55 mm O.D. for "single" shot extraction from a 44 mm "ESE" pod, not for commercial equipment. Fits smaller unit portafilters, such as the Ascaso, Dal Tio, Didesse, the Nuova Simonelli Jazz, the La Pavoni Microbar, RDL machines, Saeco and Spinel units, as well as the Astoria "Prima" or Wega "Starlet" model machines set up for pods. 266 holes.
WARNING: This product can expose you to chemicals including lead, which are known to the State of California to cause cancer, birth defects, or other reproductive harm. For more information, go to www.p65warnings.ca.gov.