The ventilation grilles are made of stainless steel and are suitable for both exhaust and air supply. Fixed slats prevent rain from entering. The built-in stainless steel grille effectively isolates debris and dust, keeps pests out of the room and avoids clogging the passage. For indoor or outdoor use, designed to cover openings and vents from walls or ceilings. Quick and easy assembly - use nails or screws to secure it into the pre-drilled screw holes. Wear gloves when installing. facility The edges of the stainless steel vents are sharp, please be careful Practical design: stainless steel air outlet with 45 oblique louvers, waterproof and rustproof; a built-in screen at the air outlet can prevent uninvited guests from entering the house. Easy Installation: It can be easily installed on the ceiling or on the wall to meet your needs; the louvered grille cover is installed on the exterior wall to maintain indoor air circulation, and installed on the air outlet in the hallway to save space. RELIABLE MATERIAL : Made of high quality stainless steel, this wall vent is sturdy, rustproof and has a long service life; Fine workmanship and simple style, suitable for different home decorations. Versatile use: the ventilation hoods can be used to exhaust indoor air and are ideal for bathroom vents, fans exhaust vents, air conditioning units, kitchen fans, gas vents and most other wall vents. Sold by Briday Store