Home Improvement: Please note the diameter of this dryer vent is 5.7" and it can be fit in a 6" diameter pipe or hole. Especially suitable for use with dryer vent hose. Perfect for bathrooms, kitchen, office, garages, sheds, campers, AC, RV, range hood extractors. Ideal for room exhaust and ventilation use Easy Installation: Easy indoor/outdoor installation. Available for wall mounting or ceiling mounting. Dryer vent is fixed in place by 4 included screws. The included rubber gasket minimizes noise High-Quality 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 Support Guarantee: We have a 24-month warranty. If you are not satisfied with the product after receiving the product, please contact us directly. We will reply within 4 hours