Single Pole High Pressure Control, Close High Open Low, 50 Psi to 450 Psi, SPST, 60 Psi to 150 Psi Differential, 1/4" Male Flare Pressure Connector, 525 Psig Maximum Overpressure, For use with "All Range" R-12, R-22, R-134A, R-500 and R-502