Tube 12mm Manufacture China / Taiwan - Body : Nickel Plated Brass, Technopolymer - Locking ring : Stainless Steel - easy pipe insertion - High holding force - Damageless extraction - Release Sleeve : POM - Max. working pressure : 10 bar at 20 C (for PA11 tube) - For tubes made from : PA11 (Nylon), PU, PE, PTFE - Temperature range : 0 to 70 C: air, water