5 hp, Maximum Operating Pressure 63 in wc, Maximum Flow Rate 127 cfm, Maximum Vacuum 59 in wc, Voltage 190 to 220/380 to 415V AC, 208 to 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 4.Regenerative Blower, Phase Three, Output Power 1.8/1.0-3.