Axial Downblast Roof Exhaust Fan, Mounting Location Roof, Assembly Assembled, Blade Diameter 20 in, Housing Material Aluminum, Exhaust Airflow @ 0.000 in SP 5, 943 cfm, For High-Static Pressure Applications No, High-Efficiency Motor No, Maximum Static Pressure 1 in wc, Motor Enclosure Totally Enclosed Air Over, Motor Horsepower 1 1/2 hp, Nameplate Voltage 208-230/460V AC, Number of Speeds 1, Phase 3, Maximum Inlet Air Temperature 120 Degrees F, Number of Blades 4. This item has been restricted from sale in the following state (s): []