A wide selection of Weldless Thermowells, MNPT Threaded Thermowells, 4" heat Shielded and Tri-Clamp Thermowells as well as the Straight-Walled Thermowells for the Brewing industry. A Thermowell enables you to aquire an accurated reading of your liquid while protecting the sensor that is taking the temperature. All our thermowells are made out of stainless steel, which is inert and heat resistant.