[guy48065]

I doubt I'm ever going to do a great deal of shock work so I was looking for something smaller. *I was looking into using a paintballer CO2 tank but the fittings aren't the same and I don't know if they can be adapted...or if I would have trouble getting such a setup filled with N2 later. *I just scored this little tank & regulator setup on eBay and it looks to be exactly what I was looking for. *It's made by "Rehvac" for nitrogen purging HVAC systems. *3000psi tank pressure, 300psi output gauge (I haven't filled it to see what the max regulated pressure is yet).
They don't have a website so you'll just have to Google order information. *Goes for about $220 new.

I made the filler manifold/gauge setup at work last week while I waited for delivery.