Regenerative Blower Inlet Size 1-1/2 in (F)NPT Outlet Size 1-1/2 in (F)NPT 1.4 HP Voltage 230/460 3 Phase 3.8/1.8 Full Load Amps Max Pressure 58 in WC Max Flow Rate 89 CFM Max Vacuum 50 in WC Max Ambient Temp 104 Degrees F Housing Material Aluminum/Iron Motor Enclosure Totally Enclosed Fan-Cooled Thermal Protection Pilot Duty Overall Length 12-1/16 In. Overall Height 12 In. Overall Depth 11-13/16 In. Standards CSA CE UR RoHS