Plastic tubing PUN-3X0,5-SI-500 Standard O.D tubing, for QS plug connectors, CN and CK polyurethane fittings (not approved for use in the food industry). Outside diameter=3 mm, Bending radius relevant for flow rate=12 mm, Inside diameter=2,1 mm, Min. bending radius=9 mm, Temperature dependent operating pressure=-0,95 - 10 bar