The 24v Automatic Round Damper (Normally Open) 5 Inch by METROPAC is engineered for efficient airflow control in HVAC systems. This damper operates on a 24V power supply and features a normally open design, allowing for automatic adjustment of airflow based on system demands. Constructed from high-quality materials, it ensures durability and long-lasting performance. With a 5-inch diameter, it fits seamlessly into standard ductwork, making installation straightforward. This damper complies with industry standards, providing reliable operation for both residential and commercial applications.