The Platypus GravityWorks Water Filter System 4 L offers a convenient, high-capacity solution for backcountry water purification, ideal for group camping, basecamps, or emergency preparedness. Utilizing gravity for filtration, it eliminates the need for pumping, delivering clean water efficiently. The system includes two reservoirs—one for unfiltered water and one for clean water—connected by a hollow-fiber microfilter that removes 99.9999% of bacteria and 99.9% of protozoa, including Giardia and Cryptosporidium. With a flow rate of up to 1.75 liters per minute, it can filter 4 liters of water in approximately 2.5 minutes. The filter cartridge has a lifespan of up to 1,500 liters and can be easily backflushed in the field to maintain performance. Lightweight and compact, the Platypus GravityWorks Water Filter system is an efficient and reliable choice for ensuring safe drinking water in the outdoors

• Pump-free gravity filtration
  
• Lightweight and compact design for easy transport
  
• Includes 4-liter dirty and clean water reservoirs with hang loops
  
• Meets EPA and NSF guidelines for removal of bacteria and protozoa, Giardia, Cryptosporidium, E. coli, Salmonella and Cholera.
• High flow rate of up to 1.75 liters per minute
  
• Filter cartridge life up to 1,500 liters
  
• Field-maintainable with quick backflushing
  
• Filter Media: Hollow fiber
  
• Filter Pore Size: 0.2 microns
  
• Flow Rate: Up to 1.75 liters per minute
  
• Filter Life: Up to 1,500 liters
  
• Weight: Approximately 11.5 oz
  
• Capacity: 4.0 liters
  
• Dimensions 9.5 x 3.25 in
• Material: Polyethylene