Standard airline tubing often leaks or bursts under the pressure required for CO2 diffusers; this professional-grade hard pipe is the solution. With a 4mm internal and 6mm outer diameter, it provides a secure fit for most regulators and diffusers. By maintaining a steady CO2 supply, it helps stabilize pH levels and promotes a lush, balanced ecosystem. It is an essential component for both beginners and pro-aquascapers looking for reliability and clear water.Length: 2 Meters.Dimensions: 4mm (Internal) / 6mm (Outer) diameter.Durability: High-pressure resistance to prevent leaks and tubing "pop-offs."Benefit: Facilitates optimal pH stability and plant growth.Compatibility: Fits all standard aquarium CO2 equipment.
