Superflex 3/16" ID Thick Wall Vinyl Beverage Tubing - 100 ft.Superflex Thick Wall Vinyl Tubing is the premium standard for draught beer line balancing. Featuring a 3 16" internal diameter and an extra thick 7 16" OD, this tubing is engineered for high pressure stability and exceptional kink resistance. The thick wall reduces "ballooning" under gas pressure and provides superior insulation, which is critical for minimizing foam in short draw systems. Made from high purity, food grade PVC, it is flavor neutral