While a portafilter can be used in the portafilter holder on your grinder, a dosing cup makes the transfer of coffee grinds to your portafilter cleaning and also helps with the redistribution of grinds.
Dosing cup made from food-safe materials.
Specifications Dimensions: 8.2cm x 7.5cm (LxH) Weight: 108.1g
Can be used for: DF64 / DF64P / DF64E / DF83
Should be able to fit any portafilter holder that can hold a 58mm portafilter, but we are only able to confirm for the grinder models above.