• Very Versatile: Besides the gravity water filter system, the included filter can be used in many different ways. Use as a personal water filter, or add a 29.5-inch extension tube for more distance drinking. Even connect onto a water bottle.
• Long Lifespan and Speedy Treatment Time: Our water purifier camping has a lifespan of 5,000 liters (1320gallons), for a family of four uses up to 3.5 years. With a flow rate of 27 liters per hour, it won’t slow you down when you’re trying to make miles.
• 0.1-micron Ultrafiltration: Our water filter camping made up of 0.1-micron hollow fiber ultrafiltration membrane, 5-micron coconut shell GAC filter, and 0.2-micron PP fiber filter. Effectively eliminates up to 99.9999% of Escherichia coli CICC 10389. （Note: Performance data based on independent laboratory testing. Claims apply only to organisms listed.）  
• Easy to Use: Just hang on a tree with the tree strap, hands-free filtration, enjoy effort-free (no pumping, no squeezing, barely any waiting) filtered water within minutes.
• Very Lightweight: Gravity water filter weighs just 2.8 ounces and can be completely rolled up to save space in your backpack. With 3L TPU gravity-fed bag can provide you enough reliable fresh water. Ideal for backpacking, camping, or just keeping on hand for emergencies.

Package list:

1x Gravity Water Filter Straw,3L Kits