This highly durable water bottle was quickly given to help reduce the amount of plastic waste created from disposable water bottles. The filter is placed in the straw and must be replaced every two months, and though this is a painless process, care must be taken for the owner to not forget to replace it in the first place. Along with the one gallon/128 oz. water bottle (not pictured), this is likely one of the most useful purchases that was ever made by its owner.