La Pavoni Profesional NEW STYLE upper boiler gasket 111-80 code 2612017 is located just under the boiler body, above the base, creating a seal and blocking movement between boiler and base.
Suitable for bigger boilers, meaning the Pro version (16 cup).
The part has position 4 in the attached scheme pic. Please view second photo for your reference.
NEW STYLE means the gasket has the new 3 holes made, created for the fixing small screws that now La Pavoni uses to block the boiler from NOT moving from the base.