Downblast Exhauster, Drive Type Belt Drive, Assembly Assembled, Wheel Diameter 16 1/2 in, Base Diameter Not Applicable, Base Length 24 3/4 in, Base Width 24 3/4 in, Base Shape Square, Nameplate Voltage 230/460V AC, Phase 3, Motor Horsepower 1 1/2 hp, Exhaust Airflow @ 0.000 in SP 3,100 cfm, For High-Static Pressure Applications Yes, High-Efficiency Motor No, For Air Type Clean Air, Includes Drive Package Yes, Includes Motor Yes, Mounting Location Roof and Wall