High-capacity, pump-free water filtration for groups and basecamps. Filtering up to 1.75 liters a minute without any pumping, the high-capacity GravityWorks Water Filter System filter is one of the easiest and fastest ways to get filtered water in the backcountry. With two different sizes—6.0L & 4.0L—the GravityWorks is ideal for bigger backpacking groups or basecamps. Offering an 8 or 12 liter total capacity, either model easily supplies filtered water for drinking, washing up, cooking, and cleaning. Simplify your water collection with the GravityWorks system and spend more time enjoying your group. No pumping: Just fill the dirty reservoir, hang it, and let gravity do the hard work—yep, filtering water can be as easy as fill, hang, relax. Fast: Filters up to 1.75 liters per minute; microfilter lifetime up to 1,500 liters of water. Effective: Every microfilter is individually tested to ensure it meets all EPA & NSF guidelines for the removal of 99.9999% of bacteria and 99.9% of protozoa*. Light & Compact: System weighs 11.5 oz. (326 g) and stows smaller than most 1L bottles. Group-ready: 8 or 12 liter (4.0L/6.0L filtered + 4.0L/6.0L unfiltered) 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: Clean reservoir (4.0L or 6.0L), Dirty reservoir (4.0L or 6.0L), Hollow Fiber microfilter, hoses, shutoff clamp, and storage sack. *This includes Giardia, Cryptosporidium, E. coli, Salmonella and Cholera. WARNING: Can expose you to styrene, which is known to the State of California to cause cancer. Learn more about Prop 65 SKU 03135 Weight: 11.5 oz Width: 3.25 in Length: 9.5 in Effective against bacteria: Yes Effective against chemicals/toxins: No Effective against particulate: Yes Effective against protozoa: Yes Effective against viruses: No Filter media Hollow Fiber Filter pore size (microns) 0.2 Flow (L/min) 1.75 liters per minute Cartridge life 1500 Liters Field Cleanable Yes Water Bottle Adapter No Cartridge Replacement Indicator No Material(s) Polyethylene Country of Origin Made in U.S.A. of U.S. and Imported Materials
