Hey everyone, so I am gathering up the material I need to build a keezer. I ordered my regulator, distributor and quick disconnects. My question is, the barbs don't seem to be the same size. Everything is supposed to be 5/16". I assumed the quick disconnects were 1/4" and contacted the seller and they quickly shipped me replacements but they are the same size as the first pair. Could my distributor be the wrong size? And I can I tell for sure?