The Belimo AF24 US On-Off Spring Return Damper Actuator is a high-quality HVAC part designed for controlling the movement of dampers in heating, ventilation, and air conditioning systems. This 24V AC/DC actuator has a torque output of 133 in-lb and is made of durable metal material. It features a direct mount design for easy installation and comes with a manufacturer warranty of 5 years. With its corded electric power source and reliable performance, the Belimo AF24 is a top choice for HVAC professionals in need of efficient and dependable damper actuation solutions.