[Good fit] This filter is the right fit for Waterdrop electirc water filter pitcher ????-????????/????????/????????/??????????/??????????. [Quality filter material] The 5 m quality carbon block filter material used in this Waterdrop filter has high accuracy, excellent adsorption and zero carbon leakage. It has been certified by IAPMO against NSF/ANSI 401, 53, 42 and 372 standards, efficiently reducing impurities to improve the purity and taste of your drinking water. [Simple filter replacement] You need no tools to replace the filter. Replacing the filter after filtering 200 gallons of water or 3 months of use (whichever comes first) is recommended for optimal purity and taste. [Safety performance] The Waterdrop filter prioritizes details and safety. Made from BPA-free materials, it guarantees clean and safe water with every drop. [Eco-friendly choice] Reduce your plastic waste and contribute to sustainability with our filter! By replacing approximately 1,600 plastic water bottles (16.9oz) per filter, you can make a significant impact.