View Full Version : scuba tanks??

12-13-2007, 01:56 PM
i am new to the idea of scuba tanks. i believe that they are fairly large HPA tanks that are used a certain number of times to fill a normal HPA tank, but they only have a certain number of fills before they are empty, am i correct. if so about how many tanks can i fill for what price, say i have a 72cu 3k tank. or what about a 68cu 45k tank