Tank specs explained please

[rjuch]

Im a little confused with regards to air tanks and the specs.
For example:
I have a 4500 psi,
Low Pressure,
68ci
Crossfire tank

68ci is the size of the tank right ? ci being cubic inches

4500 psi ? whats the diff between a 3000 and 4500 psi tank ? why would you choose 4500 over 3000 ?

Then how can you get a 4500 psi low pressure and high pressure tank ?

[Arawn]

68ci is the size of the tank right ? ci being cubic inches
4500 psi ? whats the diff between a 3000 and 4500 psi tank ? why would you choose 4500 over 3000 ?
Then how can you get a 4500 psi low pressure and high pressure tank ?

68ci is 68 cubic inches, the physical size of the tank and the volume of air held.

3000, 4500, and 5000 psi reflect the maximum safe pressure to which the tanks can be fill. The higher the pressure inside the tank, the more shots you will get when compared to lower rated tanks of the same volume (eg comparing 3K/68 to 4500/68 to 5K/68 the 5K will yield more shots).

Fixed output tanks come in two configurations of output pressure: high-pressure (generally 800-850psi) or low-pressure (generally 400-450psi).
Certain markers/inline regulators work best with one or the other, while others can work just as well with either.

Later,
B.