Siamp Optima 49 / 50 Toilet Flush Valve Outlet Seal

Siamp Optima 49 / 50 toilet flush valve outlet seal.

This is the rubber seal that holds the water in the cistern. If your toilet cistern empties slowly on its own, this seal can be the problem.

Seal is fatter in the middle than at the edges.

Internal diameter 4.3cm, external diameter 7.1cm.

Siamp part number : 34490509