Anti-rust and Waterproof: Hoopever air vent covers are made of durable aluminum alloy, with matte black surface, beautiful appearance, corrosion resistance and waterproof, durable and not easily deformed, and can be used for a long time. Easy to install: best size: 600mm × 50mm, ventilation grill is easy to install and clean, black air vent is fixed with screws, tighten the air vent grille cover to complete the installation. After a period of use, rectangular ventilation grill can be removed for cleaning. Universal: The exhaust grille is especially suitable for indoor installation. If the air inside your cabinet is not circulating and have breeding bacteria, you need to use air vent grille for ventilation of closed spaces. Ceiling vent covers are intended for toilets, kitchens, heaters, bathrooms and laboratories. The black square aluminum alloy black vent cover is suitable for connecting with various materials, from which doors, etc. to maintain ventilation and air permeability, so that it is clean. Applicable scope: The internal vent cover mesh can be used in built-in refrigerators, aquariums, washing machines, fridge, dryers, glass containers, microwave ovens, computer desks, etc., to maintain ventilation and air permeability. Multiple grille vents make the air more fluid, not easy to block, and can effectively prevent foreign objects from entering, and ventilate and prevent moisture. Ideal choice for ventilation in enclosed spaces, widely used in kitchens, bathrooms, bedrooms and offices, suitable for wardrobes, shoe cabinets, sink cabinets, kitchen stoves, display cabinets, computer cabinets, bathroom doors, internal and external mounting // Designed To cover wall or ceiling openings and ducting vents. Maintain ventilation and create a good living environment., Manufacturer: Hoopever