Johnson Controls T-4000-2639 Cover Key Benefits Universal Series Compatibility:

Key Benefits Universal Series Compatibility: Engineered for seamless integration with RV110

Specifically engineered for HVAC high limit control

this grille provides the durability and precise fitment required by veteran contractors

SPST Electrical Design: Simplifies troubleshooting within the safety loop by providing a clear open/closed status

which is essential for preventing common calls regarding weak yellow flames or insufficient heat rise

Johnson Controls T-4000-2639 Cover Key Benefits Universal Series Compatibility:Johnson Controls T 4000 2639 Gold Plastic Cover, Horizontal, No Thermometer or Setpoint Window, Johnson Controls Labeled