There are Stainless Steel Union offered by us in a variety of sizes and connection types. Tube fittings designed to connect one tube to another are called unions: If a tube union joins together different tube sizes rather than tubes of the same size, it is called a reducing union. Union is a type of fitting equipment designed in such a way to unite two pipes which can be detached without causing any deformation to the pipes. The unions consist of two pipes connected together via a third piece. The offered Stainless Steel Union is made for use in various industries.