The 21L99 Lennox Flame Sensor OEM 21L99 ensures reliable flame detection for your heating system, enhancing safety and efficiency. Designed for seamless fit, it keeps your Lennox furnace running smoothly season after season.
The 21L99 Lennox Flame Sensor OEM 21L99 ensures reliable flame detection for your heating system, enhancing safety and efficiency. Designed for seamless fit, it keeps your Lennox furnace running smoothly season after season.