Winters TBR Series Stainless Steel 304 Bi-Metal Threaded Thermowell, 2-1/2" Stem, 1/2" NPT Male x 1/2" Female NPT Standard stepped construction offering is complemented by an array of custom thermowells including: straight, tapered, sanitary and flanged configurations CRN registered RoHS compliant Made of stainless steel 304 1 Year warranty