The Duff Norton LT225-1-150 Linear Actuator is a 12 VDC electromechanical actuator designed to provide controlled linear movement with a 225 lb load capacity and 5.9-inch stroke. It converts electrical power into precise push-and-pull motion for positioning mechanical components. Commonly used in HVAC equipment such as dampers, louvers, air-handling systems, and ventilation units, it ... https://www.partshnc.com/lt225-1-150-duff-norton-linear-actuator-225lb-5-9-12vdc