Axial Downblast Roof Supply/Exhaust Fan Mounting Location Roof Assembly Unassembled Blade Diameter 36 in Housing Material Steel Exhaust Airflow @ 0.000 in SP 18 313 cfm For High-Static Pressure Applications No High-Efficiency Motor No Maximum Static Pressure 1/2 in wc Motor Enclosure Open Dripproof Motor Horsepower 5 hp Nameplate Voltage 208/230/460V AC Number of Speeds 1 Phase 3 Maximum Inlet Air Temperature 104 Degrees F Number of Blades 6