I was able to find a large selection of brass fittings at a local Hydraulic SUpply store. They had everything I have ever needed in brass fittings.
Also, I have split off my 20# tank and ran 20' using Nylon tubing (also from the hydraulics supply store). I don't really know if it is leaking CO2 or not but here is a handy little chart comparing the permiability of different materials - lower the number the better. Nylon is 20, seems like one of the lower numbers. If you could I think I would use copper for such a distance.
I think the CO2 Proof tubing is Polyethelyne, not 100% sure though.
http://www.coleparmer.com/techinfo/techinfo.asp?htmlfile=SelectingTubing.htm
Also, I have split off my 20# tank and ran 20' using Nylon tubing (also from the hydraulics supply store). I don't really know if it is leaking CO2 or not but here is a handy little chart comparing the permiability of different materials - lower the number the better. Nylon is 20, seems like one of the lower numbers. If you could I think I would use copper for such a distance.
I think the CO2 Proof tubing is Polyethelyne, not 100% sure though.
http://www.coleparmer.com/techinfo/techinfo.asp?htmlfile=SelectingTubing.htm
