Common Questions & Technical Advice What is the maximum duct width for a DST5 sampling tube

This cover integrates seamlessly with standard spray tubes and bearing sleeves

this furnace sealing component resists extreme temperature fluctuations and acidic condensate

Engineered for the rigors of commercial HVACR maintenance

finished aesthetic for low voltage thermostats

Lochinvar & A.O. Smith 100208088 Door Gasket Common Questions & Technical AdviceMaintain the integrity of your high efficiency heating systems with the Lochinvar & A. O. Smith 100208088 Door Gasket. Specifically engineered for KB AW (Knight Armor) boilers up to 501 models, this OEM replacement door gasket is essential for preventing energy loss and maintaining combustion efficiency. Fabricated from high grade rubber, this component replaces legacy part numbers GKT2455, GKT2455K, and 100146555, ensuring a precision seal against