Blower, Wheel Type Forward-Curved, Drive Type Direct Drive, Includes Drive Package Yes, Assembly Unassembled, Wheel Diameter 10 5/8 in, Airflow @ 0.000 in SP 1,510 cfm, Airflow @ 0.125 in SP 1,450 cfm, Airflow @ 0.250 in SP 1,400 cfm, Airflow @ 0.375...