DUO tubing PUN-8X1,25-DUO-SI Standard O.D tubing, for QS plug connectors, CN and CK polyurethane fittings (not approved for use in the food industry). Outside diameter=8 mm, Bending radius relevant for flow rate=37 mm, Inside diameter=5,7 mm, Min. bending radius=24 mm, Tubing characteristics=Suitable for energy chains in applications with high cycle rates