Ring Compressor, Phase Three, Output Power 1.4 hp, Maximum Operating Pressure 59.8 in wc, Maximum Flow Rate 89 cfm, Maximum Vacuum 53 in wc, Voltage 230/460V AC, Inlet Size 1 1/2 in, Inlet Type NPT, Inlet Gender Female, Outlet Size 1 1/2 in, Outlet Type NPT, Outlet Gender Female, Current Rating 3..8/1.8 A, Frequency 60 Hz, Housing Material Aluminum