Centrifugal Downblast Roof Exhaust Fan Drive Type Belt Drive Assembly Assembled Wheel Diameter 30 1/2 in Base Diameter Not Applicable Base Length 42 in Base Width 42 in Base Shape Square Nameplate Voltage 115/208-230V AC Phase 1 Motor Horsepower 1 1/2 hp Exhaust Airflow @ 0.000 in SP 9 719 cfm For High-Static Pressure Applications No High-Efficiency Motor No For Air Type Clean Air Includes Drive Package Yes Includes Motor Yes Mounting Location Roof