Castle Dawn Aquatics Aquarium Clear Non Kink 6mm ''Oxygen Tube'' Silicone 30ft Airline Tubing

Our airline is 100% silicone, it will not harden and break.

Key Features and Important Notes:

• Size: 30 Feet.
• 6mm Outer - 4mm Inner.
• Fits all standard outlets.
• Will not kink or harden over time.
• Made from 100% Silicone.