MSR's GravityWorks™ 2 Liter System Bottle Kit allows for both filtering and backflushing water, pump-free. It takes the hassle out of getting clean water on any journey with less effort and in less time than other back country filtration systems. The GravityWorks™ 2.0L system holds up to four liters (depending on configuration), is lightweight and packs small, making it ideal for 1-4 people in the backcountry. The included Bottle Adapter lets you create your system using your own bottle or reservoir. Includes 2 L Dirty Collection Reservoir with quick release fitting, GravityWorks™ Filter Cartridge, Universal Bottle Adapter and hoses. Meets all EPA & NSF guidelines for the removal of Bacteria and Protozoa, including Giardia, Cryptosporidium, E. coli, Salmonella and Cholera.

• Two kits and a range of accessories allow both filtering and backflushing water
• Easy, Pump-free filtering
• Fast! 1.5-liters per minute
• Slimeguard™ antimicrobial-treated reservoir
• Ultra-Compact
• Backflushes in four seconds in any configuration you choose, maintaining optimal performance with no additional parts
• Proprietary Platy™ zip opening makes collecting water easy
• Effective: Meets all EPA & NSF guidelines for the removal of Bacteria and Protozoa, including Giardia, Cryptosporidium, E. coli, Salmonella and Cholera
• Adaptable to work with any hydration system
• Filters and backflushes in the field with just about any drink bottle made
• Modular universal bottle adapter lets you use the part that fits your preferred bottle
• Compatible with Nalgene, most Kleen Kanteen®, MSR®, Platy™ and more
• Includes: 2 L Dirty Collection Reservoir with quick release fitting, Gravityworks Filter Cartridge, Universal Bottle Adapter and hoses
• Not effective against viruses
• Filter media: Hollow Fiber
• Filter pore size.2
• Flow: (L/min) 1.5 liters per min
• Cartridge life: 1500 liters
• Size: Width 3 in ( 8 cm) / Length 7.4 in
• Weight: 11.5 oz