When I was planning out my wash bay, I really wanted to add a boom pole so I'd be able to just walk around whatever car I was washing and not drag a pressure washer hose all around. I ended up ordering a Mosmatic Boom Pole and mounting it in the center of my wash bay. It has become one of my favorite features of the OG wash bay.
This is similar to the boom pole I use in my wash bay but has a bend in it to clear lights or a second ceiling boom. You could mount two booms 34" apart and run one with air and the other with water. It comes in lengths ranging from 4'9" to 5'9".
These will be drop-shipped by Mosmatic. When you place your order, I will send you a separate invoice for the actual shipping cost.