An Electro-Fusion Fitting is used to join HDPE pipes. Two pipes of the same diameter are combined with fittings to carry the liquid. The mouths of the pipes to be joined must be smooth before welding. The fittings are used in the connection of HDPE pipes and other plastic pipes carrying liquids. Electrofusion is a simple method of joining PE pipes in circumstances where butt fusion is not practicable. The Electro-Fusion Fitting is very effective and made for commercial applications.