Parker stainless steel solenoid gasket set

With a standard flange solenoid valve you only need 2 small o rings to seal this off, this is the case with brands such as Asco/sirai, Parker, Lucifer and Ode. But the brand Parker has also stainless steel solenoid valve, which use a o ring and a outer gasket, which is not a o ring.

This type of gasket used on various espresso machine brands such as Astoria, Cimbali, Faema, La Spaziale and Wega. Their part references are Astoria 12299001, Cimbali 539-901-000, Faema 539901000, La Spaziale 11535 and Wega with WY12299001. The Parker part reference number for this item is 7GRS01