Wirquin Jollytronic No Touch Toilet Cistern Flush Valve & Sensor 10120021 Flush Plate one of the washers is

one of the washers is plastic

The Jollytronic suits most bottom entry cisterns and is suitable for both new build and retro-fit

In such a case you'll likely need to replace the complete syphon assembly including the stem

Contents: 1 x Push button complete with securing nut and removable shroud

Flush amount adjustable

Wirquin Jollytronic No Touch Toilet Cistern Flush Valve & Sensor 10120021 Flush Plate one of the washers isThe Jollytronic from Wirquin is an advanced no touch dual flushing kit that operates via a no touch infra red signal that is perfect for all members of the family. It is operated via motion, which means that it is very easy to use, as well as being hygienic at the same time. The end user can also determine how long the flush will last via an Eco Stop mechanism, which means that they remain in total control of their own water consumption which is great