For specialized setups

this SPDT switch (Single Pole Double Throw) provides a reliable proof-of-open signal when the valve reaches its full-open stroke

The Johnson Controls T22BBC-1 is functionally identical to the T22BBC-1C

When should I replace my Hankison grade 9 filter

Lochinvar & A.O. Smith 100093802 Door Assembly 322055-301 For specialized setupsThe Lochinvar & A. O. Smith 100093802 Door Assembly is a specialized natural gas manifold replacement engineered specifically for technical repair of Flammable Vapor Ignition Resistant (FVIR) burner systems. As a critical component in the combustion chamber assembly, this NG manifold door ensures a hermetic seal against the water heater tank, maintaining the integrity of the Flame Guard B system. The assembly features a resettable door switch (thermal