Map Metal Louvre Air Vent Cover, for Openings 9 x 6" (229 152mm), Suitable Venting Gas Appliances Ventilation Internal External Wall, Silver

Free Air Space 6800sq mm Designed to cover a double 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