these gas pressure switches should be mounted horizontally with the 1/4" NPT inlet stem facing down

technicians should monitor differential pressure and perform replacements if the drop exceeds 10 psi to prevent system bypass or element collapse

and Miller units

the 042N7457 maintains operational integrity in extreme environments

Rheem-Ruud 62-19125-01 Burner Assembly 30067439-890 these gas pressure switches shouldThe Rheem Ruud 62 19125 01 is a precision engineered Natural Gas (NG) pilot burner assembly designed for high efficiency furnace ignition systems. This OEM replacement component features an integrated orifice calibrated for consistent flame rectification and reliable ignition sequences in Rheem and Ruud gas furnaces. As a critical safety and performance part, it ensures the pilot flame maintains the necessary millivolt output or ionization signal