Baristapro 20g Precision Portafilter BasketThis electropolished portafilter basket features deburred edges to ensure you get a precise and consistent pull of your favorite espresso. There are exactly 661 double punched holes which are noticeably larger (0. 3 microns) and specifically designed to relieve back pressure, avoid channeling, and promote a smoother extraction. Holds 20g of Coffee For use in 58mm Portafilters