This Silicone Airline Tubing is ozone resistant, and is very flexible and easy to use. Max psi of 30. It is easy to cut with standard scissors. It is 6mm in diameter, and is safe for fresh or saltwater.
We sell this Silicone Air-Line Tubing in 1 meter increments, or by the roll. Remember it is always a good idea to have extra on hand.
Other plastic tubing is available in both clear and black. Black is great for "hiding" the tubing from view. Available in 30-meter rolls.