State-of-the-art water purification system in an easy-to-use, high-volume gravity system; ideal for travel, backcountry and emergency use Advanced, hollow-fiber technology removes viruses (99.99%), bacteria (99.9999%), protozoa (99.9%), sediment and microplastics from “worst-case” water conditions Activated carbon reduces chemicals, unpleasant tastes and odors Fast and easy to fill: Simply hang the 10-liter reservoir and purify up to 1L in 2 minutes based on an optimal hang height of 6 ft above the clean water output Includes: two-stage purifier, 10L reservoir, universal bottle adapter, hoses and zippered carry case; lifetime capacity: up to 3000L; measures 12.5 x 4 inches, packs to 8.2 x 4.7 and weighs 18.7 ounces; made in the USA