By incorporating extra metal at the mounting surfaces

providing reliable actuation even during minor voltage fluctuations

ensuring a secure leak-free joint in tight equipment enclosures

Check your model's parts manual to verify the specific HVAC valve replacement needed

Key Benefits Universal Compatibility: Optimized for use with HCFC

Lennox 21L98 Ignitor Electrode By incorporating extra metal atThe 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