Description
At a Glance
A portable aluminum cylinder for draft beer, home carbonation and aquarium CO2 systems. The 5 lb capacity is the amount of CO2 it holds after a qualified local supplier fills it; the tank arrives empty. The CGA320 valve is the connection point for a matching regulator, which is not included.
A 5 lb CO2 Cylinder, Not a Regulator
This product is the cylinder itself. The pressure regulator, gauge, gas hose and siphon are separate parts, and the tank arrives empty. That distinction matters before you order: a CGA320 regulator does not come in the box, and the cylinder still needs to be filled locally before it can dispense anything.
What the 5 lb Capacity Means
The rating describes the amount of CO2 the cylinder can hold after filling. VEVOR lists approximately 6 to 8 small beer kegs per fill, a useful planning figure rather than a guaranteed pour count. Serving pressure, temperature, line length and purging all change how quickly the gas is used.
The empty cylinder weighs about 8.8 lb / 4 kg. That is the weight you will handle before the gas charge is added, and it is one reason an aluminum tank is easier to move than a similar steel cylinder.

The CGA320 Valve and Regulator Match
The valve has a copper body and the CGA320 connection used by many draft systems. Match it to a CO2 regulator with the same fitting and confirm that the regulator suits your keg, carbonation or aquarium setup. A regulator sold for another gas or another connection is not interchangeable just because it looks similar.
The cylinder carries DOT and TC markings, with an 1800 PSI / 124 BAR working rating and a 3000 PSI / 207 BAR test rating. Inspect the marks and the cylinder body before a refill, and have filling and inspection handled by a qualified gas supplier.
Choose the Right Accessories
For draft beer, plan for a CGA320 CO2 regulator, the correct gas line and the fittings required by your keg coupler. For home carbonation, verify the adapter path to your machine. For an aquarium system, confirm the regulator, solenoid and tubing are rated for CO2 and for the pressure you intend to use.
No SodaStream hose, siphon or dip tube is included. If a product page shows a regulator in a lifestyle image, treat the cylinder and regulator as separate pieces unless the package list explicitly states otherwise.
Fill, Carry and Store It Safely
Keep the cylinder closed when it is not connected, secure it so it cannot fall, and follow the supplier’s instructions for transport and storage. Do not lay a connected CO2 cylinder on its side or improvise a regulator connection. If the valve, threads or cylinder show damage, stop and have the assembly checked before use.
Performance & Applications






















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