The Claber 1/2" (13-16mm) threaded 3-way compression connector enables the connectivity of 1/2 inch female threaded Pop-Up sprinklers to main tube/hose sections.Threaded 3-Way compression connectorFor 1/2-Inch Pop-Up SprinklersFor use with 1/2" Hoses / Main TubesWatertightEasy InstallationMPN 91017E..