If you look around you can find that clear tubing, it's available. Try a plastic pipe place or a good hardware store. All you have to do is cut the old tubing off the banjo fittings and put the new stuff on. I couldn't find any to use on my Mk1 TD so I got some 1/4" air brake hose and that worked fine, but it was black not clear so I couldn't see if there was air in the line. That was the only drawback.