In-Line Duct Blower Wheel Type Backward-Inclined Includes Drive Package Yes Assembly Unassembled Wheel Diameter 20 in Airflow @ 0.000 in SP 3 569 cfm Airflow @ 0.125 in SP 3 315 cfm Airflow @ 0.250 in SP 3 018 cfm Airflow @ 0.375 in SP 2 670 cfm Airflow @ 0.500 in SP 2 042 cfm Maximum Inlet Air Temperature 160 Degrees F Shaft Diameter 1 in Bearing Type Regreasable Pillow Block