<h3>Key features</h3><ul> <li>Charcoal Water Filter Replacement for Keurig Coffee Makers. Removes chlorine, calcium and water impurities when brewing with your Keurig coffee maker.</li> <li>To fully enjoy the aroma and delicious taste of brewed coffee, you need to change your water filter regularly.</li> <li>Compatible with your single cup home brewing system such as the Keurig Elite B40 or the Keurig Classic B44.</li> <li>For best results replace your water filter cartridge every 2 months or 60 tank refills.</li> <li>The kit includes 24 (twenty-four) water filter cartridge refills for your convenience.</li> </ul><p>These Water Filter Cartridge Replacements Compatible with Keurig Coffee Machines are made to work with your single cup home brewing system such as the Keurig Elite B40 or the Keurig Classic B44. Package includes: 24 (twenty-four) water filter cartridge refills. These cartridges will vastly improve the quality of water you use for better-tasting coffee. Simply place the filter refill into the water filter assembly and insert the water reservoir. Your system will be ready in just seconds. Change them as needed and enjoy delicious flavor every time you brew a cup of your favorite Keurig coffee. The filters are compact enough to store easily even in smaller spaces. Keep your brewing system in top shape by using the Keurig water filter cartridges. For best results replace your water filter cartridge every 2 months or 60 tank refills. For use exclusively with Keurig Single Cup Reservoir Brewing Systems purchased after August 2007. This is not compatible with the Mini Brewing System, Mini Plus Brewing System, the B145 Office PRO Brewing System, or the Rivo System.</p><p>Free shipping on orders $50+. 30-day hassle-free returns.</p>