\"https:\/\/ultimatepools.ca\/products\/klean-filter-pool-spa-filter-cleaner\"\u003eSummer Smiles Klean Filter\u003c\/a\u003e.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"Pentair","offers":[{"title":"Default Title","offer_id":42257527832745,"sku":"170145","price":659.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0553\/2647\/4409\/products\/Sta-RiteSystem3CompleteModuleSet_500x_92519b1e-325a-4d65-8406-39f30df1066e.webp?v=1654365413","url":"https:\/\/ultimatepools.ca\/products\/pentair-170145-system-3-s7m120-cartridge-set","provider":"ultimatepools.ca","version":"1.0","type":"link"}