The McAlpine Rubber Inlet Washer 2" Rw3 is a plumbing component used to create a watertight seal between a toilet cistern and the inlet pipe. The washer is made from rubber and has a diameter of 2 inches. The purpose of the inlet washer is to prevent water from leaking out of the cistern where the inlet pipe enters. The rubber material of the washer creates a tight seal that prevents any water from leaking out. The McAlpine Rubber Inlet Washer 2" Rw3 is designed to be a direct replacement for the inlet washer on McAlpine toilet cisterns, but it can also be used on other toilet cisterns that have a 2-inch inlet pipe. It is an essential plumbing component to ensure that the cistern operates efficiently and effectively without any leaks or damage. ・ Available in 1¼", 1½", and 2" sizes ・ Full range of spare parts and accessories are available on The Plumbers Mate