Dennerle Special CO2 Hose

Dennerle Special CO2 Hose

  • Black, special CO2-proof plastic
  • Hose diameter 4/6 mm
  • Highly flexible, easy to install
  • Pressure-proof up to 7 bar
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The Special softflex CO2 hose is a reliable protection from CO2 leaks. CO2 simply seeps through many hose materials. The special Softflex CO2 hose from DENNERLE consists of a special CO2-proof plastic to ensure that valuable CO2 arrives where it is needed - in the aquarium.

Figuratively speaking, CO2 is instinctively "driven" to dissolve in water whenever the opportunity arises. In the event of an interruption in the supply of CO2 to the aquarium (CO2 cylinder empty, cylinder valve closed, CO2 night cut-off valve active, etc.), the CO2 which is presently still in the hose will also dissolve in the aquarium water. This causes a vacuum in the CO2 hose, drawing aquarium water into the hose.

The special CO2 check valve from DENNERLE reliably protects valuable items of CO2 equipment such as the pressure reducer, CO2 cylinder, CO2 night cut-off valve, etc. from backflowing water.

Note: Currently, there is a change in this product. The 2 meter version could be delivered in green or black.


  • Special CO2-proof plastic
  • Hose diameter 4/6 mm
  • Highly flexible, easy to install
  • Pressure-proof up to 7 bar



Dennerle has been operating in Vinnigen since its foundation in 1966 and, after more than 50 years of company history, the building blocks Dennerle relies on is experience. The philosophy behind Dennerle is to create a small and tangible, intact piece of nature, in harmony with the natural environment. That is why sustainability is a company-wide concept and is implemented at every possible point. In order to achieve an ecologically balanced aquarium, Dennerle relies on a system that is based on 5 pillars. Animals, plants, water, substrate and lighting. Dennerle offers the optimum equipment to bring this complex, but not complicated system into harmony.

General information

Item no.
EAN 4001615030600
Weight 0,06 kg
Shipping weight 0,20 kg

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