CO₂ Tubing – High-Pressure TPU

High-Pressure CO₂ Tubing – 5 Meter Coil
💨 Flexible. Durable. Built for planted tanks.

This premium 4/6 mm CO₂ tubing manufactured by week aqua is made from high-pressure thermoplastic polyurethane (TPU), engineered for serious aquarium use. It resists kinking, cracking, and gas permeability — ideal for clean, reliable performance in demanding setups.

Each 5-meter coil includes 5 reusable suction cups that clip directly to the hose, keeping lines secure and neatly routed. Designed for external reactors, inline diffusers, and professional CO₂ layouts.

✅ Key Features

• High-Pressure TPU Construction – Designed for CO₂ use, won’t harden or crack over time

• Flexible and Durable – Easy to route without collapsing or kinking

• Gas-Tight – Prevents CO₂ loss from porous lines like silicone

• Generous Length – 5 meters (16.4″) per coil for most layouts

• Mounting Hardware Included – 5 suction clips for clean installation

• Standard Size – 4 mm inner × 6 mm outer diameter

📐 Specs

• Tubing Length: 5 meters (16.4 feet)

• Inner Diameter: 4 mm

• Outer Diameter: 6 mm

• Material: Thermoplastic Polyurethane (TPU)

• Weight: 2.6 oz (with suction cups)

• Package Size: Approx. 6.5″ × 6.5″

• Includes: 1 tubing coil + 5 hose clips

• MPN: BZ-T46-5M

❓ Q&A

How do I get the tubing onto my fittings?
If the fit is too tight, dip the end of the tubing into hot tap water for 20–30 seconds. This softens the material and makes installation easier.

Is this compatible with airline tubing?
No — this is high-pressure tubing designed for CO₂ injection systems. It is not compatible with standard 4/6 mm soft airline fittings made for air pumps.

Can I cut it to custom lengths?
Yes. Use a sharp utility knife or hose cutter. Make clean, straight cuts to ensure a proper seal and prevent leaks.

Will it stay flexible over time?
Yes — unlike vinyl or silicone, this TPU tubing remains soft and kink-resistant even with extended CO₂ exposure.