Complete Group Seal Kit for La Marzocco KB90 Maintain peak performance and espresso quality with this genuine La Marzocco KB90 group seal kit. Designed specifically for KB90 commercial espresso machines, this comprehensive maintenance kit contains all essential seals and gaskets needed for proper group head servicing. What's Included Group head gasket Portafilter seal Shower screen seal All necessary O-rings and components Why Replace Your Group Seals? Regular seal replacement prevents leaks, maintains optimal brewing pressure, and ensures consistent extraction for perfect espresso shots. Professional baristas recommend replacing group seals every 6-12 months depending on usage. Key Benefits Genuine La Marzocco parts for guaranteed compatibility Prevents pressure loss and water leaks Maintains espresso quality and consistency Easy installation with standard tools Fast Australia-wide delivery Compatible with all La Marzocco KB90 models. Keep your commercial espresso machine operating at its best with regular maintenance using authentic replacement parts.