... PumpAutomatic Jet PumpAutomatic Water Pumps are consisted of electric pump, pressure tank, pressure controller, pressure gauge, connector, ... . The performance is related to the adapted electric pump, pressure tank capacity, and pressure controller rating, ... performance and long life.ConstructionElectric Pump: Range of Self-Priming Jet pump, Peripheral Pump, Centrifugal pump.Pressure Tank:2L,4L,8L, ...