This Universal Tap Adaptor allows you to connect the flow diverter to most taps The Jubilee fitting is a universal adaptor to fit most taps less than 20mm in diameter The rubber sleeve fits over the end of the tap, and the stainless steel clamp tightens to make the fitting secure A Flow Diverter will screw onto the brass thread of the Jubilee Fitting To fit a standard 21mm female flow diverter