Dont let a productive day on the water get spoiled by a cracked aerator tube! This soft, clear Marine Metal Silicon Airline Tubing is great insurance in the event something does happen to your livewells aerator tubing. Measuring 6 long and designed not to kink or crack, this Silicon Airline Tubing will maintain its flexibility for long periods. Cancer and Reproductive Harm- www.P65Warnings.ca.gov. Type: Aerators.