cylinder volume

I bought a cylinder over the internet. It was advertised as a stell 90 3000 psi. When it arrived it is a Coyne 2400 psi steel cylinder. 7.25" diam and 24" height. I can't find it in my book on cylinders. Anybody familiar with this cylinder? What's the volume at 2400 psi? Any problems with them? Thanks :?:

Greetings
Post all of the numbers on the tank please.
Cheers
John

Looks like a steel 80cf. Here's more info.

http://www.nitroxdiver.com/Library/tanks.html