Brewing System Compatibility For use with Keurig 2.0 Series brewing systems. Keurig 2.0 K50, K300, K325, K350, K360, K375, K400, K425, K450, K460, K475, K500, K525, K550, K560, K575, K600, K625, K650, K660, and K675 series brewers. EASY INSTALLATION Not only will your BPA-and-DEHP-free starter kit improve your quality of beverage, it comes with no-brainer picture instructions for ultra-simple installation and use. Filtered Perfection CaroCoffee water filters are specifically engineered as a filtering mechanism leveraging a structured micro-mesh layers. Our filters also use ultra fine-grain charcoal, resulting in superb filtration. Environmentally Safe! We are dedicated to keeping the planet in top shape, so you can always count on our products using the safest and strongest materials that are as friendly to the environment as they fit your appliance! This filter is made of safe & strong environmentally safe and friendly materials.