Refrigeration Pressure Control, 4 Wire, 2 Circuit, Line M1 Close - High, Line M2 Open - High, 50 Psi to 500 Psi Range, Manual Reset Lockout, 1/4" Male Flare Connector, All Range Controls ( For Non Corrosive Refrigerants )

Low Pressure Controller, 50 Psi to 500 Psi Pressure Range, 60 Psi Differential

Dual Pressure Control, SPST Switch Action, Low Pressure Side: 20" Hg to 100 Psi, 7-50 Psi Differential, High Pressure Side: 100 to 500 Psi , 65 Psi Non Adjustable Differential, 1/4" External Flare Connector, Low Cut Out Limited Knob Adjustment

Dual Pressure Control, SPST Switch Action, Low Pressure Side: 12" Hg to 80 Psi, 5 to 35 Psi Differential, High Pressure Side: 100 to 500 Psi , 65 Psi Non Adjustable Differential, 1/4" External Flare Connector, Low Cut Out Limited Knob Adjustment

Low Pressure Controller, 20" Wc to 50 Psi Pressure Range, 100 to 425 Psi, 1/4" Flare Connection