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Damper flap DN 40 IDMAR APF040FAF3500E – round/rectangular duct fitting
Summary description:
IDMAR DN 40 damper flap (model APF040FAF3500E) is a compact duct fitting for controlling airflow in ventilation systems. Designed for installation in round or rectangular ducts, it provides adjustable airflow regulation and shut-off capability for HVAC applications. Suitable for use in residential and commercial ventilation, air handling, and duct balancing tasks.