Baleen Filters 100 sq. ft. Pool Filter Replaces Unicel C-9410, Pleatco PAP100-4, Filbur FC-0686-Pool and Spa Filter Cartridges Model Media Area 100 sq ft, 10 1/16" OD, Open Hole: 6" Top, Open Hole: 6" Bottom, 23 5/8" Long, AK-8003 Baleen Filters are made from Durable and Efficient USA Made Reemay Fabric - Washable Fabric Extends Your Filter's Life 100 sq. ft. 9000 Series Cartridge for Clean & Clear, PacFab, Predator Filter, replacement of Unicel C-9410, Pleatco PAP100-4 Baleen Filters Top: Open Hole: 6" Bottom: Open Hole: 6" Perfect Fit - Extremely Durable - Wash & Reuse - Most Energy Efficient - Withstands High Pressures & Temperatures