Clearwater Cherika Kitchen Tap Valve 1427R is a quarter turn Tap Valves. If your Tap is dripping from the Spout then you might need to change your Valves.  Here is our Guide 7 Easy Steps to replace Kitchen Tap Valve.
Measurements of this 28/8 Valve with thread:

Nut Height: 8, Splines: 28, Overall height: 53mm, Diameter at thread: 21mm.

If your Tap is dripping where the Spout meets the Base you might need to replace your the O Ring Kit.

Here is the link to all our Clearwater Cherika Kitchen Tap Spare Parts.

The Hot and Cold have the same part number but cold opens anti clockwise and the hot opens clockwise so you have to order the Hot for the hot side, and the cold for the cold side .

Clearwater Cherika Kitchen Tap Valve 1427R for Hot Water or Cold Water side of many UK Kitchen Taps.

Nut Height: 8, Splines: 28, Overall height: 53mm, Diameter at thread: 21mm