F19618 - Y Tubing Connectors for 1/2 Inch Inner Diameter Tubing, 12 per Package
Amazon.com : iRunning Drip Irrigation Fittings Kit for 1/2 Inch Tubing, 20 Pieces Drip Irrigation Parts for Drip Sprinkler System - 8 Couplings, 6 Tees, 6 Elbows, Drip Line Connectors for 1/2"
Amazon.com: 1/2 inch Irrigation Fittings Coupling Connectors For (1/2" ID x0.6-0.63" OD) 16mm Drip Tubing Barbed Connectors-10 Pcs/pack : Patio, Lawn & Garden
Habitech 12-Pack Barbed Coupling Drip Irrigation Fittings for 1/2" Tub
Nylon 3-Way T Connector | 3-Way Pipe Connector
F19510 - Straight Tube Connectors for 1/2 Inch Tubing, 12 per package