I shoot high pressure airguns. This is my compressor and carbon fiber air tank setup. At, maximum capacity, that tank holds over 4000psi! View attachment 138663
It holds 100 psi until it vents air to prevent it from exploding. The gauge is overkill for what its purpose is. It’s only a 3 gallon tank. I have a much bigger one in my garage, but it trips the breaker whenever I plug it in, lol.