125 Cu Ft Nitrogen Argon Helium Cylinder Steel – Cap + Collar New 125 Steel Cylinder 125 cu ft – 3539.6 Liters 2265 PSI Service Pressure – 3750 PSI Test Pressure 41.7″ Height – 7″ Diameter DOT- and TC- Approved 125 Cu Ft Nitrogen Argon Helium Cylinder Steel - Cap + Collar quantity Add to cart Add to Quote SKU: 125-STEEL Categories: Compressed Gas Cylinders, Nitrogen/Argon/Helium Cylinders Capacity 125 cu ft / 3539.6 l Diameter 7" / 177.8 mm Height 41.7" / 1060 mm Material Steel Service Pressure 2265 PSI / 156 Bar