SharkBite Angle PEX Stop Valve - SharkBite 1/2" x 3/4" brass barb chrome MHT angle stop 1 per bag. The SharkBite barb connection system is the best option for connecting PEX tubing in water distribution systems when lower material cost is desired. Robustly constructed with DZR brass and are corrosion resistant. NSF approval. - Size: 1/2" CF X 3/4" MGH, Material: Brass