Manthorpe Aluminium Hit & Miss Vent 9" x 6" / 9" x 9" AV626 ,AV629 - select size

An aluminium hit & miss grille plate for covering over and providing ventilation through a 9" x 6" or 9" x 9" opening. Hit & miss cover can be used to reduce or completely close off airflow. The vent is designed to fully cover over a treble brick aperture. Fix by using four No. 6 gauge round head screws of appropriate length. Suitable for both interior/exterior fresh air ventilation and warm air systems. To clean, wash in soapy water. This product is not suitable to ventilate gas appliances. Features For openings up to 9" x 6" (229 x 152mm) AV626 / 9" x 9" (229 x 229mm) AV629 Free ventilation area: 8,500mm² (AV626) / 12,800mm² (AV629) Adjustable faceplate for airflow control Easy surface mounting Suitable for interior & exterior use Size 260 x 165 x 6mm (AV626) 260 x 240 x 6mm (AV629)