The GARDENA Regulator and Shut-off Valve – as part of GARDENA Sprinkler System – is used for manual regulation and shut-off of individual Pop-up Sprinklers or entire sprinkler groups. The water flow rate can be adjusted continuously or shut off completely. The top cover disappears inside the can when opened and therefore it is not an obstacle when mowing the lawn. The wide, circumferential rim avoids grass from growing into the lid. A removable sieve prevents soiling of the can when the lid is open. The GARDENA Regulator and Shut-Off Valve has a 3/4″ male thread.