Features： 1、3-stage filtration, pre-filter, activated carbon and microns hollow fibre UF membrane. 2、0.01 microns hollow fibre ultra-filtration membrane, it can filter 99.9999% harmful substances. 3、Filters up to 1500 litres of contaminated water at an ultra-fast flow rate of 400 ml per minute. 4、It weights just 2.1 oz and fits in your palm, pocket, gym bag, backpacks, survival packs and purses. 5、Ideal for hiking, camping, hunting, fishing, scouting, domestic and international travel, emergency preparedness and more. Specification： The mini and lightweight straw filtration provides up to 1500 liters (396 gallons) of drinking water. 3-Stage filtration system including can remove 99.999% of harmful substances (pollution, odor, chlorine and organic chemicals, etc.) and improve the taste. Ensuring the safest water in the worst environments. Ideal for recreation, hiking, camping. It’s also your good companion for scouting, domestic and international travel, emergency preparedness. Features: 3-stage filtration, pre-filter, activated carbon and microns hollow fibre UF membrane. 0.01 microns hollow fibre ultra-filtration membrane, it can filter 99.9999% harmful substances. Filters up to 1500 litres of contaminated water at an ultra-fast rate of 400 ml per minute. It weights just 2.1 oz and fits in your palm, 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: Plastic Color: Light blue / Dark blue ( optional ) Speed: 400 ml / min Capacity: 1500L Product Size: 31 * 160 mm / 1.2 * 6.3 in Product Weight: 60 g / 2.1 oz Packing List: 1 * Filter 1 * Soft Flask 1 * Extension hose 1 * Back-flushing Filter 5 * Filter Elements Package List： 1 * Filter 1 * Soft Flask 1 * Extension hose 1 * Back-flushing Filter 5 * Filter Elements