-Dual layer tubing that gives the benefits of longer life and hygienic properties associated with silicone, but with the robustness and value of black tubing.

-The inner white layer of a special thermoplastic vulcanizate (TPV) rubber has superb hygienic properties and is resistant to butterfat and acids. Butterfat cannot pass through this layer, so the tube stays clean.

-The black rubber outer provides high durability and flexibility and resists ozone cracking commonly seen in dairy tubes.