Propane hose outlet/port
I am planning how my propane system will be configured at the back of my truck. I want to get the propane hose inside to the appliances and if I create a port hole on the vertical surface of the rear, near the tanks, I would like it to be relatively small, and obviously keep out the elements. I can see what I would like in my head, but for the life of me I can't find examples online because I don't know the term for this type of fixture.
Any help appreciated.