Marzocco Nanotech Coated Shower Screen ø 57mm External diameter 57mm, internal hole diameter 7mm, depth 5.8mm, 112 holes d.2.0mm. Suitable for La Marzocco Linea, FB70, FB80, GB5, GS3 also espresso machines from Aurora Brugnetti, Ascaso, Slayer and Synesso. The nanotech treatment is an anti-adhesion treatment that increases resistance to corrosion; suitable for food contact. Nanotech is a universal coating for all materials certified for food contact according to NSF-51 and MOCA 1935/04. ISO 10993-5: 2009 non-cytotoxic certificate.