3 ms·The filter looks a lot coarser on that one though, fwiwby malermeister 5y agoThe filter looks a lot coarser on that one though, fwiwGroxx 5y agoyeah, and perforated metal tea filters are all dramatically worse in my experience. truly awful flow rates, you don't get very good brews.ericd 5y agoThanks for the feedback, you two! Know of any that are all-metal, but not perforated?