No matter where you are or the type of water available, the Grayl 24 Fl Oz GeoPress® Purifier - Covert Edition will supply you with clean and drinkable water in as little as eight seconds. This purifier bottle is easy to use and requires no set-up; simply fill the bottle with water either for drinking or cooking and simply press for filtration. This bottle will be a great addition to camping or backpacking and the sleek design means that this bottle is convenient and easy-to-store as well as safe and efficient.