Originally Posted by Alpha

You can fill a 3500 PSI tank to 3000 psi.

Its interchangable..

Like this.. Say you have a barrel holder that fits 3 barrels . You can put 3 barrels in it. But then again, you can put two barrels in it and it will work fine.

Yuo can have a 3500 PSI scuba and when you get it filled, ask them to fill it to 3000 PSI.

Or you can just get a 4500 PSI nitro tank and you can fill it to 3500 every time.

You dont have to fill your HPA tank all the way every tiem. Am I makign sence?