The Keurig My K-Cup Universal Reusable Filter is a simple and convenient way to brew your favorite ground coffee using your Keurig coffee maker. Newly designed with Multi Stream Technology compatibility to extract full flavor and aroma every time you brew, it is the only Keurig-designed reusable coffee filter approved for use in all Keurig home coffee makers. So in addition to hundreds of delicious varieties of K-Cup pods, you can enjoy an even bigger assortment of freshly brewed coffee. Just fill with ground coffee to the MAX fill line, pop it into your Keurig coffee maker and in no time, you will be enjoying a cup of hot, delicious coffee. Brewing your favorites has never been easier and the removable lid makes filling and cleaning a snap.