High Quality Material: The application of high grade ABS material and sturdy construction brings good durability for long term use. The product is very strong and well made with good spring tension.
Unidirectional Flow: Allowing for automatic switching and can prevent reverse movement of airflow through ventilation ducts when the ventilation system is shut down. This backflow damper allows only single-way flow as well as damping.
Return Airflow Dampers: Duct inserts fitted with return airflow dampers to ensure stable airflow without leakage, ensuring safety and reliability.
Application Scenarios: These unidirectional airflow duct inserts are perfectly suited for dryers, exhaust fans and other 6 flexible or plastic ducts, and are widely used in exhaust fan ducts, dryer ducts, range hoods, heating ducts, vents and other residential and industrial applications.
Easy to Install: Designed to be light weight and small in size, installation can be done quickly in minutes.