Spare/replacement Orton Type K Thermocouple for Autofire (MGO style - 6 in, 1/4 in diam, inconel sheath, std plug)

Spare thermocouples.  You might want to have one a spare thermocouple on hand in case you have a failure.   

TType K thermocouple, 6" inch long, inconel sheath, 1/4" inch diameter, Type K standard size thermocouple plug.  (Older style, for older controllers)