In-Line Duct Blower Wheel Type Backward-Inclined Includes Drive Package Yes Assembly Unassembled Wheel Diameter 18 in Airflow @ 0.000 in SP 3 712 cfm Airflow @ 0.125 in SP 3 546 cfm Airflow @ 0.250 in SP 3 366 cfm Airflow @ 0.375 in SP 3 167 cfm Airflow @ 0.500 in SP 2 928 cfm Airflow @ 0.750 in SP 2 175 cfm Maximum Static Pressure 3/4 in wc Maximum Inlet Air Temperature 160 Degrees F Shaft Diameter 1 in Bearing Type Regreasable Pillow Block