Raindrip&trade; 1/2-inch Barbed Elbows - 5 pack 1/2 Inch Barbed Elbow Fits 1/2 Inner Diameter tubing Perfect for Hydroponic and Irrigation applications Use 1/2" Barbed Elbow for Sprinkler Swing Pipe too Also seals 1/2" I.D. Rubber Grommets