Yes I do remember them, those semi stiff pieces of plastic tubing about
3/32" diameter that you stuck (not very firmly) into a hole in the can's spray cap.They got misplaced very easily too. I used to tape length of plastic soda straw with it's bottom end folded closed to the side of the WD-40 can to have a spot to keep it in.
Now, what did "LRT" mean? I'm guessing the "LR" stood for "long reach", but did the "T" stand for "tube"?
Jeff