No. Not only are there no O2 tanks for paintballs, but trying to fill any tank with pure oxygen at that pressure would carry a SEVERE RISK OF EXPLOSION AND DEATH.
Call them and ask!
Yes they are the same.
yes they are refillable
No, you must have it refilled at a paintball field or pro-shop. You cannot refill paintball tanks from low pressure Soda dispenser C02 tanks.
Ride-iculous - 2013 Paintball Army Tanks 1-12 was released on: USA: September 2013
Yes. All tanks and remotes have a standard ASA thread.
At a paintball or sporting goods store.
yes, to any gun made in the last 15 years
Yes, all brand paintball guns use a tank or other source of pressure.
drain the tank, throw it away
Yes, any nitrogen tank is refillable.