Price for 1 Foot of S -Type thermocouple grade extension strained wire AWG22  Silicon /Silicon insulated for ambient themperature up to max 460 F . Specially ordered from Thermocouple manufacturer company and sealing left over. Very expensive and as service for thermal equipment's and dental lab and other  furnaces,is original part replacement.

Zirconia sintering furnaces (Nobertherm,Vita,Sintra,Zircon,Thermal star etc

Porcelain furnaces Dentsply, Ivoclar P300, P500, EP 3000, EP5000 ets

Custom furnaces

It can be used for R-Type thermocouple ,but R-Type extension wire can't be used for S-Type

This Wire is VERY RARE.