UltraPress now has a boost! All bottles ship with a One-Way Valve pre-installed making it possible to add electrolytes, drink mixes and other flavored liquids directly into an UltraPress.

the 16.9oz UltraPress Purifier Bottle fits into any pack pocket (or cup holder), requires zero setup, and makes safe, great tasting drinking water in a mere 10 seconds (3L/min). On-the-go filtration and purification for the hiker, backpacker, camper, emergency prepper or global traveler seeking fast-flow purified water for chugging, filling hydration reservoirs, or cooking. SimplyFill. Press. Drink.