Here's a writeup that somebody did for their slider/tank.

http://personal.atl.bellsouth.net/rdu/e/_/e_dan/section_air_compressor.html

I just made a tank out of an old stainless steel fire extinguisher. The walls are really thin, maybe only 1/16", but the gauge goes up to 200psi and the fire guy told me they are rated up to 500psi.

Steve