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. Suitable for Use with Gas Appliances. Suitable for fresh air ventilation and warm air systems. Will comply with Building Regulation Part F if installed in accordance with the manufacturer's instructions and by a competent person. Louvred Vent encourages the flow of air through a building Overall vent size: 260mm x 165mm. Screw hole distance: 248mm x 152mm