SharkBite 4-Port Pex Manifold with Barb Branches. It is a central distribution fitting with various outlet ports to supply multiple water lines. Barb connections are compatible with Pex tubing and can be either crimped or clamped. It eliminates extra connections and is particularly useful in areas where water service is concentrated such as bathrooms and kitchens. It has a maximum working pressure of 200 psi and a maximum working temperature of 200 F. NSF (National Sanitation Foundation) listed.