Along with elbows, carbon steel pipe fittings also consist of tees, which link 3 sections of pipe, producing joints for fluid flow. Equal tees are utilized when the attaching branches are of the same size, while reducing tees are used when the branch pipe is of a smaller diameter. A234 http://pandora.nla.gov.au/external.html?link=https://hfittings.com/butt-weld-fittings/