Claber Automatic Aquastop Coupling is a Quick-Click coupling with Aquastop system, allowing you to connect and disconnect accessories from the end of the hose without having to shut off the tap. The result of Claber research and experience, it is entirely rust-proof (as it has no metal parts), shock-proof, resistant to the elements, UV rays and very high water pressure: up to 40 BAR, well over the usual level in home gardening applications. The internal Claber-patented spring is extremely resistant and durable. Made in Italy.