Hozelock's World-class Pro metal quick connect hose connectors are suitable for use with all 12.5mm 1/2″ and 15mm 5/8″ hose. (A version for 19mm 3/4″ hose is also available). The Zinc die cast sleeve ensures that the Hozelock connector is strong durable and scratch- resistant. All internal parts are made from ultra-tough engineering plastics for a long leak free life. The connection to the tap is guaranteed to remain secure up to 10 bar, thanks to a triple locking system. The sleeve is easy to use even when wet because of the twin soft touch pads. The hose is firmly connected thanks to barbs that connect with the inside and outside of the hose. Hose kinking, hose swelling and hose leaking at the connection point with the fitting is virtually eliminated due to the ingenious flexible hose-tail on the nut.