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Haliburton Lumber

Duraflo 6011BL Exhaust Vent, 10.94 in OAL, 12.92 in OAW, 117 sq-in Net Free Ventilating Area, Polypropylene, Black

Installed on a sloped, shingled roof to exhaust bathroom fans by the means of a roof penetration. Includes internal damper to reduce backdraft and an exterior grill to prevent the infiltration and nesting of birds, vermin and insects.

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