1. Our water filtration system operates without electricity, with a flow rate of up to 1400 ml per minute, and can filter up to 3000 liters. It quickly turns rainwater, lake water, and river water into clean drinking water, providing pure water to meet various outdoor needs. 2. The portable water filtration system uses medical-grade 0.01 micron hollow fiber ultrafiltration membrane, capable of removing up to 99.99% of bacteria, microorganisms, particles, and sediments. Featuring high-quality coconut shell activated carbon, it effectively reduces contaminants and odors from natural water sources, helping make water safe to drink in outdoor environments. 3. After extended use, the filter element can be rinsed repeatedly with clean water to remove debris, helping restore filtration performance. 4. The water filter pump weighs approximately 254g and measures approximately 23.5 x 8.1 x 4.9cm. Its compact design fits easily into a backpack for convenient transport and reliable access to filtered water. 5. Lightweight, portable, and simple to use. Just submerge the intake tube in water and pump the handle to produce clean drinking water. Package includes: 1 x Water Purifier