The HART & COOLEY OBD 12 10 Mill Damper is an essential component for controlling airflow in HVAC systems. Measuring 12 inches by 10 inches, this mill damper is constructed from high-quality materials for durability and reliability. It is designed to provide precise airflow regulation, making it ideal for both residential and commercial applications. The damper features a robust design that meets industry standards, ensuring effective performance in various heating and cooling systems. Its easy installation process allows for seamless integration into existing ductwork.