Improved Materials: Our stainless steel weather protection grilles with movable slats are made of high-quality stainless steel with a polished surface and are durable, rust-resistant, and corrosion-resistant. The stainless steel ventilation grille with movable slats is characterized by high durability and high quality and is perfect for kitchens and bathrooms. Ventilation Grille: The 150 mm check valve is located on the outer wall of the exhaust system. When the fan stops, the slats close automatically, preventing the entry of cold air and the penetration of dirt, insects, and other objects. Ensure that the ventilation grille works efficiently, without creating noise and disrupting your life. Sturdy and Durable: The stainless steel slatted grille is resistant to external influences such as snow, rain, frost, and sun. The strength and high-quality materials ensure the ventilation grille's stable construction and protect it from deformation. The unique fixed grille design can