In-Line Duct Blower Wheel Type Backward-Inclined Drive Type Belt Drive Includes Drive Package No Assembly Unassembled Wheel Diameter 18 in Minimum Airflow 1 564 cfm Maximum Airflow 6 747 cfm Maximum Static Pressure 2 1/2 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 13 1/4 in Outlet Diameter 12 1/2 in Outlet Duct Connection Height 23 3/4 in