This stainless steel thermowell is the same one used with many of the hood and stopper thermowells we sell, such as the 38620 and 48475. It is also a direct replacement for the thermowell used with the BrewBuilt CoolStix™ for Carboy fermenters.
1/4" inner diameter
5/16" outer diameter
Made from 304 stainless steel
Will not work with Johnson Temperature Controllers (16663 or 16670) because the probes are too large.