Jandy CL-340 ALL AMERICAN Cartridge, Unicel C-7459, Pleatco PJAN85, Aladdin 18504, Filbur FC-0800, OEM A0554500, Replacement Swimming Pool Filter Cartridges 4 pack PLEASE DOUBLE CHECK ... DOES YOUR CARTRIDGE MATCH THESE MEASUREMENTS ??? LENGTH 27 inches ... OUTER DIAMETER 7 inches ... INNER DIAMETER 3 inches // 4 oz...4 x 85 square feet....128 pleats Replacement Cartridge fits: Jandy CL-340, OEM A0554500, Unicel C-7459, Pleatco PJAN85, Filbur FC-0800, Aladdin 18504 MADE IN THE USA!