Watts Regulator Company

Water Heater Relief Valve

Watts Regulator Company was founded in 1874 by Joseph Watts. In the 1900's Watts developed the combination temperature and pressure relief valve. These valves are still an integral part of plumbing systems today. Today, Watts is an international company that offers an extensive line of water flow products.

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Water Heater Relief Valve

Our most popular Temperature and Pressure Relief Valve. For use on water heaters up to 100,000 BTU's.

Model List Price Your Price Quantity
3/4 Inch
100XL34

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$10.70 $7.47
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Temperature and Pressure Relief Valves

1" Relief Valve Temperature and Pressure ASME Self Closing Relief Valve. Size - 1 in. M Inlet and 1 in. F Outlet, Thermostat Length 4 in., AGA Rating 500,000 BTU/HR.

Model List Price Your Price Quantity
1 Inch
40XL-4

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$243.56 $194.85
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Watts 100XL-8 (0066110) Water Heater T&P Relief Valve 3/4

100XL-8 - WATTS Water heater relief valve 3/4"MIP with 8" Long Thermostat Sensor. Watts Part # 0066110

Model List Price Your Price Quantity
8 Inch long Sensor
100XL-8

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$19.50 $15.60
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