SESCO Systems Engineering & Sales Co. Inc. is a major supplier of a wide range of power transformer service and installation processing equipment. They offer mobile and stationary insulating oil purifiers, synthetic natural ester dielectric fluid conditioning systems, insulating oil regeneration systems, on-line transformer oil purification systems, vacuum line moisture cold traps, dry breathing air systems, and transformer evacuation systems. SESCO focuses on building long-term customer relationships by providing ongoing training, support, and service, including free factory training for every equipment sold and onsite training and service options. Their expertise lies in custom industrial lubrication, oil/fluid purification, fluid conditioning, and vacuum process equipment.