MetaCups 2.0 Reusable K Cups Coffee Filters for Keurig 2.0 Brewers K200, K300, K400, K500 Series, and Tea K-cup Pods. Bonus Free Keurig Coffee Recipes Guide Plus. COMPATIBLE WITH 1.0 AND KEURIG 2.0 COFFEE BREWERS: MetaCups reusable K Cups work in all 1.0 and Keurig 2.0 brewers; no physical modification required. Our coffee filter for Keurig K cup brewers saves you up to 80% and is eco-friendly too. SAVE MONEY & THE ENVIRONMENT: Save up to 80% with the K-cup. Plus no more Kcups or pods to throw away. USE ANY COFFEE FOR THE FRESHEST BREW: Use fresh ground gourmet coffee in your K-Cup coffee filters to brew a strong or less strong (you control the amount of coffee), delicious cup of coffee in the convenience of your Keurig 2.0 brewing system. All this in addition to the traditional Keurig coffee K cups when you are in a hurry. BACKED BY THE INDUSTRY BEST WARRANTY: MetaCups has a No-Hassle, Free Replacement, Lifetime Guarantee. If you ever experience a problem with your Keurig 2.0 reusable coffee filter we will replace it, free of charge.