Achieve optimal ventilation beneath suspended ground floors, accommodating up to 5 brick courses, with our adjustable ventilator. This unit features an incorporated grille to effectively prevent vermin entry. The vertical height of the ventilator can be easily adjusted to fit within the range of 3 to 5 brick courses (225mm-375mm), requiring a minimum cavity width of 50mm.
Features and Benefits:
- Telescopic and adjustable for a step of 3, 4 or 5 brick courses
- Horizontal and vertical extension accessories available
- Free area of 8000mm2 per unit when installed without 1201AB airbrick