In-Line Duct Blower Wheel Type Backward-Inclined Drive Type Belt Drive Includes Drive Package Yes Assembly Unassembled Wheel Diameter 11 1/2 in Airflow @ 0.000 in SP 1 669 cfm Airflow @ 0.125 in SP 1 623 cfm Airflow @ 0.250 in SP 1 577 cfm Airflow @ 0.375 in SP 1 530 cfm Airflow @ 0.500 in SP 1 484 cfm Airflow @ 0.750 in SP 1 396 cfm Airflow @ 1.000 in SP 1 262 cfm Airflow @ 1.250 in SP 1 119 cfm Maximum Static Pressure 1 1/4 in wc Maximum Inlet Air Temperature 160 Degrees F