Specification Outer diameter: 6mm Inner diameter: 4mm Product name: PU pipe Product material: Polyurethane Operating temperature: -20 ℃ ~ 60 ℃ Use medium: Air Tensile strength: 400Kg / cm² Abrasion resistance: 35mg Tear strength: 110Kg / cm² Working pressure: 8 Bar 0.8MPA Pipe hardness: 95A Elongation: 490% ~ 590% Diameter tolerance: ± 0.1mm ± 0.15mm Upgrade your aquarium setup with the 6mm High Pressure CO2 Tube Hose – Order now and experience the difference!