2015 PSI / 139 Bar (DOT/TC) Grid view List view 20 cu ft Nitrogen Argon Helium Cylinder Steel 20-STEEL Inert Gas (Nitrogen/Argon/Helium/Neon) Cylinder CGA580 Valve Installed High-Strength, Thick-Wall Steel Body Durable Painted Exterior 14″ Height (with valve), 5″ Diameter Add to cart Add to Quote