This washer fits between the boiler and the expansion valve (OPV) and fits Silvias. Genuine Rancilio part number 36240007. You will need 2 of the copper washers. Rancilio recommends 1 of the 11x7x1 and 1 of the 11x7x1.5. It varies from Silvia to Silvia, so J.L. Hufford recommends purchasing 2 of each, as the cost is minimal.
|Name:||Rancilio Copper Washer for Silvia, 11x7x1|