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Key Benefits OEM compatibility for York
0 Cv rating supports high-volume requirements in 3/4" piping systems
the Device ID follows the 277XXX format based on the selected address but can be modified via network commands
providing the exact static pressure required to close the furnace pressure switch
Lennox 73M72 Extension Kit 323080-701 Key Benefits OEM compatibility forThe Lennox 73M72 is a critical Vertical Vent Extension Kit specifically engineered to modify the venting system on compatible high efficiency furnaces and SG 150 units. When standard flue runs aren't enough to clear building obstructions or meet local code for roof terminations, this OEM replacement part provides the necessary height for proper exhaust gas routing. For a tech in the field, this kit is essential for maintaining the correct 1 4 inch per