High Pressure Blower Wheel Type Radial Wheel Diameter 16 1/2 in Airflow @ 1.000 in SP 2 014 cfm Airflow @ 2.000 in SP 2 387 cfm Airflow @ 3.000 in SP 2 331 cfm Airflow @ 4.000 in SP 2 280 cfm Airflow @ 5.000 in SP 2 232 cfm Airflow @ 6.000 in SP 2 187 cfm Airflow @ 7.000 in SP 2 144 cfm Airflow @ 8.000 in SP 2 102 cfm Airflow @ 9.000 in SP 2 059 cfm Airflow @ 11.00 in SP 1 970 cfm