The 5600 Series electric water thermostats are designed for replacementon domestic and commercial water heaters.The 5600 Series features thermostat (automatic cycling) and high limit(manual reset) in one small housing. Compact size (3-3/4" overall length)assures firm clamp to tank. Controls have snap action operation, fast andeasy wiring, and adjustable temperature ranges. See ordering chart forexact ranges available.