Ohhhh ok. Thanks.CO2 is much lower pressure than the typical PCP. Here is what Google’s AI has to say about it:
CO2 tanks are rated to a much lower pressure than compressed air tanks. If you fill a CO2 tank with HPA to the CO2 tank's limit of 850psi, you won't even have 1 hopper's worth of propellant. If you attempt to fill a C02 tank to the pressure 3000psi or 4500 psi HPA tanks are filled you will likely be severely injured.