Single Pressure Controls, Low Pressure, Switch Type SPST, Switch Action Opens On Low Pressure, Range (PSI) Close 400, Open 300, Close (PSI) 400, Open (PSI) 300, Differential Pressure (PSI) 100, Auto Reset, 1/4 in Female Flare Fitting Pressure Connection, Capillary Length (In. ) -, -, Direct Schrader Valve, 48 in Wire leads, Stripped Ends, NEMA 1, Fan Cycling for Head Pressure Control, Application Non-Corrosive Refrigerants, Includes Built-in Schraeder Depressor