Rancilio Silvia Boiler Gasket  €6.90

This is an after-market product and not the original Rancilio - it will fit and act the same  
 

Details:
This is a Red silicone boiler O-ring for   Rancilio boilers for Rancilio and Saeco models
You may need to change the boiler gasket if there is a leak from the boiler.
O rings can perish over time and use.

Specifications:
Size: Thickness 3.53 mm x Internal size ø 74.61 mm