Replacement filter for the Fill2Pure Stainless Steel Water Bottle 725ml. Filters and purifies 99.9999% of bacteria and viruses and 99.99% of parasites, chemicals, heavy metals and radiological contaminants.

Reduced flow through the filter straw indicates that the filter may need to be replaced, though quality of water will not be reduced. Not advised for children under the age of 8 years old or those who may be unable to drink through any straw.