When the flushing doesn't stop filling, it's important to check the mechanism, often the cause of the problem. If the flush mechanism looks in good condition, this is surely the seal you need to change. The advantage is that replacing a seal is a simple operation and takes only a few minutes. How to replace the seal in just a few minutes, you will only need simple tools such as an adjustable wrench or a power strip pliers. To remove the tank: cut off the water and empty the tank by pulling the flush - remove the control knob and remove the cover. Unscrew the tank fixings to the bowl and remove the tank by lifting it up Suitable for all models. Dimensions: outer diameter. 72 mm x inner diameter. 24 mm x 4 mm thick. Always use the seal that fits your mechanism in place, to ensure its seal. Sanitary Eau / Toilette / WC, Manufacturer: Somatherm