Adjustable ventilator to provide ventilation beneath suspended ground floors between 5-7 brick courses. With incorporated grille to prevent vermin entry. The vertical height of the ventilator unit adjusts to suit between 5 and 7 brick courses (375mm-525mm) with a minimum cavity width of 50mm. We have an extensive range of easy-to-fit horizontal and vertical extension accessories, that do not restrict airflow, to adapt the unit for various applications.
• Telescopic and adjustable for a step of 5, 6 or 7 brick courses
• Horizontal and vertical extension accessories available
• Free area of 8000mm2 per unit when installed without airbrick
• Free area of 6500mm2 per unit when installed with 1201AB airbrick