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Where to buy CO2

Which CO2 bottle do I need?

For our CO2 traps, we recommend using a 10 kg gas bottle. However, you could also use 5, 6, or 20 kg if you prefer.


Where can I get the CO2 bottles?

The gas bottles are not included in the contents.

The gas bottles can be acquired or rented at drink retailers or bottle depots for a deposit. A door-to-door delivery service may also be available in some locations.

The following sites offer competitive renting prices:

Air Gas has over 900 locations throughout the US.

Other CO2 suppliers are mostly regional, Welding and Brewing suppliers.

How long does a gas bottle last?

How often you need to change the gas bottle depends on:

  • what size you use and
  • which release rate of CO2 you use

If CO2 is released continually over 24 hours with our recommended release rate of 0.5 kg/day, a 10kg CO2 tank will last about 20 days.

Recommendation for the handling of gas bottles:


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