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    For Louvers That Fit Opening Width
    For Louvers That
    Fit Opening Width
    12 3/4"
    14"
    14 3/4"
    18"
    20 3/4"
    22"
    26 3/4"
    27"
    32 3/4"
    33"
    38 3/4"
    39"
    44 3/4"
    50 3/4"
    56 3/4"
    62 3/4"
    Mounting Flange Width
    Mounting Flange Width
    1 1/8"
    1 1/4"
    For Louvers That Fit Opening Height
    For Louvers That
    Fit Opening Height
    12 3/4"
    14"
    14 3/4"
    18"
    20 3/4"
    22"
    26 3/4"
    27"
    32 3/4"
    33"
    38 3/4"
    39"
    44 3/4"
    50 3/4"
    56 3/4"
    62 3/4"
    DFARS (Defense Acquisition Regulations Supplement)
    DFARS (Defense Acquisition
    Regulations Supplement)
    click to learn more about
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