In-Line Duct Blower Wheel Type Backward-Inclined Includes Drive Package Yes Assembly Unassembled Wheel Diameter 30 in Airflow @ 0.000 in SP 9 190 cfm Airflow @ 0.125 in SP 8 598 cfm Airflow @ 0.250 in SP 7 982 cfm Airflow @ 0.375 in SP 7 332 cfm Airflow @ 0.500 in SP 6 450 cfm Maximum Inlet Air Temperature 160 Degrees F Shaft Diameter 1 1/4 in Bearing Type Regreasable Pillow Block