This camping gravity water filter straw is made up of a Coarse Pre-filter, 0.1-micron hollow fiber ultrafiltration membrane, 5-micron coconut shell GAC filter and 0.2-micron PP fiber filter that removes heavy metal, chlorine, odors, micro-plastics, etc. Best portable backpacking gravity water filters with 3L extra-large capacity TPU water storage bag can filter up to 5,000 liters/1321 gallons, 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. 3 in 1 hiking water filter straw, filter added a 29.5-inch extension tube that allows drinking rivers, ponds, streams, or any water source directly. Use as a personal water filter, or add a 29.5-inch extension tube for more distance drinking. Even connect onto a water bottle. 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. The gravity water filter can meet the all-day demand for outdoor water drinking.
