I have a quick question. I purchased this tank used from a seller here on pbnation. I read the label on the tank (50 cu in 4500 psi) from picture 1. But then on the regulator on the tank (picture 2) that it says 3000psi. I just want to know if i can fill this with 4500 or 3000 psi.
Thank you for any help you can give.