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Engineering-grade construction makes this 24V gas valve a robust field solution
This board is the authorized factory replacement for part numbers PCBFM131S and PCBFM103
this Williams replacement part is engineered to meet OEM specifications for exact fit and performance
The motor uses standard multi-tap leads
York S1-700078 Sight Glass 320735-701 Engineering-grade construction makes this 24VThe York S1 700078 Sight Glass (Model SA 13) is a critical diagnostic component designed for precision refrigerant flow monitoring in commercial and residential HVAC systems. Engineered for high pressure environments, this SA 13 sightglass provides a high visibility interface to inspect for bubbles, flash gas, and moisture contamination within the liquid line. Featuring a robust fiberglass body and a clear view window, it allows technicians to verify
