Aqua Kleen AK-80004 Unicel Replacement Filter Cartridge for Swimming Pool and Spa 160 sq. ft., 10" OD, bar handle Top, Open Hole: 6" Bottom, 24 5/16" Long, AK-80004 Exact Fit for Unicel: C-9482 Exact Fit for Pleatco: PJ160-4 Exact Fit for Filbur: FC-1402 Guaranteed Perfect Fit - Extremely Durable - Wash & Reuse - Most Energy Efficient - Withstands High Pressures & Temperatures