? UPGRADE TO AN ALL-IN-ONE FLASK - With a 26 oz. This Vacuum Insulated Stainless Steel Bottle Flask Alkaline Water Filter Bottle Flask is the world's first bottle flask that PURIFIES ordinary water up to 99.99% contaminant-free water. Then, Blu CONVERTS it into alkaline water. Its revolutionary, MADE IN THE USA, IAMF technology-powered replaceable filter is tested to NSF/ANSI 42 53 international standards, tested in over 35 countries, and is manufactured in an ISO 14000 certified facility. | | ? INSTANT FILTRATION AND ALKALIZATION - Blu Water Purification Bottle or Filter Water Bottle with a pH filter produces up to 200 gallons of great-tasting, fresh, filtered water while removing up to 99.99% of all four areas of contaminants (Aesthetic, Dissolved Solids, Chemical, and even Radiological) while retaining the trace nutrients and mineral value. This water bottle with a filter also simultaneously alkalizes the water up to a pH of 9.5 to give you crisp alkaline water instantly.