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 115 AC 1.5HP 20A Single Phase 230V AC 2.0HP 12A Single Phase 230V AC 3.0HP 17A