Weather grille made by anodised aluminium with a galvanised steel frame in the back with anodised aluminium gravity blades. The weather grille has fixed blades with 45ο angle. The aluminium gravity blades they have seals for noise reduction when they are closing. After the gravity blades there is a 6X6 mm galvanised wire mesh to prevent the entrance of small objects. For instalation in external walls. Suitable for air exhaust. The blades are parallel to the first mentioned dimension. Electrostatic paint in RAL color is possible.
Also is available in the following executions:
- ΒΝ-Β-PVC: With plastic gravity blades.