Gas Tubing Assembly for Pin Lock Kegs. The assembly includes 5 ft of 5/16" Ultra Barrier Gas™ PVC Free Beer Tubing, pin lock gas-in connection (barb) and two hose clamps. EJ Beverages' cutting edge Ultra Barrier Gas™ tubing has a number of advantages over regular Vinyl tubing:,,,Clear tubing with red stripe for identification as low pressure gas line,,,PVC Free and BPA Free - containes no DEHP phthalates or other plasticizers,,,Environmentally friendly production - does not emit dioxins,,,Remains flexible at lower temperatures,,,Temperature range of -40 to 125° F