Axial Downblast Roof Supply Fan Mounting Location Roof Assembly Unassembled Blade Diameter 30 in Housing Material Steel Exhaust Airflow @ 0.000 in SP 7 138 cfm For High-Static Pressure Applications No High-Efficiency Motor No Maximum Static Pressure 1/4 in wc Motor Enclosure Open Dripproof Motor Horsepower 1/2 hp Nameplate Voltage 115/208-230V AC Number of Speeds 1 Phase 1 Maximum Inlet Air Temperature 104 Degrees F Number of Blades 6 Supply Airflow @ 0.000 in SP 7 138 cfm