Baleen Filters Pool Filter Replaces Unicel C-7660, Pleatco PFAB60-4, Filbur FC-1930 Media Area 60 sq ft, 7 7/8" OD, Open Hole: 3 1/16" Top, Open Hole: 3 1/16" Bottom, 14" Long, AK-6083 1 Year Warranty - Baleen Filters are made from Durable and Efficient USA Made Reemay Fabric - Washable Fabric Extends Your Filter's Life 60 sq. ft. 7000 Series Cartridge for Endless, Pentair - PacFab Filter, replacement of Unicel C-7660, Pleatco PFAB60-4 Baleen Filters Top: Open Hole: 3 1/16" Bottom: Open Hole: 3 1/16" Guaranteed Perfect Fit - Extremely Durable - Wash & Reuse - Most Energy Efficient - Withstands High Pressures & Temperatures