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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?
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