Pool Filter 2-Pack, Replaces Unicel C-8409, Pleatco PA90, Filbur FC-1292 Filter Cartridge for Swimming Pool and Spa Replacement Filter Cartridge for Unicel C-8409-2, Filbur FC-1292 and Pleatco PA90 Replaces Pleatco PA90 Replaces Filbur FC-1292