The OEM Keurig Replacement Water Tank Reservoir is specifically designed for the Keurig K-Duo Essentials 5000 coffee maker. It has a capacity of 12 cups and is made of lightweight, easy-to-clean plastic material. This clear water tank comes with a lid for easy replacement and maintenance, ensuring your coffee maker continues to function at its best. Perfect for keeping your Keurig machine hydrated and ready to brew delicious coffee every morning. Seller to ship best method