GravityWorks 4L System Water Filter

The reviews keep coming and one thing is clear, the GravityWorks™ system is changing how people filter water. Delivering four liters of filtered water is just 2.5 minutes with no pumping, there's simply no easier or faster way to get safe water away from home. Ideal for bigger groups, the system's eight-liter capacity eliminates both the worry and hassle of keeping plenty of water around for anything you need.
• Fast! Filters four liters in 2.5 minutes.
• 8L capacity lets you easily transport and store water for groups.
• Backflushes in four seconds, maintaining optimal performance with no additional parts or tools required.
• Proprietary Platy™ zip opening collects water easily–even in challenging situations.
• Clean storage reservoir with shutoff clamp makes dispensing water a breeze.
• Create a custom system to meet your personal needs using our wide range of accessories.
• Effective: Meets all EPA & NSF guidelines for the removal of Bacteria and Protozoa, including Giardia, Cryptosporidium, E. coli, Salmonella and Cholera.

Specs
• Effective against protozoa: Yes
• Effective against bacteria: Yes
• Effective against viruses: No
• Effective against particulate: Yes
• Effective against chemicals/toxins: No
• Weight: 11.5 oz / 326 g
• Width: 3.25 in / 8 cm
• Length: 9.5 in / 24 cm
• Filter media: Hollow Fiber
• Filter pore: size .2 microns
• Flow (L/min): 1.75 liters per min
• Cartridge life: 1500 liters
• Field cleanable: Yes
• Water Bottle Adapter: No
• Cartridge replacement indicator: No