This air-operated damper is designed for tube fans with a size 100 configuration, offering precise control of airflow in ventilation systems. Constructed from durable materials, it ensures smooth and reliable operation while helping to optimize system performance. The damper is easy to install and integrates seamlessly with existing ducting, making it suitable for both commercial and residential ventilation applications. It provides an effective solution for controlling airflow, maintaining efficiency, and supporting the long-term performance of ventilation systems.