Just bought a motorized vacuum pump, and gauge set. I am wondering, how to connect the fish pump style hose to the gauge set? I have a mason jar that I will use as a vacuum chamber and am going to use the suction Cup to fasten it to the jar. I’ve tried a hardware store to find a Barb fitting but the threads on all the Barb fittings are different than those on the gauge set. Anyone with some insight would be a great help, I’m heading to another hardware store Tommorow to look again.