The Master Flow HDWV4W is a durable 4-inch round wall vent designed for terminating bath fans, range hoods, or dryer exhausts on outside sidewalls. Constructed from robust 24-gauge galvanized steel, this heavy-duty vent features a powder-coated white finish to match most home trims. It includes an integrated gravity damper with a foam gasket for quiet operation and backdraft prevention. The flush-mount design minimizes potential damage while ensuring efficient airflow. Dimensions: 7.3125 in. Height x 6.5 in. Width x 7.5 in. Depth

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