The latest version of the Hozelock Aqua Stop 12.5 mm (1/2 ) quick release. Leading in the field of Aqua Stop quick couplings The zinc body gives the Aqua Stop a long service life, is robust, scratch resistant and frost resistant. An external plastic damper protects cars and greenhouses from damage. Soft Touch anti-slip handle recessed. Water saving: a valve stops the flow of water as soon as the connection device, such as the syringe or the lawn sprinkler, is uncoupled.