Mini and lightweight straw filtration provides up to 1500 liters (396 gallons) of drinking water. 3-stage filtration system, including it can remove 99.999% of harmful substances (pollution, odor, chlorine and organic chemicals, etc.) and improve the taste. Providing the safest water in the worst environment. Ideal for recreation, hiking, camping. It is also your good companion for scouting, domestic and international travel, emergency preparedness. Features: 3-stage filtration, pre-filter, activated carbon filter and micron hollow fiber UF membrane. Ultrafiltration membrane with a diameter of 0.01 microns, can filter 99.9999% of harmful substances. It filters up to 1500 liters of contaminated water at an ultra-fast flow rate of 400 ml per minute. It weighs just 2.1 ounces and fits in your hand, pocket, gym bag, backpacks, survival packs, and purses. Ideal for hiking, camping, hunting, fishing, scouting, domestic and international travel, emergency preparedness and more. Specifications:Material: PlasticColor: Light Blue/Navy Blue (Optional)Speed: 400ml/minCapacity: 1500L Product Size: 31*160mm / 1.2*6.3inItem Weight: 60g / 2.1oz Packing List:1 * Filter1 * Soft Flask1 * Hose Extension1 * Backwash Filter5 * Filter Elements