Axial Upblast Roof Exhaust Fan Includes Motor Yes Includes Drive Package Yes Drive Type Belt Drive Base Diameter Not Applicable Base Length 38 3/4 in Base Width 38 3/4 in Base Shape Square Nameplate Voltage 115/208-230V AC Phase 1 Motor Horsepower 3/4 hp High-Efficiency Motor No For High-Static Pressure Applications No Motor Enclosure Totally Enclosed Fan Cooled Blade Diameter 30 in For Air Type Clean Air Maximum Static Pressure 1/4 in wc