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Furnace Replacement Parts
> Furnace Flame Sensors
- Flame Sensor
- SUPCO® flame sensors can replace many of the popular sensors in today's furnaces that use hot surface or direct spark ignition systems.
Features/Benefits
Alumina ceramic insulator
For Hot Surface Ignition (HSI) systems
Kanthal flame rod material can withstand 1800°F
Mount on multiple burners, or adjacent to igniter
See Downloads section for additional X-refs
Use with spark ignition and flame sensing
Termination: 1/4" Quick Disconnect
Base Length: 1-1/2"
Sensor Length: 2-3/4"
Overall Length: 4-7/8"
Replaces part numbers:
Replacement Part:31L71
Part Description:
Manufacturer :Lennox®
Replacement Part:LB-74940A
Part Description:
Manufacturer :Lennox®
Replacement Part:52W29
Part Description:
Manufacturer :Lennox®
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