Ring Compressor Phase Single Output Power 2.5 hp Maximum Operating Pressure 79.7 in wc Maximum Flow Rate 154 cfm Maximum Vacuum 70 in wc Voltage 200-230V 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 11.0 A Frequency 60 Hz Housing Material Aluminum