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E61 manual group head chrome mushroom.  For group heads with a lever.  Does not include the cap, gasket, filter or gigleur.   Cross-references: ...

This is an original Rocket E61 mushroom cylinder which found on newer Rocket Espresso machines and is an improvement over the traditional chrome ...

This is an original Rocket E61 mushroom which found on newer Rocket Espresso machines and is an improvement over the traditional chrome coated br...

E61 solenoid group head chrome mushroom.  For group heads without a lever only.  Does not include the cap, gasket, filter or gigleur.   Cross-ref...