The GARDENA Shut-Off Valve 4.6 mm (3/16") as part of the GARDENA Micro-Drip-System serves to shut off individual lines of Supply Pipes. With the Shut-Off Valve， the throw of the Micro Rotor Sprinkler 360? can be infinitely adjusted. Thanks to the patented "Quick & Easy" connection technology， installation is especially easy. Two pieces are included. After-sales service provided.