One of the biggest problems customers report is trying to identify the number of teeth on their valves or the tap handles to find the right fit for their taps. To help make it easier, quicker and more identifiable to replace your tap cartridge, we’ve created new categories that separate our valves by the number of teeth (splines) with these being divided into valves with 16, 18, 20 (the most common size), 24 and 28 teeth. They can be found here: Finding your tap valve by number of teeth