Kalolary 100PCS 1/4″ Universal Barbed 100 Count – 3.50 × 2.00 × 0.4 cm, Black
(Easy to Install: This barbed tee connectors can be quickly connect to the water tube when you need, and it will be easier to install if you soak it in warm water for a while. 4mm ID & 7mm OD)drip irrigation tubing in a “T” shape.