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The standard R400-3/8 is set for 3-6" w
a gauge with a lower range is recommended to prevent bottoming out the needle
The Safgard 650SV is designed for hot water boilers
Replacing a brittle or failed HVAC transition gasket during routine maintenance prevents 1013080-specific vibration noise and protects the system from premature component stress
Lochinvar & A.O. Smith 100108279 Valve 321894-706 The standard R400-3/8 is setAs a direct replacement for 100108278, the Lochinvar & A. O. Smith 100108279 Valve is a critical safety component designed for commercial and residential water heating systems. This 3 4" temperature and pressure relief valve (T&P) is factory calibrated to discharge at a 150 PSI pressure setting or a 210F temperature threshold, preventing catastrophic tank failure. Engineered with a durable brass body and a thermo bonded coated sensing element, it
