The D-4073-4 Damper Actuator by Johnson Controls is a high-quality product designed for HVAC service technicians. This actuator is capable of controlling dampers weighing between 8 and 13 pounds, making it ideal for use in a variety of HVAC systems. With its precise positioning capabilities, this damper actuator ensures accurate control over airflow, helping to maintain optimal temperature and air quality within any given space. Its durable construction and reliable performance make it an excellent choice for any HVAC professional looking for a dependable damper actuator solution.