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The 86K78 is the direct replacement for 86K7801 and 81F05
Flash Gas Detection: Provides immediate visual feedback of flash gas in the liquid line
Its durable brass body and precision-machined internal components prevent bypass leakage
and related high-output units
the 16-cubic-inch molded core is specifically engineered to handle the moisture and acid concerns associated with POE and PVE lubricants
Lennox 59837 Flame Sensor Rod Els PW 17895 The 86K78 is the directWhen you are troubleshooting a Lennox furnace that is short cycling or failing to stay lit, the Lennox 59837 Flame Sensor Rod is a critical diagnostic checkpoint. This OEM Lennox replacement part is engineered to provide precise flame rectification, sending a microamp signal to the ignition control board the moment the burner ignites. As a 6 inch flame sensing rod with a 3 16 inch diameter, it is built to withstand high temperature combustion
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