Its just the same as A regular Co2 cylinder..
You need a fire extingusher that is CO2 BASED, A co2 Extinguser
You would need a Adapter To change the valve on the extingusher. to a CGA320 Valve
Then you would also need a Co2 pressurized REgulator
and everything Just like a REgular Co2 setup..
So its would cost More if not The same. For just a regular Co2 setup
What Disposable set are you talking around.. Most co2 Kit you need a Co2 Cylinder ,Regulator,Bubble counter,Check Valve,DIsffusor
After you run out of co2 you Just refill it.. so there is no Disposable.. Its just the same as Fire extingusher