Mazzer ZM Commercial Filter Grinder - Black cups-and-porcelain/coffee It's the current 2 o-ring

It's the current 2 o-ring design that replaces the older 3 o-ring version

5 bar on the brew scale and 0-16 bar on the boiler scale

Mounting screws not included

the face changes from green to orange when the group is activated

Mazzer ZM Commercial Filter Grinder - Black cups-and-porcelain/coffee It's the current 2 o-ringDesigned for specialty coffee lovers and the Mazzer ZM is a WCE qualified coffee grinder and features cutting edge technology and completely new functionalities. Grind for batch, brew, and pour overs in an easy to program, clean, and maintenance coffee grinder. ZM Features The ZM features flat burrs specifically designed and tested to grind for both espresso with 151B (spare part) and filter coffee with 151F (factory fitted) or 151G (spare part). ZMs