The built-in wall vents by Renson ensure intensive ventilation and can aesthetically integrated into your façade. Manufactured from aluminium and available in all RAL colours or anodized. Simple and invisible mounting in the wall opening with wall anchors. The 450 vent with its extreme water-resistant features is ideally suited for applications where a high air passage must be combined with an excellent water-resistance, such as in data centres, power stations, IT applications...