Nitrogen/Argon/Helium Cylinders Grid view List view 300 Cu Ft Nitrogen Argon Helium Cylinder Steel – Cap & Collar New 300 Steel Cylinder 300 cu ft – 8495 Liters 2400 PSI Service Pressure – 4000 PSI Test Pressure 56.5″ Height – 9.1″ Diameter DOT- and TC- Approved Add to Quote ← 1 2 3