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    Roof Mount Damper View larger

    20" Opening Back Draft Damper

    BD21.75A

    New

    • Airmaster Fan Model BD21.75A
    • Backdraft Damper 21-3/4" Square
    • For 20" Square Opening
    • Wall or Roof Mounted
    • Gravity Close
    • EDP 32454  UPC 783429324543
    • Made In The USA

    $264.00

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    4 Items