Contains: tap connector 3/4" (20-27 mm) and reducer 1/2" (15-21 mm) , automatic couplings 1/2" with and without aquastop, jet spray nozzle. Everything you need to water: all that's missing is the hose! Nozzle with adjustment cap Coupling with aquastop system Couplings tested up to 1.5 million "clicks" Materials Body: ABS Couplings: ABS, PP Tap connector: ABS Technical Specifications Packaging: kit Inlet thread: 1/2", 3/4" Inlet quick connection: Quick-Click System Outlet quick connection: Quick-Click System Pipe diameter: hose 1/2" Automatic water shut-off: Aquastop Jet adjustment: concentrated, cone Adjustment: open/close