Grayl 24oz GeoPress® Purifier - CovertGeoPress Purifier Bottle Fast. Easy. Anywhere. 24 oz of Clean, Purified Water in Just 8 Seconds The GeoPress Purifier Bottle delivers lightning fast, no hassle water purification in the field, on the trail, or anywhere your journey takes you. With a bold, low profile design and zero setup required, this bottle gives you 24 ounces of safe, great tasting water in only 8 secondsno batteries, chemicals, or waiting around. No matter where you roam, you can