• High Efficiency Filtration: The Burtrail gravity water filter it uses a gravity system and 0.01 micron water filter straw to purify water quality. Just hang the water bag up and let gravity do the work to make clean drinking water. The operation of this gravity-fed water filtration system is remarkably straightforward.
• Safety: The water filter straw is made up of hollow fiber ultrafiltration membrane, activated carbon fiber, and PP cotton, the gravity water bag is made of food-grade TPU material. The entire gravity water filtration system is made of food-grade materials,BPA Free
• Versatile Uses: The water filter straw can be screwed onto the included water pouch, most standard 28mm threaded water/soda bottles, or used to drink directly from water sources such as lakes, rivers, streams, and puddles.
• Multi Scene Application: As a necessity for outdoor water purification, the Burtrail gravity water filter system is applicable to camping, hiking, backpacking, emergency preparedness (rainstorms, floods, earthquakes, hurricane, etc.) to meet the emergency water demand in a variety of situations
• Portable and Lightweight: No cumbersome fittings and lightweight. Easy carrying gravity water filtration system when putting all the parts in the organizer bag

• Product Dimensions ‏ : ‎ 17 x 7 x 4 inches; 14.07 ounces
• Date First Available ‏ : ‎ December 7, 2023
• Manufacturer ‏ : ‎ Burtrail
• Country of Origin ‏ : ‎ China