The Builder's Best GWM420 P-Tanium Galvanized Wide Mouth Dryer Vent Hood is a heavy duty metal dryer vent designed for optimal dryer ventilation. Constructed from galvanized steel, this 4 in. dryer hood vent features a durable, paintable dark gray matte finish that can be left unpainted or matched to your home's exterior. The wide mouth design provides a large open area to efficiently expel hot air and lint, helping your clothes dryer perform at its best. The included wall plate ensures a clean, professional installation on the interior, while the heavy back-draft flapper opens only when the dryer is in use, helping to keep birds and rodents out. This dryer wall vent hood is ideal for outdoor installation and is compatible with most standard dryer vent attachments. With its robust construction and easy wall mount design, this galvanized steel dryer vent hood is a reliable solution for long-lasting dryer exhaust performance. Dimensions: 6 in. H x 6 in. L x 15 in. W. Item weight: 1 lb. No batteries required.