I have a ‘95 cruiser yacht and trying to locate a fuel line tee that has 1/4” straight thread openings by on top with rubber insert that connects to line going to injection and the bottom opening on tee is 3/8” straight thread with either for washer or o-ring then has 1/4” nominal thread on the bulls head of tee. I’m missing the o-ring I guess on the 3/8” side. Can’t seem to find the tee. Any suggestions