Pentair Clean & Clear Predator 150 ALL AMERICAN Replacement Filter Cartridge, Unicel C-9415, Pleatco PAP150, Filbur FC-0687, R173216, Pentair 590543, Swimming Pool Filter Cartridge PLEASE DOUBLE CHECK ... DOES YOUR CARTRIDGE MATCH THESE MEASUREMENTS ??? LENGTH: 31 1/8 inches ... OUTER DIAMETER: 10 1/16 inches ... INNER DIAMETER: 6 inches tolerance plus or minus 1/16" ...150 square feet ... 175 pleats Replacement Cartridge fits: Pentair Clean & Clear Predator 150, R173216, 590543 Unicel C-9415, Pleatco PAP150, Filbur FC-0687, All American 9008 MADE IN THE USA! ... When you make a purchase, you're supporting a small business with the entrepreneurial spirit that made America great!