2 PACK Hayward CX750RE Hayward Star Clear C750 Unicel C-7676 Pleatco PA75 Filbur FC-1250 Swimming Pool Filter Cartridge LENGTH 29 3/8 inches ... OUTER DIAMETER 7 inches ... INNER DIAMETER 3 inches 75 square feet 110 pleats PLEASE CHECK YOUR CARTRIDGE MEASUREMENTS Replacement Cartridge fits: Hayward CX750RE, Hayward Star Clear C750, Unicel C-7676, Pleatco PA75, PCM75, Filbur FC-1250, Aladdin 17506 MADE IN THE USA!