Poolzilla (1 Pack) Pool Filter Replacement Cartridge for PLF175A, Filbur FC-1294, Hayward C1750, CX1750RE, PA175, Unicel C-8417, PCCF-175, 25230-0175S, 817-0175P, PXC 175 (L x OD: 28 3/16” x 8 15/16”)