2 Pcs Round Stainless Steel Air Vent Grille 150mm

2 pieces 150mm round air vent grille, outer diameter: 190mm, height 48mm, compatible with pvc or aluminum pipes from 150 to 160mm. They allow a large air flow and can be used as air vents and exhaust vents, filtering the indoor air. 150 mm ventilation grille are made of 304 stainless steel, thickened, hardened and polished, high temperature resistant, resistant to corrosion, rust and weather, their surface is resistant to UV rays, frost and direct sunlight, suitable for use in humid environments. Round ventilation grille design with 45° inclined louvers, the inclined structure reduces noise in strong winds, removes smoke and odors, and blocks rain, snow and dust. It is equipped with a built-in thin stainless steel mosquito net that prevents insects and rodents from entering and prevents birds from nesting. The ventilation grille is equipped with pre-drilled mounting points. Simply insert it into the ventilation duct and attach it to the wall or ceiling with screws. It is compatible with various materials such as wood and concrete. The included rubber seal ensures a perfect seal. Air vent is suitable for kitchen, bathroom, garage, air conditioning systems, as well as various indoor and outdoor environments, including commercial ventilation systems, and even stables or basements, etc. Shutters and mesh provide double protection to ensure fresh air circulation, suitable for domestic and industrial environments