Aquapro CO2 Tubing in Grey is a high-pressure, gas-resistant aquarium line designed specifically to prevent carbon dioxide loss in planted tank setups. Unlike standard silicone airline tubing which allows CO2 gas to slowly leak through its walls, this specialized tubing ensures stable gas delivery and a clean, professional finish.

Key Specifications & Features:

• Material Variants: Available as high-pressure polyurethane (TPU) for maximum gas retention or as a specialized thick-walled flexible silicone option designed specifically for continuous CO2 use.
• Dimensions: Built to the global hobby standard 4mm inner diameter / 6mm outer diameter (4/6mm bore), making it seamlessly compatible with most aquarium regulators, bubble counters, and diffusers.
• Aesthetics: The neutral/dark grey colour easily blends against backdrops or behind aquarium hardware to minimize visual clutter.
• Pressure Resistance: Engineered to tolerate high output pressures (up to 10KG on TPU variants) to prevent lines from popping off regulator ports or check valves under load.

Tips for Installation:

Because high-pressure CO2 tubing is inherently more rigid than basic air lines to handle the gas density, it can be stiff to push onto fittings. Dipping the tip of the grey tubing into warm or boiling water for 5 to 10 seconds before sliding it onto your regulator or bubble counter will soften the material temporarily and ensure an airtight, secure fit.