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The Watts 0274496 3/4 Inch 174A Relief Valve is essential for hot water heating systems and domestic water supply boilers. It is designed to guard against excessive pressure buildup, ensuring safety in various heating equipment. This relief valve features a bronze body, NPT threaded female connections, a stainless steel spring, and a test lever.
This Watts 174A Relief Valve is ideal for protecting hot water heating systems from high pressure. Its non-metallic disc-to-metal seating prevents sediment build-up, ensuring reliability and safety.
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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