The SharkBite Barb fittings are corrosion resistant. With a wide range of fittings, manifolds, valves, clamp rings, crimp rings, ball valves and tools available, the SharkBite PEX/Barb Connection System is perfect for your next plumbing project. Use for new installation and repair of potable water distribution systems. Fittings should be wrapped with an impervious material, chloride-free tape or tightly wrapped and sealed insulation works well to prevent direct contact with other pipes.