Ring Compressor Phase Single Output Power 0.33 hp Maximum Operating Pressure 33.9 in wc Maximum Flow Rate 42 cfm Maximum Vacuum 33 in wc Voltage 115/230V AC Inlet Size 1 in Inlet Type NPT Inlet Gender Female Outlet Size 1 in Outlet Type NPT Outlet Gender Female Current Rating 3.6/1.8 A Frequency 60 Hz Housing Material Aluminum