Review on Yeswelder Argon CO2 Welding Flow Meter Gas Regulator Gauge for Mig Tig Welding by James Wickware

Looks good but when I tried to install it on my CO2/Argon tank it didn't fit. The specification for the CGA 580 fitting is 0.960 for the outside diameter of the male thread. As you can see in the picture the one I got was .970. Not having much time and not wanting to return it I had to spend some time with my micrometer and sandpaper to get the fit and no doubt a little out of shape. I got it to work but it shouldn't and that makes me doubt the rest of the controller as well.