Hayward CX880XRE, NEW ECO-LINE CARTRIDGE, Aladdin 20601, Super Star Clear/Swim Clear C4025, Unicel C7488, Pleatco PA106, Filbur FC1226 Replacement Swimming Pool Filter Cartridges PACK of 4 LENGTH 25 1/2 inches ... OUTER DIAMETER 7 inches ... INNER DIAMETER 3 inches 4 x 106 square feet 176 pleats PLEASE DOUBLE CHECK YOUR CARTRIDGE MEASUREMENTS MADE IN THE USA. This 4 pack removes 424.....16 oz plastic bottles from the landfill Replacement Cartridge fits: Hayward CX880RE, Super Star Clear / Swim Clear C4025, Unicel C-7488, Pleatco PA106, Filbur FC-1226, Aladdin 20601