What is the purpose of a shower head elbow and how does it contribute to the overall functionality of a shower system?

A shower head elbow is a Plumbing fitting that connects the shower arm to the shower head. It allows for the shower head to be positioned at the desired angle and height for optimal water flow and coverage. The elbow contributes to the overall functionality of a shower system by providing stability and flexibility in adjusting the shower head position, enhancing the showering experience for the user.