Lochinvar & A.O. Smith 100208379 Pressure Switch 340155-7024 Precision Braze Connections: 7/8" x
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Lochinvar & A.O. Smith 100208379 Pressure Switch 340155 7024 Precision Braze Connections: 7 8" x Precision Braze Connections: 7 8" x 1 1 8" solder ports ensure leak free integration into standard line sets What are the symptoms of a failing flue temperature sensor