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22.75 In.H-W 4.5 In.L Aluminum Backdraft Dampr, Damper Application Backdraft, For Nominal Duct Diameter Not Applicable, Frame Material Aluminum, Number of Panels 1, Maximum Air Velocity 2250 fpm, Overall Height 22 3/4 in, Rough Opening Diameter 20 1/2 in, Rough Opening Shape Square, Fits Fan Diameter 20 in, For Duct Shape Square, Free Area 2.5 sq ft, Overall Width 22 3/4 in, Frame Material Thickness 0.1 in, Overall Length 4 1/2 in, Connection Type Not Applicable, Frame Depth 1 5/8 in
Blower, Wheel Type Forward-Curved, Drive Type Direct Drive, Includes Drive Package Yes, Assembly Unassembled, Wheel Diameter 10 5/8 in, Airflow @ 1.500 in SP 1,848 cfm, Airflow @ 2.000 in SP 1,610 cfm, Airflow @ 2.500 in SP 1,288 cfm, Airflow @ 3.000 in SP Not Applicable, Airflow @ 3.500 in SP Not Applicable, Airflow @ 4.000 in SP Not Applicable, Airflow @ 4.500 in SP Not Applicable, Airflow @ 5.000 in SP Not Applicable, Airflow @ 6.000 in SP Not Applicable, Airflow @ 7.000 in SP Not Applicable
Blower, Wheel Type Forward-Curved, Drive Type Direct Drive, Includes Drive Package Yes, Assembly Unassembled, Wheel Diameter 6 1/4 in, Airflow @ 0.000 in SP 595 cfm, Airflow @ 0.125 in SP 560 cfm, Airflow @ 0.250 in SP 515 cfm, Airflow @ 0.375 in SP 470 cfm, Airflow @ 0.500 in SP 420 cfm, Airflow @ 0.750 in SP 300 cfm, Airflow @ 1.000 in SP Not Applicable, Airflow @ 1.250 in SP Not Applicable, Airflow @ 1.500 in SP Not Applicable, Airflow @ 2.000 in SP Not Applicable
Blower, Wheel Type Forward-Curved, Drive Type Direct Drive, Includes Drive Package Yes, Assembly Unassembled, Wheel Diameter 9 in, Airflow @ 0.000 in SP 1,005 cfm, Airflow @ 0.125 in SP 968 cfm, Airflow @ 0.250 in SP 930 cfm, Airflow @ 0.375 in SP 890 cfm, Airflow @ 0.500 in SP 850 cfm, Airflow @ 0.750 in SP 773 cfm, Airflow @ 1.000 in SP 680 cfm, Airflow @ 1.250 in SP 480 cfm, Airflow @ 1.500 in SP Not Applicable, Airflow @ 2.000 in SP Not Applicable, Airflow @ 2.500 in SP Not Applicable