150mm Non-Return Valve Ventilation Grille with Non-Return Valve, Stainless Steel Weatherproof Grille with Movable Louvers, Stainless Steel Ventilation Grille with

Upgraded Materials: Our stainless steel weatherproof grilles with movable louvers are made of premium stainless steel with a polished surface, making them durable, rust-resistant, and corrosion-resistant. The stainless steel vent grille with movable louvers is characterized by its high durability and superior quality, making it perfect for kitchens and bathrooms. 【Ventilation Grille】The 150mm backdraft damper is installed on the exterior wall of the air extraction system. When the fan stops, the louvers close automatically, preventing the entry of cold air and the penetration of dirt, insects, and other objects. This ensures that the ventilation grilles and weatherproof grilles operate efficiently, without producing noise or disrupting your life. Robust and Durable: The stainless steel louvered grille is resistant to external influences such as snow, rain, frost, and sun. The high-quality materials and durability of this ventilation grille ensure its stable construction and prevent deformation. The unique design of the fixed grille blades effectively prevents water penetration, making it suitable for both indoor and outdoor use. Easy installation: Simply insert the appropriately sized ventilation grille into the flexible tube, secure it to the wall where it will be installed using four screws, and the installation can be completed in minutes. The ventilation grille is designed to easily adapt to various surfaces, guaranteeing a secure and long-lasting fit. Versatile Use: This ventilation grille features a modern design and surfaces that make it ideal for any type of room, whether mounted on a wall or ceiling. The vent grille with a backdraft damper can be installed in ductwork or as direct openings to the outside or to other rooms. Ideal for exhaust ducts, pipes, tumble dryers, bathrooms, kitchens, garages, cooker hoods, and ventilation systems.