Fiber Glass Systems 3″ Green Thread HP16 Elbow Fittings Approx. 50
Description from manufactures website:
An elbow fitting is a type of fitting intended to join a piece of pipe and another fitting at an angle.
In addition to the flex point for your arm, elbows are industrial fittings that change the direction of piping.The connections allow you to reroute regularly threaded pipes to turn corners or fit in limited space without the expense of buying a pipe bender.