Bullet Points:1Innovative Ultrafiltration Technology: The outdoor pump water filtration system uses a 0.01 micron medical grade hollow fiber ultrafiltration membrane to remove up to 99.99% of tiny substances, particles, and sediments. Composed of high-quality coconut activated carbon fiber, it effectively removes harmful substances and peculiar smells in natural water, making it safe to drink even in the wild 2Outdoor Equipment: Our water filtration system works without electricity, with a fast flow rate of up to 1400 ml per minute, and the hiking water filtration pump can filter up to 3000 liters. Quickly convert rainwater, lake water and river water into clean drinking water. It can provide delicious pure water to meet your various outdoor water needs.3Daily Maintenance: After a period of use, the filter element can be opened, rinsed repeatedly with clean water to remove stains, and the filter will be restored to a new state 4Personal Portable Filter Pump: The outdoor water purifier pump has a net weight of about 255g and a size of about 3.15 X 1.92 X 6.69 inches. It can be easily put into a backpack so that you can carry it with you and continue to supply water.5Easy To Operate: Lightweight and portable, easy to use, easy to carry. Just dip the straw into the water, and then pull the handle up and down to get clean and drinkable water.