You should be able to ascertain which cartridge you need by looking at the technical drawing for the shower valve required. These can be found throughout our website.
For older ranges not found on our website please refer to our cartridge reference sheet: www.cifial.co.uk/spareparts/showers.PDF
3/4″ Ceramic Cartridge RH
(quarter turn, anti-clockwise to open)
Diverter Cartridge & Housing