Pentair StaRite S7M120 Inner/Outer System Filter Cartridge (170145)

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Restore filtration performance in compatible System 3 modular cartridge filters with this genuine Pentair Pool Products S7M120 inner and outer cartridge pack, part 170145. The pair ed cartridge design provides the correct replacement media set for systems that rely on both inner and outer elements to capture fine debris.Use this pack when cartridges are heavily stained, damaged, pleats are collapsed, or cleaning no longer restores flow. Replacing both elements together helps maintain balanced filtration and avoids mismatched performance between old and new media. Inner and outer cartridge set for select Pentair System 3 filters Helps restore flow rate, clarity, and debris capture Ideal for scheduled filter media replacement Show more