1The activated carbon hollow fiber ultrafiltration membrane has a large flow rate and can remove harmful substances and microorganisms in the water. 2Replaceable filter activated carbon designed for the water filter bottle can effectively reduce peculiar smell, does not contain chemical substances, and provides clean and safe drinking water. 3The plastic bottle is light and durable, the leakproof cover prevents water leakage, and the flexible mouthpiece is separated from the cup body for easy cleaning. 4With large capacity and the filtration life up to 1500 liters ( 396 gallons), it can meet your needs. 5D buckle for easy hanging and carrying, it is perfect for recreation, hiking, camping and outdoor emergency. Item Type: Filtered Water Bottle Water Bottle Material: PP + AS + for Tritan Filter Material: Ultrafiltration Membrane + PP Cotton + Carbon Particles + Filter Ball Product Weight: Approx. 290g / 10.2oz Filtration Life: 1500L Flow Rate: 550ML/min Applicable Water Source: River water, lake water, stream water, ground water, rain water, surface water and other fresh water without chemical pollution 1 xWaterBottle 1 x Manual 1 x D Buckle