I have a keureg 200. These work perfectly! I had no idea the pre made didn't degrade and end up just filling up the landfills. Perfect if you want to reduce your carbon imprint. Much more practical as far as cost and you can pick your own coffee to put into the baskets. I usually wait until the grounds dry out and then I empty the grounds into the trash which with a little tap they come out quite easily! Would definitely recommend! It's perfect that they come with 4 as well!