From the market leading MAP brand of vents, this metal louvred vent is ideal for providing air flow through a building, helping to reduce problems caused by stale air, dampness, smells and condensation. It is suitable for interior or exterior use. This vent is not suitable for venting gas appliances. Available in different sizes.
The 9x3" - Vent Size: standard single brick aperture. (3400sq mm of free air space)
The 9x6" - Vent Size: standard double brick aperture. (6800sq mm of free air space)
The 9x9" - Vent Size: standard triple brick aperture. (10200sq mm of free air space)