Utility Exhaust Blower, Wheel Type Backward-Inclined, Drive Type Belt Drive, Includes Drive Package No, Assembly Unassembled, Wheel Diameter 16 1/2 in, Minimum Airflow 1,600 cfm, Maximum Airflow 5,500 cfm, Maximum Static Pressure 3 in wc, Maximum Inlet Air Temperature 300 Degrees F, Shaft Diameter 1 3/16 in, Sound Level 83 dbA @ 5 ft, Wheel Material Aluminum, Housing Material Steel, Wheel Width 6 1/2 in, Number of Inlets 1, Inlet Diameter 17 3/8 in, Outlet Shape Rectangular