Sharkbite 3/4"x3/4" Copper BarbxBarb 6 Port Open Manifold. It has 1/2" barb ports that are compatible with PEX pipes (not included). The manifold is suitable for use in water distribution systems and is made of copper. It works with crimp or clamp connection methods. The SharkBite Connection System offers an extensive line of barb fittings plus manifolds, supports, and tools for both clamp and crimp ring PEX tubing installations.