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Ships within 48 hours · Estimated delivery Sep 16 - Sep 21
This kit is intended for the standard intake configuration of the 399 series models
the internal bimetal disc may have failed and requires a furnace limit switch replacement
Engineered with a fixed temperature setpoint ranging from 135-165F
As a lead free relief valve
Lennox 56W57 Panel Kit 321142-301 This kit is intended forThe Lennox 56W57 Vest Panel Corbol Kit is a critical OEM component designed to maintain the structural integrity and high performance standards of residential and commercial Lennox HVAC systems. Engineered as a direct fit for the vestibule panel, this kit facilitates precise airflow regulation and provides a secure housing for sensitive electronic furnace parts, including the integrated control board. Built to withstand the high thermal environments
