Three-way connectors are pipe fittings and pipe connection parts. Also known as three-way pipe fittings or three-way fittings, three-way joints, used where the main pipeline needs to branch off.

A three-way fitting is a type of industrial pipe fitting with three openings: one inlet and two outlets; or two inlets and one outlet. It comes in T and Y shapes, with both equal and unequal diameter openings, used at junctions where three pipes, either the same or different, converge. The primary function of a three-way fitting is to alter the direction of fluid flow.