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RB-122-E – Low Water Cut-Off

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Protection where you need it most

The RB-122E Low Water Cut-Off is specially designed to protect hot water boilers from the hazards of a low water condition. If the boiler is starved from water, it can have catastrophic results, from system failure to possible explosion and loss of life.

  • Patented Self-Cleaning Probe minimizes scale build-up and extends recommended cleaning interval to 5 years.
  • Brass threads provide a metal-to-metal seal that ensures a leak-free installation
  • Integrated wrench flats enable secure installation without damage to the housing
  • “Plug & Play” wiring harnesses are available for most residential gas-burning boilers
  • Push-to-Test Button Enables low water cut-off protection to be verified without draining any part of the system.
  • Automatic Reset resumes operation after a power outage when water is on probe.