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Precise Calibration: The visible temperature dial is calibrated in both Fahrenheit and Celsius for accurate field adjustments through the cover
Combines the gas valve and venturi assembly into a single kit for precise air-gas mixing and simplified installation
Direct OEM Fit: Eliminates alignment issues common with third-party regulator repair parts
It is often used in systems with standing pilots where millivolt signal integrity is critical
Lennox 64J12 Collector Box Assembly 326058-757 Precise Calibration: The visible temperatureThe Lennox 64J12 Collector Box Assembly (Model LB 66579C) is the critical OEM replacement cold end collector box for legacy high efficiency furnaces. Designed as a direct swap for Lennox G26, 90UGF, and G32 series units, this genuine HVAC replacement part is identical to the 64J1201 catalog number. It functions by sealing the secondary heat exchanger's exit point to manage the transition of corrosive combustion condensate and exhaust gases toward the
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