C.K. Brass Interlock Int Thread Connector 1/2in

Tough and corrosion free brass construction. O-ring sealed for reliable leak free connection. Ideal for converting a female threaded tap or other equipment such as jet washers to connect to a female hose coupling

To make sure this is the correct fitting for your needs, simply measure across the diameter of the threads on your tap or equipment

A1/2" threaded fitting measures 21mm