R50A ALUMINUM ROOF LOUVER BROWN GAF
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<p>The perfect utility vent for kitchen duct outlets, bathroom fan exhausts, and attic exhaust ventilation.</p> <ul><li>Easy to install, pre-drilled nail holes with extra wide flashing area</li><br /><li>Large capacity of full 50 sq-in of net-free ventilating area (NFA) per vent</li></ul>