Robertshaw 1980-024 Thermocouple The Reznor 208290 Orifice is

The Reznor 208290 Orifice is a precision-engineered gas burner component designed specifically for unit heaters and furnace applications requiring a 3/16 orifice bore

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

When diagnosing a pilot light that won't stay lit

Can I clean this flame sensor instead of replacing it

Robertshaw 1980-024 Thermocouple The Reznor 208290 Orifice isThe 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