You’ll read a lot of hate it text on here, but if they would have taken the time, they wouldn’t have bought this particular item. This mesh filter is to replace the Keurig Duo only. It will NOT work in any other brand of Keurig, period. I tried it in my friends Keurig coffee maker, which is not a Duo, and we had a mess. So buy it for Keurig Duo only and you can save yourself a lot of aggravation. Or the flip side, do it your way, and complain.