The 4 Inch Round Damper PO/SR by Braeburn Systems is an essential component for regulating airflow in HVAC systems. This damper features a standard 4-inch size, making it ideal for various duct configurations. Constructed from high-quality materials, it ensures durability and effective performance. The pressure-operated design allows for precise airflow control, enhancing energy efficiency in heating and cooling applications. This damper complies with industry standards, ensuring reliability in both residential and commercial settings. Its lightweight design facilitates easy installation, making it a practical choice for any HVAC system.