Air Dryers with Date Code After 9923

fitting 1/8" NPT manifold ports perfectly

Durable Construction: Resistant to high-temperature oxidation and chemical corrosion within the burner assembly

The 1053017 typically refers to the knob itself

Lochinvar & A.O. Smith 100208084 Gasket Air Dryers with Date CodeThe Lochinvar & A. O. Smith 100208084 Gasket is a high temperature sealing component engineered for industrial and residential hydronic systems. This authentic OEM part is the direct technical replacement for legacy part numbers GKT2513 and GKT2513K. Designed to maintain the pressure boundary within the heat exchanger and burner assembly, this element gasket ensures a gas tight seal, preventing dangerous combustion leaks and maintaining peak thermal