Male Branch Tees are very similar to traditional Straight Pipe Tees where they are used to connect pipelines with another pipe of the same size at a right angle with the line. The difference is these Male Branch Tees feature a male thread on the branch allowing a female pipe thread to be connected at 90°

Street Elbows are a type of pipe fitting intended to join a pieces of pipe or another pipe fitting at a 90 degree angle. The difference between a Street Elbow and a regular elbow is the Street Elbow features male pipe thread on one end and female pipe thread on the other.