... and close the pumps automatically, to achieve unmanned automatic pressure controller for water pump detail information : Product Specifications:Available for water and pressure control systemsTurn on ... female: Z1/4, Z3/8 inchesRated voltage: 110 to 220VMaximum pressure: 3 barPressure settings: 1.0 to 1.7bar, 1.1 to ... : 115V 1.5hp, 20A/230V, 2.5hp 12A /230V, 3.0hp, 17A Pressure Controller for water pump