Help A Very unique problem

I have a duel channel tubing that has been punctured and cannot be sealed.
This is what I was hoping you could help me fix this. I am looking for a
part that is about the size length and diameter of your thumb that would
fit watertight into a 3/8 polyurethane tube. On the other end, the part
should have two nubs offset 90 degrees from in the inlet that would allow
me to connect two very skinny tubes. All connections should be made
watertight and withstand some backpressure. I would rather not use metal if
possible. I have seen this similar setup in the vacuum system in one of my
automobiles but I am having trouble identifying the part.

Any ideas please post or better yet send to



Thanks for you time

T C Lane