This air-operated damper is designed for tube fans with a size 315 configuration, providing precise control of airflow within ventilation systems. Constructed from durable materials, it ensures reliable and consistent operation while maintaining optimal system efficiency. The damper is easy to install and integrates seamlessly with existing ducting, making it suitable for both commercial and residential ventilation applications. It offers an effective solution for regulating airflow and supporting the long-term performance of ventilation systems.