1-1/2 Inch Standard Foam Washer Product Code ATS091
1.5" standard close coupled foam replacement washer. Fitted in many close coupled toilets, where the porcelain cistern sits on the back of the toilet pan. This doughnut washer fits between the cistern and the pan to prevent external leaks. Measurements: ID is 57mm and OD is 90mm, thickness is around 14mm.