Description
Restore reliable ignition with the authentic Lennox 79J21 ignitor electrode, designed to both spark and sense flame in HVAC systems. Commonly cross‑referenced as 79J2101 or PSE‑L19, this OEM electrode ensures safe startup and smooth combustion in compatible Lennox packaged units and RTUs.
Specifications:
- Insulator: glazed L-5 steatite
- Plate: copper plated
- Male terminal: nickel plated steel











