Premium Clear CO2 PU Tubing for Planted Aquariums (6x4mm, 1 Meter)

Upgrade your planted tank's carbon dioxide injection system with our Premium Clear CO2 PU Tubing, available now at www.onyxaqua.com. Standard silicone airline tubing is highly permeable to CO2 gas, leading to rapid gas loss before it even reaches your tank. This specialized Polyurethane (PU) tubing is specifically designed to handle high-pressure CO2 systems with zero gas leakage, ensuring your aquatic plants receive the exact amount of carbon they need to thrive.

Key Features & Benefits

• High-Pressure Rating: Specifically manufactured to handle pressurized CO2, safely withstanding up to 1.0 MPa or 150 PSI.

• Extreme Temperature Tolerance: Remains reliable and flexible in a wide variety of conditions, rated for use in temperatures ranging from -30°C to 70°C.

• Standard Compatibility: The 6x4mm size (6mm outer diameter, 4mm inner diameter) is the industry standard, ensuring a perfect, snug fit on your regulators, bubble counters, check valves, and diffusers.

• Zero Gas Permeability: Made from dense Polyurethane (PU) that prevents CO2 from escaping through the tube walls, maximizing your gas cylinder's lifespan.

• Crystal Clear Design: The highly transparent material allows for easy monitoring of water backflow and keeps your aquascape's hardware looking clean and discreet.

Product Specifications

Installation Tip

Because PU tubing is exceptionally dense and rigid to handle high pressure, it can be difficult to slide over fragile glass diffusers. Pro Tip: Dip the very end of the PU tubing into a cup of hot water for 10–15 seconds before installation. This temporarily softens the plastic, allowing it to slide smoothly onto your glass or metal CO2 accessories without risking breakage.