• No pumping: Just fill the dirty reservoir, hang it, and let gravity do the hard work.
• Fast: Filters up to 1.75 liters per minute; filter lifetime up to 1,500 liters of water.
• Effective: Meets all EPA & NSF guidelines for the removal of 99.9999% of bacteria and 99.9% of protozoa*.
• Ultralight & Compact: System weighs 10.75 oz. (305 g) and stows smaller than most 1L bottles.
• Group-ready: 8 liter (4.0L filtered + 4.0L dirty) total capacity easily supplies water for groups.
• Field-cleanable: Microfilter can be easily backflushed in 4 seconds to maintain filter performance.
• Hollow Fiber Advantage: Hundreds of tiny, hollow fibers, enable the microfilter to filter water faster than traditional filter media.
• Easy collecting & dispensing: Collecting water is easy—simply open the top, scoop water, and close; control delivery of filtered water with hose shutoff clamp.

Comes with: 4.0L Dirty reservoir, 4.0L Clean reservoir, Hollow Fiber microfilter, hoses, shutoff clamp, and storage sack.

*This includes Giardia, Cryptosporidium, E. coli, Salmonella and Cholera.