... 5HP,single phase 220V,intelligent constant pressure control,LCD display Pump controller: special for small size:0.5HP~1.5HP, ... 220V,intelligent constant pressure control,LCD display Booster Pump controller:special for small pump size:0.5HP~1.5HP,single phase ... on the motor directly.Easy operation with pressure modification function..Automatic control constant pressure water supply.Set the pressure on ...