Add a 90 bend in your distribution line without worry about the tube kinking with the 5/8 in. Compression Elbow. Also known as an "El", the fitting joins two sections of 5/8 in. supply tubing or dripline with a watertight connection. The tubing end is inserted inside the fitting using a back-and-forth motion while applying pressure (Tip - for stiff tubing, soak the ends in hot water or leave out in the sun to soften the material). Made of acrylonitrile butadiene styrene (ABS) treated with UV inhibitors to prevent cracking.