this extension provides an additional 3

or visible heavy oxidation on the pilot hood that prevents proper flame contact with the sensor

Durable Sensing Element: The 1/2-inch diameter

Common Questions: Where is the limit switch located on a Lennox furnace

With a C0 radial internal clearance

Lennox 59M03 Flue Transition Kit Refrigerant this extension provides an additionalThe Lennox 59M03 Flue Transition Kit (mfg part LB 106783A) is a critical OEM component designed to manage combustion exhaust and condensate drainage in high efficiency 90% AFUE furnaces. As a direct replacement for Lennox 18J20, 18J2001, 59M0301, and Armstrong R41093 001, this kit standardizes the flue transition assembly for series including the G26, G32, and 90UGF models. It is specifically engineered to improve water drainage into the cold end