In-Line Duct Blower Wheel Type Backward-Inclined Includes Drive Package Yes Assembly Unassembled Wheel Diameter 30 in Airflow @ 0.000 in SP 11 590 cfm Airflow @ 0.125 in SP 11 129 cfm Airflow @ 0.250 in SP 10 636 cfm Airflow @ 0.375 in SP 10 150 cfm Airflow @ 0.500 in SP 9 676 cfm Airflow @ 0.750 in SP 8 418 cfm Maximum Inlet Air Temperature 160 Degrees F Shaft Diameter 1 1/4 in Bearing Type Regreasable Pillow Block