Blower Wheel Type Forward-Curved Drive Type Belt Drive Includes Drive Package No Assembly Unassembled Wheel Diameter 19 3/4 in Minimum Airflow 2 050 cfm Maximum Airflow 18 850 cfm Maximum Static Pressure 2 in wc Maximum Inlet Air Temperature 150 Degrees F Shaft Diameter 1 3/8 in Bearing Type Pillow Block Ball Sound Level Not Rated Wheel Material Steel Housing Material Steel Wheel Width 20 in Number of Inlets 2 Inlet Diameter 16 1/2 in Outlet Shape Rectangular