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    Backdraft damper, horizontal mount, Model BD-90, 8 In Sq, No Flange, Performance up to 1,500 ft/min

    Greenheck Product # BD90-8X8
    Price
    $53.45

    The BD-90 is a horizontal mount backdraft damper designed to allow vertical airflow up and prevent reverse airflow. The dampers are opened by air pressure differential and closed by gravity. The damper features a flangeless, galvanized steel frame and aluminum blades.

    • AMCA certified for Air Leakage and Air Performance
    • Width and height furnished approximately 0.125 in. under size
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