Detailed Product Description water pump Pressure switchDescription:lowest pressure:20PSIHighest prssure: 80PSIFemale&male:1/4(NPT.BSP)Pressure Setting:20-40PSI, 30-50PSI, 40-60PSICoverage:USE,CNR-Enclosed, double pole,single phase pressure operated switch to be used for the auto control of water pump Single phase:115V(AC) 1.5HP 20ASingle phase:230V(AC) 2.0HP 12ASingle phase:230V(AC) 3.0HP 17A