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The Series 100XL operates behind the scenes to keep you safe and your hot water heater running smoothly. This temperature and pressure relief valve monitors temperature and pressure build up in your hot water tank, protecting against issues that could lead to damage or dangerous situations. With a bronze body construction and special coating on the thermostat, the 100XL detects when temperature or pressure rise beyond safe levels and automatically releases excess water so pressure and temperature return to normal, ensuring your hot water supply continues operating at peak efficiency for years to come.
Watts T and P Thermostatic Valve features a unique thermostat with special thermo-bonded coating
Thermostat element - 4" (10 cm), shank - 1-3/16" (3 cm)
Required safety device on all water heaters
Brass body construction
Prevents water heater from blowing up
Includes test lever and stainless-steel spring
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