1.Lowest Pressure:20PSI 2.Hightest Pressure:80PSI 3.Female:Z1/4" 4.Pressure Setting:20-40PSI,30-50PSI,40-60PSI. 5.Coverage:USR,CNR---enclosed,double pole,single phase pressure operated switch to be used for the auto-control of water pump. 6.Electric Ratings: Single Phase Single Phase Single Phase 115 AC 230V AC 230V AC 1.5HP 20A 2.0HP 12A 3.0HP 17A