Nitrogen or CO2?

[blownninjected]

I'm looking to make a re-filling station for my trailer. But using a air shifter, air launcher parachute, and throttle stop. What is better Nitrogen or CO2 for this? and also Aluminum or Steel bottle? buy or rent? advantages and dis-advantages?

[taonindo]

nitrogen is more consistate pressure wise... co2 pressure will change with temps a lot more so than nitrogen, thats all i know for sure.

[TheYellaBrick]

X2 Nitrogen is bone dry, hence no moisture probs in the working cylinders.