Superior flexibility and outstanding corrosion resistance. Co-extruded rigid and flexible PVC material. 1/4" trade size. 1.5" bend radius. PVC core with corrugated walls bonded to PVC jacket. Handles twists, turns, bends, switchbacks and straightaways with ease. All non-metallic construction ends fatigue and separation problems. Rigid PVC core bonded to flexible PVC jacket. Cuts cleanly with a knife or PVC cutter so there are no jagged edges. Operating temperature -18 to 60°C.