Ring Compressor Phase Three Output Power 0.5 hp Maximum Operating Pressure 49.8 in wc Maximum Flow Rate 56 cfm Maximum Vacuum 45 in wc Voltage 200-230/460V AC Inlet Size 1 1/4 in Inlet Type NPT Inlet Gender Female Outlet Size 1 1/4 in Outlet Type NPT Outlet Gender Female Current Rating 1.5-1.7/0.75-0.85 A Frequency 60 Hz Housing Material Aluminum