1201 Telescopic Underfloor Vent 3-5 Courses
Adjustable ventilator to provide ventilation beneath suspended ground floors up to 5 brick courses. With incorporated grille to prevent vermin entry.
The vertical height of the ventilator unit adjusts to suit between 3 and 5 brick courses (225mm-375mm) with a minimum cavity width of 50mm.
Product Information:
- 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
- Free area of 6500mm2 per unit when installed with 1201AB airbrick
- Equivalent area of 6170mm2 per unit when installed with 1201AB airbrick
- Special grille included to prevent entry of vermin
- Durable, robust and totally resistant to decay
Uses:
- To provide ventilation below suspended ground floors