Brass Aluminium Louvre Air Vent Cover 9" x 3" (229mm x 76mm). This brass anodised aluminium louvre air vent is suitable for interior and exterior use with easy surface mounting and a low profile design. It meets building regulations and is made of brass aluminium with screw-on installation. The rich gold colour adds elegance to any space. This vent cover is made in the United Kingdom and is suitable for any room in your home.