125 cu ft Steel Helium Cylinder DOT Stamped

New 125 cu ft. steel DOT stamped helium cylinder with rust-stop painted exterior and a standard Inert Gas CGA580 valve installed. This is our largest Helium cylinder dedicated to tackling the big jobs. Industrial and party professionals alike trust this workhorse for the long run.

All cylinders ship empty. Please consult your local compressed gas supplier for filling needs.

Due to current nationwide helium shortages, it is recommended you locate a helium filler in your area prior to purchase.

How many balloons will this cylinder fill? Find our estimate here!

Premium Construction

  • Durable steel construction.
  • Thick painted walls.
  • Cap and Collar.

Quality Features

  • 7″ diameter x 43″ height (with valve)
    • Note: due to differences between manufacturers, cylinder height may vary by +/- several inches
  • DOT-stamped
  • Certified or hydro-tested within 12 months
  • New CGA580 valve
  • 3/4″ NGT inlet thread
  • 58 lb. tare weight
  • Applications: Balloons, Industrial, and Beverage
  • Ships empty
  • Cylinder color may be gray or cranberry

See more steel and aluminum helium cylinders on our helium cylinder page.

Questions? Please see our frequently asked questions page.

Still have questions? Email us at [email protected].

Product note: compressed gas cylinders can be dangerous if used improperly. Please be careful, know the correct procedures for use, and exercise caution when connecting and using any compressed gas device.

Weight 61 lbs
Dimensions 7 × 7 × 47 in


Gas Type

Helium, Inert/Mixed, Mixed (CO2 + Nitrogen), Neon, Nitrogen


Painted, Rust Inhibitor


125 cu ft





Service Pressure

2265 PSI / 156 Bar

Tare Weight

58 lbs


43 in


7" / 178 mm

Thread Size

3/4" NGT


Beverage, Industrial, Tire Inflation, Welding



Water Capacity

1320 cu in / 21.65 l




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