Plastic tubing PEN-6X1-SI-500 standard O.D tubing, for QS plug connectors, CN and CK fittings, polyethylene (not approved for use in the food industry). Outside diameter=6 mm, Bending radius relevant for flow rate=26 mm, Inside diameter=4 mm, Min. bending radius=13,5 mm, Tubing characteristics=Suitable for energy chains in applications with high cycle rates