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Non-return flap 100 mm blauberg
20,32 €16,26 € -
Non-return flap 315 mm blauberg
41,24 €32,99 €
Anti-Return Damper, made of aluminium. It is made with a spring that closes two small plates when the air does not flow in the correct direction. The double damper prevents the air from flowing back when the extractor stops, and also has the function of preventing pests from entering through the extraction tube.