This water filtering system helps remove particles and contaminants, reduce turbidity, and provide clean, safe drinking water. It is an ideal choice for outdoor activities, emergency preparedness, camping, hiking, backpacking, etc. Features: Hollow fiber UF membrane removes 99.9999% of the smallest particles and contaminants. BPA-free and chemical-free, filter accuracy up to 0.01 microns, reduce turbidity and improve taste. Long service life, purify up to 4,000 liters of water. Soft c ap protects the straw from dust and stains. Includes straw water filter, squeeze water pannier, silicone hose, hanging strap. Comes with a drawstring bag for easy storage and carrying. Ideal for outdoor activities, emergency preparedness, camping, hiking, backpacking, etc. Specifications:Material: Carbon Fiber + Hollow Fiber UF Membrane + Silicone Color: Blue/Army Green (Optional)Filter Capacity: 4,000L Filter Accuracy: 0.01 Micron Water Flow: 200ml/min Dimension: Approx. 32*175mm / 1.2 * 6.9in Product Weight: 47g / 1.6oz Water Bag: 26.5*12cm / 10.4*4.7inPackage Size: 20*14*3.8cm / 7.9*5.5*1.5inPackage Weight: 155g / 5.5oz Package List:1 * Water Filter Straw1 * Silicone Hose1 * Hanging Strap1 * Squeeze Water Bag1 * Water Filter Bag1 * Water Filter Bag Storage1 * User Manual