Home Improvement: The dryer vent cover is great for home use, especially suitable for use with dryer vent hoses. Perfect for bathroom, kitchen, office, garage, shed, camper, AC, range hood extractor. Ideal for room exhaust and ventilation needs Easy Installation: Easy indoor/outdoor installation. Available for wall mounting or ceiling mounting. Dryer vent is fixed in place by 4 screws. The included rubber gasket minimizes noise Premium Material: The vent covers for home are made of brushed 304 stainless steel material, are durable, anti-rust and corrosion resistant Great for Home Use: The flap in dryer vent cover is sealed from one side to prevent air entering the ventilation system. A foam stopper has been installed to the inside of the hood to keep this air vent open and close quietly. And the air vent protects against outdoor noise, birds, rats and rain Warm Prompt: Please note the diameter of this dryer vent cover outside is 4.6" and it can be fit in a 5" diameter pipe or hole easily. If you have any questions about our air vent cover, our professional customer service team is here to assist you