Bevlex Thick Wall Beverage Line - 3/16" ID by 7/16" OD (Per Foot)
This is a superior tubing due to the thickness of the inner wall. The FDA accepts it as food-grade quality. It can be used for gas lines as well as beer lines. If you are considering using it for gas, the PSI rate is 2.2. While the Ultraflex (red) gas line is 50 PSI.
Note: Tubing is priced and sold by the foot. So for those of us who think in metric 1' equals 30.48 cm.