Portafilter strainer in standard version (ridged - groove on wall) 15 grams.
Dose: 14 - 16 g
Height: 22 mm
Outer diameter: 60 mm
Tamper: 58.3 - 58.4 mm
The official filters used at the prestigious World Barista Championship in 2012, 2013, 2014 and 2015. They ensure even extraction thanks to precise hole placement with +/- 1 mm spacing. All holes are checked for shape, good placement and errors