In-Line Duct Blower Wheel Type Backward-Inclined Includes Drive Package Yes Assembly Unassembled Wheel Diameter 16 in Airflow @ 0.000 in SP 5 047 cfm Airflow @ 0.125 in SP 4 973 cfm Airflow @ 0.250 in SP 4 899 cfm Airflow @ 0.375 in SP 4 825 cfm Airflow @ 0.500 in SP 4 751 cfm Airflow @ 0.750 in SP 4 603 cfm Airflow @ 1.000 in SP 4 425 cfm Airflow @ 1.250 in SP 4 240 cfm Airflow @ 1.500 in SP 4 037 cfm Airflow @ 2.000 in SP 3 528 cfm Maximum Static Pressure 2 in wc