Always use genuine Reznor components

preventing mechanical damage and noise

ensuring the compressor is protected from critical over-pressure conditions

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Key Benefits Direct OEM Replacement: Fully compatible with Lochinvar and A

Watts 0274596 Valve R-407A Always use genuine Reznor componentsThe Watts 0274596 is a 3 4 inch Model 174A 70 ASME rated pressure relief valve designed specifically for protection against excessive pressure in water heating and storage applications. Engineered for closed loop systems, this hot water boiler relief valve features a high capacity BTU hr rating to ensure rapid pressure discharge when system limits are exceeded. The valve is factory set at 70 PSI, providing a reliable safety threshold for high pressure