In-Line Duct Blower Wheel Type Backward-Inclined Includes Drive Package Yes Assembly Unassembled Wheel Diameter 16 in Airflow @ 0.000 in SP 4 585 cfm Airflow @ 0.125 in SP 4 503 cfm Airflow @ 0.250 in SP 4 422 cfm Airflow @ 0.375 in SP 4 341 cfm Airflow @ 0.500 in SP 4 259 cfm Airflow @ 0.750 in SP 4 079 cfm Airflow @ 1.000 in SP 3 880 cfm Airflow @ 1.250 in SP 3 656 cfm Airflow @ 1.500 in SP 3 389 cfm Airflow @ 2.000 in SP 2 566 cfm Maximum Static Pressure 2 in wc