The 3-way elbow is a unique CPVC plastic
contraption used to divert the flow of water in three different
directions, all at a perpendicular 90-degree angle to each other.
Typically elbow fittings are used to connect pipes of the same diameter
that can be connected through threaded ends or through adhesive socket
welding in sanitary pipe fittings. The three-way elbow can be used to
connect pipes of varying circumferences and pressure bearing capacities.