In-Line Duct Blower, Wheel Type Backward-Inclined, Includes Drive Package Yes, Assembly Unassembled, Wheel Diameter 14 in, Airflow @ 0.000 in SP 4,060 cfm, Airflow @ 0.125 in SP 4,009 cfm, Airflow @ 0.250 in SP 3,958 cfm, Airflow @ 0.375 in SP 3,907...