The Duff Norton LT100-1-100 Linear Actuator is an electromechanical device designed to provide controlled linear movement in compatible HVAC and mechanical equipment. It converts rotary motor motion into precise linear travel, allowing connected components such as dampers, valves, or louvers to be positioned accurately. Used in air-handling systems, ventilation equipment, and other HV... https://www.partshnc.com/lt100-1-100-duff-norton-linear-actuator-112lb-4-12vdc