Key benefits Consistent espresso shots: The singledose hopper enables precise grinding, supporting repeatable shot quality and full flavor in every pull. Easy maintenance: Silicone bellows simplify cleaning of the grinder while helping to preserve bean freshness and reduce residue buildup. Broad compatibility: Designed for 9015A and 9012 grinders, with compatibility to many other brands, increasing versatility and upgrade options. Durable construction: The hopper and bellows are made from sturdy materials built for daily use and longterm reliability. Practical design: A straightforward modification kit that installs easily and supports a convenient singledose workflow. What you get and compatibility Replacement/modification kit compatible with 9015A and 9012 grinders. Broad compatibility with a wide range of other brands, expanding usability across different machines. Components built for regular use, designed to withstand daily grinding tasks. 23 use scenarios Home espresso routine: Use the singledose hopper to deliver consistent grind size for each shot, helping you achieve repeatable flavor at home without overloading the grinder. Small cafe or office: Upgrade lightweight grinders with this kit to improve usability and maintenance between uses, while maintaining compatibility with multiple brands. Routine cleaning and maintenance day: Utilize the silicone bellows to clean internal pathways more easily, reducing downtime and preserving bean freshness during routine upkeep.