Pentair PNEC0060OE1160 EasyClean Aboveground Cartridge Pool and Spa D.E. Filter System, 1 HP EasyClean aboveground cartridge D.E. filter Removable cartridge style D.E. element for quick, convenient cleaning Automatically regenerates D.E. media during off cycle and start-up Filter lock ring allows for quick and easy servicing Measures 24-1/2-inch length by 35-inch height by 25-1/4-inch width