AMTROL works to keep its customers from sweating the small stuff. The manufacturer specializes in pre-pressurized diaphragm expansion tanks and water flow products used in HVAC and hydronic systems. The company's lineup includes well water accumulators, hot-water expansion controls, auto gas cylinders, and refrigerant and chemical cylinders. Its portfolio also boasts shock and surge suppressors and indirect-fired water heaters, as well as fire-control sprinkler systems for residential, commercial, and industrial applications. AMTROL markets its products under such brands as EXTROL, Diatrol, Therm-X-Trol, Water Worker, and Well-X-Trol. In 2017 the company was acquired by Worthington Industries for $283 million.
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Larry T. GuillemetteChairman, President, and CEO
Richard HarrisPresident, Harris and Associates
Michael H. LecoursTreasurer