- Compatibility: Designed for 51mm portafilter coffee machines, including popular models like Delonghi EC680, EC685, EC155, EC702, BREBES 250XL, Duo-Temp RM-800ESXL, Professional BES 820, BES830XL, Café Roma, and Krups MS-622248, XP5220, 5240, Barista, and Mr. Coffee. - 1 Cup Capacity: This filter holds approximately 10 grams of coffee powder, making it simple to brew a single, perfect cup of espresso with ease. - Espresso Accessories: The bottomless portafilter filter bowl is compatible with 51mm semi-automatic coffee machine models, enhancing your brewing experience. - High-Quality Material: Constructed from professional-grade stainless steel, this ultra-fine filter ensures that only the finest coffee flavors pass through, delivering an exceptional taste. - Practical Use Scenarios: 1. Ideal for home baristas looking to elevate their espresso-making skills, providing a clear view of the extraction process for perfecting techniques. 2. Perfect for coffee enthusiasts who appreciate the subtle nuances in flavor, allowing for a more refined brewing experience. 3. A great addition to coffee shops or cafes aiming to serve high-quality espresso with precision and style.