Use the Reducing Compression Tee to connect one section of 700 Series supply tubing or dripline (0.680 in. to 0.704 in. OD) to two sections of 600 Series supply tubing or dripline (0.610 in. to 0.640 in. OD). With the reducing tee, simply insert the 700 Series tubing inside the black compression ring and 600 Series tubing inside the green compression rings. An internal barb inside the ring compresses the tube to hold it in place. This compression fitting is made of ABS plastic and treated with UV inhibitors to prevent fading and cracking.