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The Maxitrol R400S-3/8-CSA is a high-performance gas pressure regulator engineered for precision fuel control in commercial and industrial HVACR applications
and Efficiency+ boiler models
They are electrically and physically identical
Built with a compact footprint to fit tight furnace vestibules
Lennox 70L54 Pilot Assembly 30067439-890 The Maxitrol R400S-3/8-CSA is aThe Lennox 70L54 Natural Gas Pilot Assembly is a critical OEM replacement component engineered for precision ignition in residential heating systems. This furnace pilot burner is a direct replacement for the Lennox 70L5401 and Honeywell Q3450 Q3400A series, ensuring seamless HVAC part compatibility across a wide range of equipment. It is primarily utilized in Lennox Aire Flo AF80 and AF90 series gas furnaces, where maintaining a stable flame for the
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