Air Flow Coffee Dosing Ring Size:58mm you can build your own

you can build your own knock tube at what every height you want

Up to 3 Times Faster Filtration Compared to standard V60 paper filters

8 and 10 cup

and over time they have built their volumes and their quality and now the 1200 members produce specialty grade organic coffee and own their own warehouses and processing plant

Tube dimensions to complete the set are:

Air Flow Coffee Dosing Ring Size:58mm you can build your ownKeep every dose clean and precise. Made from durable stainless steel with a walnut wood base, the Airflow Dosing Ring securely attaches magnetically to your portafilterensuring mess free distribution of coffee grounds. Available in 51mm, 53mm, and 58mm sizes.