Duraflo 6013BL Roof Dryer Vent Flap with ATT Collar, Black
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<b>[Product Information]</b><br>
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<li>Excellent UV performance</li>
<li>Leak-proof, seamless outer shell</li>
<li>Unique chatter less flapper</li>
<li>Attractive low profile styling</li>
<li>Flexible flange will not crack on installation, even in extreme cold</li>
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