Unit designed to work on a tunnel ventilation systems. Made of expanded polyurethane, it offers a perfect insulation to both heat and cold. Perfectly sealed and equipped with a curved inner flap and stainless steel side arms. This unit can be controlled through a special connection kit.
Strong points:
■ High mechanical resistance
■ High quality polyurethane
■ High Insulation Value
■ Automatic return opening spring
■ Curved inner flap to guide air direction
■ Wide range of dimensions