Keeps your aquarium neat and tidy

The DENNERLE CO2 hose fix provides a simple and tidy means of installing the CO2 hose in your aquarium.

• in break-proof plastic
• including screws and double-sided adhesive tape (...)

For aquaria of up to 250 litres

• efficient and compact
• with built-in bubble counter (...)

For aquaria of up to 400 litres

• especially for external filters
• ideal when you want the equipment in your aquarium to be "invisible"
• efficient and compact (...)

Saves valuable CO2

The DENNERLE CO2 night cut-off valve enables automatic control of the CO2 supply in either of 2 ways, thereby saving valuable CO2 every day (...)

Compact CO2 diffusors offering the ultimate in efficiency.

• designed especially for larger aquaria and aquaria with a high CO2 requirement
• with waste gas vent
• powered by motor filter or separate motor-driven pump (...)

The latest result of the work carried out by the research and development department is a new, highly effective yet extremely compact
CO2 diffusor designed especially for mini aquaria: The CO2 Nano Flipper.

• Effective dissolving of CO2
• Integrated bubble-counting function
• Incl. waste gas vent

How it works: (...)

Profi-Line CO2-Controller with high-level precision
pH-Controller Evolution

• Profi-Line pH electrode
• Electrode holder
• pH 4 calibrating solution, 50 ml
• pH 7 calibrating solution, 50 ml
• Aqua dest., 250 ml
• Calibrating stationExactly controllable CO2-addition (...)

Reliably protects CO2 units from backflowing water.

• CO2 is a special gas which has quite different physical properties to air
• DENNERLE has thus developed a special check valve for operation with CO2 (...)

Refill package

For Correct CO2 long term test. Contents: 5 x 1.3ml ampoules. With six colour comparison scale. Sufficient for 5 months (...)

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.

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

permanent, direct CO2 control

• 3 ways of attachment
• Extremely easy to read thanks to reflector clasp

Complete set consisting of: (...)