OEM Blower, Wheel Type Forward-Curved, Drive Type Direct Drive, Includes Drive Package Yes, Assembly Assembled, Wheel Diameter 3 3/4 in, Airflow @ 0.000 in SP 70 cfm, Airflow @ 0.100 in SP 65 cfm, Airflow @ 0.400 in SP 50 cfm, Airflow @ 0.500 in SP 45 cfm