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Avoid areas with direct sunlight
this kit is the designated modern replacement for legacy Armstrong hardware kits 810120-244 and 810120-202
Two-way valves like the B219B should be installed with the disc upstream
As a veteran-grade valve repair kit
Lochinvar & A.O. Smith 100233597 Gasket 340793-762 Avoid areas with direct sunlightThe Lochinvar & A. O. Smith 100233597 Gasket is a critical high temperature seal designed specifically for the flue exhaust system on heavy duty commercial boilers and water heaters. Engineered to withstand intense thermal cycling, this EPDM flue gasket ensures a gas tight seal between the heat exchanger and the venting assembly, preventing hazardous combustion byproducts from escaping into the mechanical room. This component is a direct replacement
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