Product main features

• External louvre for air intake and exhaust to prevent rain, snow, leaf and animal ingress
• Rainwater ingress penetration efficiency of approx. 95%
• Operation based on special front edge blade profile and side grooves 
• Grille and steel mesh section detachable from outside 
• Depth of the blades 65 mm, distance 50 mm and free opening 50%
• Polyester-painted galvanised steel as standard finish