- High Quality.
- Color : Blue
- Polyurethane Tubing 6x4mm, Co2 Proof
- Prevent Co2 leakage from the tubing
- Save Co2 and long lasting.
- Standard air pipe size: 4mm internal diameter, 6mm outside diameter.
- Use hot water to soften the end of tubing before put that on your device
(such as diffuser, bubble counter, check valve or regulator).
- Connect the tubing to your device