Festo Air HoseThe Festo air hose is made from superior quality polyurethane. It is compatible with cable carriers for applications with high cycle rate suitable for energy chains greater than 5 million cycles. It operates on compressed air. It has inner diameter of 2.1mm and outer diameter of 3mm. The pneumatic connections have been given for plug nipple interior and for push-in fitting exterior diameter.Features and Benefits• Superior quality pneumatic fittings• Easy to use tubing• Plastic tubing PUN-3X05-RT standard O• D tubing for QS plug connectors CN and CK polyurethane fittings (not approved for use in the food industry)Applications• Welding• Industrial robotics• Pneumatic valves, fuel and lubrication lines• Control instrumentation• Pneumatic lines, chemical transfer tubing and metering pumps