Robertshaw 1980-024 Thermocouple this L165-40 limit control prevents

this L165-40 limit control prevents heat exchanger damage and hazardous operating conditions by monitoring for airflow restrictions or blower motor failure

Can I clean this flame sensor instead of replacing it

The JB K1-1 uses 3/4" NPS (National Pipe Straight) threads

this black control knob provides the necessary leverage and indexing for accurate mixing valve calibration in both residential and commercial hydronic systems

Robertshaw 1980-024 Thermocouple this L165-40 limit control preventsThe Robertshaw 1980 024 is a professional grade 24 inch Snap Fit thermocouple engineered for high performance heat sensing in gas furnaces, water heaters, and commercial boilers. As a universal thermocouple replacement, this component is designed to integrate seamlessly into most pilot burners without the need for additional adapters. The 1980 series features a robust construction utilizing a combination of copper and nickel alloys to ensure maximum