In-Line Duct Blower, Wheel Type Backward-Inclined, Drive Type Belt Drive, Includes Drive Package Yes, Assembly Unassembled, Wheel Diameter 11 in, Airflow @ 0.000 in SP 832 cfm, Airflow @ 0.125 in SP 799 cfm, Airflow @ 0.250 in SP 769 cfm, Airflow @...