Nuova Simonelli Group Head Dispersion Plate - 5mm common-universal-simonelli-parts/program-mac-optima-solenoid-group and it accepts two o-rings

and it accepts two o-rings

it’s NSF Standard 2 approved and compact enough for easy installation in tight spaces

Lay out and label the twelve included parts before disassembly so each new component goes back in the correct position — group head internals are easy to mix up during a full rebuild

The Kyoto slow-drip method extracts with incredible delicacy

Nuova Simonelli Group Head Dispersion Plate - 5mm common-universal-simonelli-parts/program-mac-optima-solenoid-group and it accepts two o-ringsThis is the thickest version. This is the preferred version in Europe. It allows for the use of taller (triple) baskets, while still only using 14 grams of coffee. There is a 3 mm as well as a 4 mm thick version available.