Food Grade: coffee screen filter made of food grade stainless steel material, environmental, durable, high temperature resistant, can be reused. High Filtration Quality: The coffee portafilter filter features filter fineness of 100m, good filtering effect, suitable for pressured water flow. Features: The coffee filter screen will disperse water evenly, increase the amount of solids that dissolve into the espresso, helping you get better extraction. Compatible: Espresso machine filter mesh addition to espresso brewing improve water distribution and eliminate channeling. Suitable for a variety of espresso machine. Reusable: The coffee filter is resistant to high temperature, simple, practical and reliable, suitable for household, kitchen and coffee bar. Specification: Material: Stainless Steel Size Chart: Optional Diameter:53.5mm/58.5mm/51mm Filter Accuracy:100um Package Includes: 1 Coffee Portafilter filter Screen