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20 lb. Aluminum CO2 Cylinder with Siphon Tube and Handle

New 20 lb. aluminum CO2 cylinder with siphon tube already installed for liquid CO2.


Premium Construction

  • Brushed finish on thick, durable cylinder walls.
  • Lightweight, corrosion-resistant aluminum.
  • Engineered alloy designed for high strength and great low temp performance.
  • Siphon tube installed ready for liquid CO2.


Quality Features

  • 8″ diameter x 27.25″ height (with valve and handle)
  • DOT- and TC-approved
  • Certified or hydro-tested within 180 days
  • New CGA320 valve
  • Consistent tare weight
  • Applications: industrial, hydroponic, and welding
  • Ships empty

Please Note: All aluminum CO2 cylinders are sourced from several manufacturers. As a result, the cylinder you receive may have a brushed dome or unfinished dome. We apologize, but we are unable to take special requests at this time.


20 lb CO2 tanks are also available without the siphon tube.

Find this CO2 cylinder and other top-quality CO2 tanks on the CO2 cylinder page.

Additional Questions? Please see our frequently asked questions page.

Still have questions? Email us at

Weight 28 lbs
Dimensions 28 × 9 × 9 in
Gas Type





Brushed Aluminum


20 lb / 9.1 kg





Service Pressure

1800 PSI / 124 bar

Test Pressure

3000 PSI / 207 bar

Internal Volume

817.7 cu in / 13.4 l

Water Capacity

29.4 lb / 13.4 kg

Tare Weight

23 lb / 10.4 kg


23.3" / 592 mm


8" / 203 mm

Thread Size

1.125" UNF


Cylinder Filling



Siphon Tube Note

Additional external components are needed to siphon CO2 to another tank; components are not included.


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