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Base: Old stock EspressoParts S.S. 58mm convex
Modifications:
- Custom machined brass collar ring
- Base machined to "c-flat" hybrid shape
- Mirror polished base bottom surface
note: The new stock EPNW base are now 1/8" thinner. It's much lighter and does not have sufficient height to be used as dose/level indicator. No reponse from EPNW on old stock availability.
- Ben