400 mm end cap with rubber seal NAL, ETS NORD
400 mm round mechanical regulating damper KROS, ETS NORD
KROS 400 is a high-quality mechanical air flow control and shut-off valve for round ducts. KROS 400 round regulating damper are particularly useful for controlling airflow, adjusting ventilation systems, and closing air ducts during maintenance work. Constructed from corrosion-resistant galvanized steel, suitable for 400mm round ducts. Easy to install and adjust, allowing precise control of airflow volume.