Standard assembly consists of the metal alloy protection tube with a general purpose (GP) connector head attached. The connector head has a 1/2 inch NPT outlet port. This unit is assembled with a #14 heavy gage ungrounded thermocouple with ceramic insulators and is connected to a two-wire therminal block in the connector head. This unit can be combined with a cold leg extension assembly if necessary. For special design requirements contact one of our engineers. Click the provided link for information regarding corrosion resistance and melting points of different materials.