Solvent weld the PVC Compression Ring into a 1/2 in. PVC slip fitting (sold separately) to form a leakproof compression adapter. Use the compression ring attached to the slip to adapt 1/2 in. pipe to 710 Series supply tubing or dripline (0.704 in. to 0.710 in. OD). Tubing is inserted into the blue compression ring, where an internal barb compresses into the tube to hold it in place. Compression ring is made of PVC and treated with UV inhibitors to prevent fading and cracking.