The GARDENA Regulator and Shut-off Valve – as part of GARDENA Sprinklersystem – serves the manual regulation and shut-off of individual Pop-up Sprinklers or entire sprinkler groups. The water flow quantity can be infinitely adjusted or switched off entirely. The pop-up spherical cover disappears inside of the socket when opened and thereby presents no obstacle for lawn mowing. The wide rim prevents grass from growing inside the cover. A removable filter prevents contamination of the socket when the cover is open. The GARDENA Regulator and Shut-off Valve has a ¾" male thread.