Dave, I think that the air line splice is what I was thinking of! So many of us run ARB lockers and the splice you gave to Cheeseman was a serious timesaver. He did have a complete air line but for fixing up a little dinky hole the splice was the cheese!
Just cut the line around the hole and put the two pieces back together with the splice. You were the only one of the group that had one and I'll bet that ARB has sold a few more since then. Good stuff and thanks for reminding me that I need to buy a splice too!!