Announcing the latest addition to the Drip Depot collection: Twist-N-Lok reusable fittings designed for 1/2" (.600 ID x .700 OD) poly tubing, featuring a variety of popular fitting options.The Twist-N-Lok Tubing Tee is perfect for branching off a straight run or connecting three sections of tubing in different directions.It's effortless to use: rotate the Twist-N-Lok collar inward to reveal the barb. Slide the tubing onto the barb as far as it can go. Then, simply rotate the Twist-N-Lok collar outward over the tubing to establish a secure, leak-proof connection.