ZOTEE 5 sq.ft. General Foam Plastics Pool Replacement Filter Cartridge 2 PackSpecs Product Type: Pool Replacement Filter Cartridge OEM : 5 sq. ft. General Foam Plastics Compatibility: Unicel C 4306 Filbur FC 3742 Top Cap: 1 3 4" Bottom Cap: 1 3 4" Outer Diameter: 4 1 4" Length: 8" Surface Area: 5 sq ft Quantity: Single Filter Cartridge Details ZT 144 Pool Filter Cartridge: 5 sq. ft., 4 1 4" Diameter, 8" Long ZOTEE Pool Filter Cartridges are designed with Unique trilobal fiber structure and Highly uniform media which delivers