A very generous person gave me a great deal on a regulator and a bubble counter.While I decide the diffuser I want,I am also deciding on the CO2 tank.I have been thinking of going paintball,but I was told I need an adapter.Do I have to order one of those $20.00 ones or would something from Home Depot work?If it wont would someone explain why not?I just dont see the sense in spending twenty for something I could get cheaper,if that makes sense.

Thanks in advance!