End Cap, Coupling, Bends

An end cap is a fitting used to close the end of a pipe. It is a sealed component, preventing the flow of water or other substances through that particular pipe end.

Coupling is a device used to connect two pipes of the same diameter. It can be threaded or unthreaded, and it provides a secure joint between the two pipes.

Bends, also known as elbows, are fittings used to change the direction of a pipe.