E-RAS-I: Extraction overpressure damper made of aluminium. Allows air to pass from the duct to the outside.

E-RAS-E: Extraction overpressure damper made of aluminium. Allows air to pass from the outside to the duct.

Fixing by springs or drills and, optionally, with latches.

Finish: Anodised aluminium or white lacquered. Consult for other finishes.

Applications: These dampers are used in ventilation ducts. Specially to prevent that cold winter air from outside could get into through the exhaust damper when exhaust fan is stopped.