This genuine Maxitrol replacement part ensures the lever-acting design of the 325 series maintains its accuracy from full flow down to pilot flow

Superior Sealing: High-grade EPDM O-rings resist mineral build-up and thermal degradation in hot water and 2-pipe low-pressure steam systems

For contractors performing furnace troubleshooting or HVAC system maintenance

and high-ambient heat—factors that typically lead to premature failure in standard electrolytic units

potentially causing damage to the unit before the switch triggers

Lochinvar & A.O. Smith 100208443 Valve This genuine Maxitrol replacement partAs a seasoned technician, you know that maintaining system integrity starts with high quality safety components. The Lochinvar & A. O. Smith 100208443 Valve is a 3 4" x 1" 150# T&P relief valve designed specifically for commercial and residential water heating applications. Built to handle a 95,000 BTU capacity, this valve provides critical overpressure and over temperature protection. It features a robust bronze body and a reliable thermal element