Suitable for use with all 12.5mm (1/2") & 15mm (5/8") hoses, Hozelock's AquaStop Hose End Connector is designed to prevent unnecessary water spillage when switching between spray guns & other hose accessories. The connector incorporates an internal valve which shuts off the water flow when the accessory is disconnected, saving you the hassle of having to return to the tap to change between accessories. An environmentally friendly method of reducing water wastage, the AquaStop Hose End Connector also helps to prevent water from being accidentally sprayed onto the user.Features and Benefits• Triple locking system: guaranteed secure connection with taps up to a water pressure of 10 bar.• Twin soft touch pads: keeps the connector easy to grip & attach when wet.• Firm connection: barbs bind to the inside & outside of the hose to provide a strong, reliable hold.• Flexible hose tail nut: virtually eliminates the risk of hose kinking, hose swilling & hose leakage at the connection point. • A scratch resistant outer sleeve is supplemented by ultra tough engineering plastic internal parts for long lasting usage.