Key Benefits Direct Drop-In Compatibility: Serves as the official replacement for legacy models 0431305 and 0431311

Designed as a direct-fit OEM replacement flame rollout switch

You can program up to 20 ON/OFF operations that can be distributed across a 24-hour period or repeated throughout a 7-day schedule

With clear low and high-pressure scale plates and accessible laser-welded bellows

which is standard for residential gas lines

Lochinvar & A.O. Smith 100108941 Valve 322838-754 Key Benefits Direct Drop-In Compatibility:The Lochinvar & A. O. Smith 100108941 Valve is a natural gas control engineered for precision fuel regulation in high efficiency commercial and residential heating systems. Designed for 3 4" x 3 4" FPT connections, this step opening gas valve ensures controlled ignition and stable combustion by operating with a 0. 7" WC step pressure before transitioning to a 4" WC full manifold pressure. As a critical HVAC replacement part, it is frequently utilized