Transition from a 1/2 in. riser to supply tubing or dripline (0.704 in. to 0.710 in. OD) using the 1/2 in. FPT Swivel Riser Elbow 710 Series Compression Adapter. The 1/2 in. FPT threads onto 1/2 in. MPT connection. Tubing fits into the compression ring, where an internal barb compresses the tube and holds it in place. Swivel end prevents tubing from kinking. Swivel riser elbow includes a washer which creates a watertight seal. This compression fitting is made of ABS plastic and treated with UV inhibitors to prevent fading and cracking. Use fittings to set up a new drip irrigation system, expand an existing system, or make repairs.