I am looking at a mixer tap for a basin and it is available in 25mm and 35mm cartridge sizes. What is the advantage if any of the larger cartridge size? Basically I am not sure why a tap would be offered in different cartridge sizes. Specifically this is the tap in question.
http://www.plumbworld.co.uk/architeckt-oval-mono-basin-18008-25591
http://www.plumbworld.co.uk/architeckt-oval-mono-basin-18008-25591