CO2 tank value?

What is a 20lb tank worth?
Have a chance to get 1 for $100...recently tested.

I'm pretty sure I paid more than that initially.

Check out the price on Amazon, that will allow you to compare.
Kurt Temple

The biggest thing you have to make sure of around here is that you can actually find somewhere that will fill a tank that big. The places that fill co2 around here will only fill your tank if you lease the tank from them because a lot of them fill by just trading your tank out.

Many welding supply places have a No Demurage deal.