20" Downdraft Barometric Damper - 19.75" x 19.75" DD1975

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5.00 LBS
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Product Overview

19.75" Barometric Damper automatically opens when cooler is on and closes off the duct when cooler is turned off. High grade aluminum frame and vanes with nylon hinges and weatherstripping insulation for thermal seal. Fits 20" cooler roof jack.


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  • 5
    Works Great

    Posted by Taylor on May 26th 2019

    Well made of aluminum. Slid snugly into my roof jack. Simple to install.