Shark bite 1/2" X 3/8" Od brass barb compression chrome angle stop quarter turn 1 per bag. The Shark bite 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. SharkBite 23058LF Angle Stop 1/4 Turn 1/2-Inch X 3/8-Inch Barbed x Compression Lead Free