These replacement filters may be small, but they are mighty. Made to fit all Brita water bottles, these filters with the best of them. We recommend changing your filter about every two months. Use Brita for better water, a better world, and better value. Reusable product – Brita is designed to be reusable and reduce the use of single-use plastic water bottles. They reduce chlorine taste and odor, as well as capture certain contaminants such as zinc, copper and cadmium.