In-Line Duct Blower Wheel Type Backward-Inclined Drive Type Belt Drive Includes Drive Package No Assembly Unassembled Wheel Diameter 16 in Minimum Airflow 1 117 cfm Maximum Airflow 4 660 cfm Maximum Static Pressure 3 in wc Maximum Inlet Air Temperature 160 Degrees F Shaft Diameter 1 in Bearing Type Regreaseable Pillow Block Wheel Material Aluminum Housing Material Steel Inlet Diameter 11 5/8 in Outlet Diameter 11 3/4 in Outlet Duct Connection Height 22 3/4 in