Best thing to do is figure out who made your parts -- and ask THEM --- otherwise it's just wild guessing....
You'll find plumbing very frustrating until you figure out what all these different fittings look like === hot rod parts can be ordered with many different "custom" thread types and sizes... one guy might need his cooler with "O" ring fittings another guy might want NPT to use a barbed hose... that's why nobody can just tell you "IT'S THIS".
|