The Stainless Steel Thermowell Series 303 / 316 Grade manufactured by Labfacility comes in different sizes and it is designed to utilize with industrial style temperature probes to deliver security. The sheathing from corrosive media and to facilitate probe replacement without disturbing the process. The standard process connections is 1/2 inch BSPP and the 1/8 inch BSPP compression fitting to fit into the diameter of the probe and it is needed to connect sensor to thermopocket. Lastly, the stem length measures from 50 mm to 550 mm and the standard size is 6.0 mm / 1/4 inch.