Franke Tap Valve SP3561  (previously listed on Installation Guides as 3561R – it is the same Franke Tap Valve. SP stands for Spare Part).
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.  If your Tap is dripping where the Spout meets the Base you might need to replace your O Ring Kit.

Nut Height: 8, Splines: 28, Overall height: 53mm, Diameter at thread: 21mm
Here is the link to all the Franke Taps that we stock spare tap parts, Franke Taps Spare Parts, for to enable you to identify which Franke Tap you have.
For more information see below.