The Reducing Compression Coupling is used to connect one section of 900 Series supply tubing or dripline (0.940 in. OD) to another section of 700 Series supply tubing or dripline (0.680 in. to 0.704 in. OD). With the reducing coupler, simply insert the 900 Series tubing inside the gray compression ring and the 700 Series tubing inside the black compression ring. Inside the ring, an internal barb 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.