John Guest Angle Stop Adapter Valves are manufactured from white polypropylene and equipped with food grade EPDM O-rings. This exchangeable valve with conversion adapter can be threaded to either side of the main kitchen valve (standard valves in the US are either 1/2" or 3/8") to make various configurations with either plastic or soft copper tubing.
John Guest's push-fit technology makes the installation and 1/4" tubing connection easy and leak-free. The tube is easily pushed in by hand and then firmly locks in place. There is no need for any special tools. the perfect product to divert water from under the main cold water supply to applications such as reverse osmosis, ice-makers, filtration systems, coffee machines, hydroponics, and many more.