C5501575XES Easy-Clear Filter System with 1-Horsepower Power Flo LX PumpProduct ReviewP Click on the link for more reviewsPEasy-Lok lid access design provides simple entry to service the cartridge elementPBuilt-in check valve prevents accidental loss of pool water when cartridge is being removed for cleaningPUnique safety-catch prevents over tightening of the cover and unwanted entry into the filterPCartridge element is uniquely designed of high quality reinforced polyester and a molded center core for easy cleaning, high flows and long life.