i need to know what kind of fill station to get for a scuba to i can tap in at my uncles firehall and use there scuba tanks. Also they have these bottles that look like a oversized CA tank, but they are used for there air supply. it's called a firemans airpack. they are rated at 4500psi and 180ci. i was wondering if there is an adapter for the fireman airpack so i could fill my CA bottle with it. I could allways were it on my back and use it as a direct air sourc but it would be kinda heavy.