Map Metal Louvre Air Vent Cover, for Openings 9" x (229 229mm), Suitable Venting Gas Appliances Internal External Wall, Silver

Free Air Space 10,200sq mm Designed to cover a triple brick aperture Easy surface fixing using 4 x No.6 gauge round head screws (not included) Suitable for interior and exterior use. Louvred Vent encourages the flow of air through a building