The Optima 49 replacement push button from Siamp is compatible with the popular Optima dual flush valve used by multiple companies, including Twyford and Leicico. It is also commonly used in suites supplied by major DIY retailers. This button boasts a user-friendly design that is easy to clean and simply screws into the flush valve.

• Suitable for the Optima 49 flush valve only, usually found in Twyford cisterns
• Stylish chrome plated button
• Fits hole sizes from 38-40mm