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Specified for 60Hz applications
Look for a mushroomed or bulged top
Durable Construction: Manufactured from high-grade metal to withstand the thermal stress of continuous pilot operation in liquid propane systems
As a veteran technician
Lennox 21L98 Ignitor Electrode Specified for 60Hz applicationsThe Lennox 21L98 Ignitor Electrode is a critical furnace component designed for precise direct spark ignition (DSI) sequences in high efficiency residential and commercial units. This genuine OEM part, which is cross referenced and identical to Lennox 21L9801, ensures the correct spark gap and flame rectification required for consistent burner light off. Unlike generic alternatives, the 21L98 is engineered with high grade ceramic insulation to prevent
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