Pentair 25200-0150S Cartridge Element Replacement Sta-Rite PRC Aboveground Pool and Spa Filter Cartridge element replacement Fits Pentair Sta-Rite PRC aboveground cartridge pool and spa filter models PRC50, PRC75 50-square feet filtration area Measures 8-inch length by 20-1/4-inch height by 7-3/4-inch width