Regenerative Blower Phase Single Output Power 1.5 hp Maximum Operating Pressure 65 in Hg Maximum Flow Rate 127 cfm Maximum Vacuum 60 in Hg Voltage 110/220 to 240V 115/208 to 230V Inlet Size 1 1/2 in Inlet Type NPT Inlet Gender Female Outlet Size 1 1/2 in Outlet Type NPT Outlet Gender Female Frequency 50 Hz 60 Hz Housing Material Aluminum