Size: 1/8"-4" threaded and weld type 

A nipple outlet is an outlet with a tail type.It is used to connect a pipe to a hose or other fitting. It typically has a threaded end that allows it to be screwed onto a pipe or other fittings, and a weld end that allows to be welded to the main pipe. Nipple outlets are commonly used in irrigation systems, water supply lines, and other applications where a secure connection between a pipe and a hose is needed.