Shanghai QualityWell manufactures thermowells in Brass, Lead-Free Brass, 304 Stainless Steel and 316 Stainless Steel in lengths up to 48" that are suitable for bimetal dial thermometers. All thermowells are machined from solid bar stock and are available with out without lagging extensions (6" and longer only). Straight/stepped and Tapered designs are available. To obtain more details, please email your QualityWell sales representative.