In-Line Duct Blower Wheel Type Backward-Inclined Drive Type Belt Drive Includes Drive Package No Assembly Unassembled Wheel Diameter 42 1/2 in Minimum Airflow 11 363 cfm Maximum Airflow 27 490 cfm Maximum Static Pressure 3 in wc Maximum Inlet Air Temperature 160 Degrees F Shaft Diameter 1 1/4 in Bearing Type Regreaseable Pillow Block Wheel Material Aluminum Housing Material Steel Inlet Diameter 30 1/4 in Outlet Diameter 30 1/4 in Outlet Duct Connection Height 43 3/4 in