... self-energy Product summary1.Piston Remote Control Ball Float Valve,which has many functions,is operated ... stops supplying water,which is controlled by ball float guidevalve.4.And when water level drops, ... than 24 inchesProduct summary1.Piston Remote Control Ball Float Valve,which has many functions,is operated ... supplying water,which is controlled by ball float guidevalve.4.And when water level drops, ...