Tough, robust and effective airbrick ventilator presenting an equivalent area of 6170mm2 (free area of 6500mm²) per unit in buff.
Unique stepped front grille greatly reduces the entry of wind and driven rain.
To be used in conjunction with:
- Timloc Telescopic Underfloor Vent to provide ventilation to below-suspended ground floors
- Timloc cavity sleeves for ventilation through external walls to a building interior.