Lennox 59M03 Flue Transition Replacement Kit with Drain Hose

The Lennox 59M03 Flue Transition Kit (flue transition replacement kit) is a replacement flue transition for Lennox gas furnaces. It was developed to standardize replacement parts and to improve water drainage to the cold end header box condensate trap.

Key Features:

• Replacement for flue transition kits 77K31, 67K45 and 18J20
• One kit standardizes the replacement flue transition across G26, G32 and 90UGF series furnaces
• Includes a flue transition assembly, a drain hose assembly and a 1/8" plastic NPT plug (attached)
• Exhaust adapter diameter: 1 7/8"
• Vent pipe coupling diameter: 2 7/16"
• Drain hose length: 73 3/4"

This kit helps the furnace vent combustion gases and drain condensate properly.