Ok just got this thing. I was just about to throw in the towel and send it back. here's the deal.
YOU MUST Flow the air with the triangle pointer on the bottom of one of the ports. Here's the tricky part its obviously going the wrong direction for my air flow setup.
I swapped the inlet and outlet ports now the gauge is on the wrong side. Remove the hex set screw on the back it has a dap of silicon don't get rid of it just take out put on the other side now the gauge port can be swapped front to back.
RECAP is out of the box it was a right to left flow. Not gonna work for me. swap it over to left to right flow. swap the hex set screw front to back and everything is where its supposed to be.
If you go the wrong direction it leaks air and won't regulate. I've had others in the past that did this and replaced them.
It shouldn't leak air and works like its supposed to be. Ditch the regulators with clear bowls add a desiccant up or down stream if needed better yet a air dryer is the best, but the clear bowls on others will crack or leak air over long periods of time.
price is excellent and seems to be of great quality.