I just got new equipment and a 48?/3000 came with the package which they told me would get about 400 shots. And given tank prices, I have the opportunity to get the 70/4500 for only 100 new... Trying to figure out if it is worth the investment or not.
I would get it and worry about the pack that can hold it later. Just make sure the tank is compatible with your gun. If your gun requires a low pressure tank make sure the tank your getting is low pressure. If its high then you know what kind of tank you need.