Hayward EC40C92SFT Perflex Extended-Cycle DE Filter System with Base/Hoses/Micro Timer Perflex EC40AC DE filter system comes with power flow pump It cleans pools fast, removing particles as small as two microns the first time through Includes 1-1/2-inch drain plug, base, hose kit and micro timer Its patented Flex-Tube design gives longer cycles between cleaning because of the same D.E. filter powder is used over and over This filter system has 1-horsepower flow rate