This Orbit 53027 aluminum head adjustment wrench sprinkler tool is used to install and remove sprinkler nozzles from pop-up sprinkler heads. With high-quality die-cast metal construction, this sprinkler head wrench has many uses in sprinkler systems repair and for sprinkler systems do-it-yourself projects. If you need to replace or install a pop-up nozzle from a springloaded sprinkler head, this is an Orbit sprinkler system tool you must have. The Orbit 53027 is easy to use and versatile in installing and replacing sprinkler system parts. Features and Benefits: Constructed of high-strength, die-cast aluminum, Installs or removes water sprinkler nozzles from pop-up sprinkler heads, Offers many years of dependable sprinkler system repair use.