Ideal for outdoor recreation, hiking, camping, scouting, domestic and international travel and emergency preparednessHigh performance filter fits in the palm of your hand; weighs just 2 ounces; 0.1 Micron absolute hollow fiber membrane inline filterAttaches to the drinking pouch, a standard disposable water bottle, a hydration pack, or use the straw to drink directly from a water sourceRemoves 99.99999% of all bacteria, such as salmonella, cholera and E.coli; and 99.9999% of all protozoa, such as giardia and cryptosporidiumFilter rated up to 100,000 gallons; includes 16-ounce reusable squeeze pouch, 7-inch drinking straw, and cleaning plunger"When shopping, please pay attention to the size and dimensions of the product to ensure that it meets your needs. In the title and , we have provided detailed information about the product, including its features and specificationsWe want you to be completely satisfied with your purchase, so if you have any questions or concerns, please don't hesitate to contact us. We are here to help and will do our best to assist you.Thank you for choosing our product. We hope you enjoy it!