Neptech, Inc is a manufacturer of industrial heated products used in emissions testing under the Flexotherm brand. Neptech is also an authorized distributor of numerous major brands of fittings, valves, flowmeters and other related components. The Flexotherm brand specializes in heated hoses, heated sample lines, hot melt applications, continuous emission monitoring equipment, heated and insulating blankets, heated filter valves, heated sample probes, digital temperature controllers, 3,000 filter elements.