CO2 Schlauch PRO 4/6 mm – 2 m
The CO2 PRO Tubing is the reliable link between your CO2 cylinder and your diffuser. Designed specifically for pressurized CO2 systems, it ensures that every milliliter of CO2 you inject actually reaches your plants — with zero losses along the way.
What Makes This Product Special
Standard silicone or airline tubing is CO2-permeable. Over time, gas slowly diffuses through the walls, meaning your bubble counter might show a steady rate while your plants are quietly starving. This PRO tubing uses a CO2-resistant material that prevents this entirely. What you set is what your plants get.
Key Benefits
- Zero gas loss — CO2-impermeable material prevents permeation through hose walls
- Universal 4/6 mm size — fits all standard CO2 regulators, diffusers, and bubble counters
- 2 meters of length — plenty for most under-cabinet setups
- Flexible and kink-resistant — consistent flow even around tight bends
- Transparent and discreet — doesn't distract from your aquascape
- Food-safe materials — completely safe for fish, shrimp, and plants
How to Use
Cut the tubing to your desired length and connect it between your CO2 regulator and diffuser (or bubble counter). To attach to glass fittings, briefly dip the tubing end into hot water for a few seconds to soften it, then push firmly onto the fitting. It will grip tightly as it cools.
Who Is It For
Anyone running a pressurized CO2 system in a planted aquarium. Whether you're a beginner setting up your first CO2 kit or an experienced aquascaper who knows the value of a fully sealed system, this tubing is the right choice.
Technical Specifications
- Inner diameter (ID): 4 mm
- Outer diameter (OD): 6 mm
- Length: 2 meters
- Material: CO2-resistant (polyurethane or food-safe silicone)
Compatibility
Compatible with all standard CO2 system components with 4/6 mm connections — including regulators, diffusers, inline atomizers, bubble counters, check valves, and solenoids from brands like Dennerle, JBL, Chihiros, CO2Art, ADA, and others.
Expert Tip
Never use regular airline tubing in a pressurized CO2 system. The gas slowly escapes through the walls, throwing off your dosing without any visible sign. Replacing it with proper CO2-resistant tubing is one of the cheapest and most impactful upgrades you can make to your plant setup.
