Part OEM: Bendix 065125, 20QE458Part: R-12H Type Relay ValveSupply Ports: (2) 1/2” P.T.Delivery Ports: (2) 1/2” P.T.Service Port: (1) 1/4” P.T.Opening Pressure: 5.5 PSIMounting Hole Diameter: 5/16"" on 1 1/2"" CenterNotes: Includes Universal Mounting Bracket