Hex Nipples
Click image to enlarge
Fasteners Etc. offers a line of pipe fittings including stainless-steel hex pipe nipples and reducing hex pipe nipples. The hex pipe nipples are short lengths of pipe with threaded ends utilized to connect fittings. Those that are reducing style offer two different MPT sizes on each side to accommodate a gradual transition in the piping system. Available in 304 and 316 stainless-steel for premium corrosion resistance to chemicals and acids to perform in the harshes environments. If your application requires durability and corrosion resistance in a controlled environment, you might consider a more budget friendly option available with brass hex pipe nipples.