Designed to improve and control manually the flow rate in your E61 grouphead for profiling the espresso brew extraction.
Turning the ball shaped lever control valve during extraction controls the flow rate of the water going through the group. The user can manually control the pre-infusion pressure and length following control of the espresso extraction flow rate up to the recommended rate of 9 Bars or more...
Includes: 1x display pressure gauge up to 16 bar, 1x flow regulator, 2x valve handles, few seals and tape.
This part is designed to work with all espresso machines with E61 Grouphead. User installation at own risk releasing manufacturer or seller liability.
* Assembly type parts such as this item are non returnable - no exception.