MANCHESTER TANK, a division of McWane, Inc., is the premier manufacturer of pressure vessels for the containment of propane, compressed air, and chemicals in the United States, Canada, Australia and Chile. The company's broad product line includes Department of Transportation (DOT) approved steel and aluminum cylinders ranging in size from 5 to 420 pounds and American Society of Mechanical Engineers (ASME) approved steel tanks ranging in size from 1 to 30,000 gallons.