18g standard version of portafilter holder (ridged - with a ridge on the wall). Dose: 17 - 19 gHeight: 24.2 mmOuter diameter: 60 mmTamper: 58.3 - 58.4 mm
Official filters used during the prestigious World Barista Championship in 2012, 2013, 2014 and 2015. They allow for uniform extraction due to their precise hole arrangement keeping + /- 1 mm distance. All the holes are inspected for shape, proper distribution and errors.
There are no reviews for this product.