Product Description High Quality: Our exterior wall ventilation grilles are made of 304 stainless steel, which has better hardness and anti-rust properties than 201 stainless steel, is not easy to deform and is rust-proof. Thoughtful Design: There is a mesh filter in the middle part to protect the house from insects. A half-wrapped designer hat prevents rain and wind from entering the house. Easy to use: Barbed design, the barbs can clamp the hose upside down, making the hose not easy to fall off and easy to install. WIDE APPLICATIONS: Ideal for all dryer vents, bathroom vents and range hoods, air conditioners, kitchen fans and vents, all wall vents, heat transfer and ventilation systems, electric and gas laundry rooms, kitchen hoods and various industrial applications. The perfect replacement for old or rusty drain plugs in your home. The main advantage 304 stainless steel: The exhaust cap is made of thick 304 stainless steel (150mm), not easy to deform and rustproof. Smooth: The