Centrifugal Downblast Roof Exhaust Fan Drive Type Direct Drive Assembly Assembled Wheel Diameter 7 1/2 in Base Diameter Not Applicable Base Length 15 1/2 in Base Width 15 1/2 in Base Shape Square Nameplate Voltage 115V AC Phase 1 Motor Horsepower 3/25 hp Exhaust Airflow @ 0.000 in SP 227 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 and Wall