This outlet valve is designed for the OLI 74 in-wall cistern, which is commonly installed with wall-faced and wall-hung toilet pans. The valve shown in the main image is the most widely used model, but OLI has also released a newer retrofit version that fits four different variations of this cistern.

To check if you have an OLI cistern, look at your flush plate — it will usually have "OLI" marked on it. We've included images of the most common OLI flush plates to help you identify your system.

OLI74 Plus maintenance with EVOLI