Industrial-Grade Sealing: Includes the necessary gasket to ensure a pressure-tight seal on the float chamber head casting

Always replace with the exact OEM-specified temperature rating

What is the correct oil type for field top-offs

this universal-style thermostat cover fits most standard 2" x 3" vertical or horizontal controllers used in building management systems

supporting up to 7

Lochinvar & A.O. Smith 100109740 Gas Valve 321894-708 Industrial-Grade Sealing: Includes the necessaryThe 100109740 gas control valve is a critical direct replacement component designed for compatibility with high efficiency Lochinvar Knight and A. O. Smith condensing boilers. This precise negative pressure gas valve manages the fuel to air ratio, ensuring efficient combustion across varying modulation rates. Engineered for natural gas (NG) applications, this valve features a reliable solenoid actuator and a finely tuned internal regulator to maintain