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 300 Cu Ft Nitrogen Argon Helium Cylinder Steel - Cap & Collar quantity Add to cart Add to Quote SKU: 300-STEEL Categories: Compressed Gas Cylinders, Nitrogen/Argon/Helium Cylinders Capacity 300 cu ft / 8495 l Diameter 9.1" / 231 mm Height 56.5" / 1435 mm Material Steel Service Pressure 2400 PSI / 166 Bar