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The WATTS 66087 100XL-100210 is a 3/4 IN brass self-closing temperature and pressure relief valve. It features a test lever and extension thermostat. Designed to automatically protect against over-pressure and over-temperature conditions in hot water systems. The valve is rated to a pressure of 100 psi and a temperature of 210 degree F.
The WATTS 66087 valve provides reliable temperature and pressure relief in hot water systems.
We pulled together the parts most installs need for this unit, plus a few add-ons worth a look. Check what you need — nothing here blocks checkout.
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