Add a branch to your supply tubing with the Smart Loc™ Universal Tee, the unique fitting that accommodates multiple tubing sizes. Use the fitting with 1/2 in., 5/8 in., and 0.710 in. tubing or dripline to connect sections together, or transition from one tubing size to another. To install, twist the nut toward the center of the fitting, insert the barbed end into tubing, then twist the nut over the tubing for a secure fit. The reusable fitting can be used to set up a new drip system, or to expand or repair an existing system. Made of acrylonitrile butadiene styrene (ABS).