1. Innovative Ultrafiltration Technology: Outdoor pump water filtration system uses 0.01 micron hollow fiber ultrafiltration membrane to remove up to 99.9 percent of microscopic materials, cysts, particulates, sediments. Made of high-quality coconut activated carbon fiber, it effectively eliminates harmful substances and turbidity in natural water, ensuring safe drinking even in the wild! 2. High Efficiency Advanced 4 Stage Filtration System: 1. High performance medical grade hollow fiber ultrafiltration membrane. 2. High quality activated carbon fiber, 3. Medical grade PP cotton. It's portable, the solution for water shortages in an emergency, and can be attached immediately. The nearest water source becomes safe drinking water. A must for travel, backpacking, camping and emergency kits! 4. Ultra-fast flow and fully compact: Ultra-fast flow up to 1400 ml per minute water filter up to 3000 liters on foot, then replace with reusable carbon filter. TIP: The life of this refill filter depends on the quality of the water, try using clean water to extend the life. A set of Purewell pumps can be used by multiple people at the same time. 5. Ergonomic Design: Special anti-slip rubber on the sides and bottom of the pump helps maintain a firm, sturdy surface during pump use and increases durability. The housing is made of food grade ABS material. The upgraded handle can be up to 15mm in diameter and will never break. The clear lid can be used as a drinking cup, and the top compass is also perfect for travel. Dimensions: 17 x 8 x 5 cm, comes with detailed instructions, tubes, hose clamps, advanced filtration system, carrying case. 6. Outdoor Survival Equipment: Our water purification system requires no electricity and quickly converts rainwater, lake and river water into clean and drinkable water. It can provide delicious pure water to meet your various outdoor water needs. All Products From Us Have Undergone Strict Quality Checks. if There Is Any Quality Problem Or You Are Not Satisfied With The Product contact Us. we Will Give You The Best Solution.