High performance purifier protects against 99.999% of viruses (including Rotavirus, Hepatitis A), 99.999999% of bacteria (including E. coli, Salmonella), 99.999% of parasites (including Giardia, Cryptosporidium), 99.999% of microplastics, dirt, sand, and cloudiness. Filters up to 3.1 gallons (12 L) per hour, perfect for groups, camping, and survival. Convenient roll-bag and shoulder strap for easy transport and flexibility to hang virtually anywhere; built-in backwashing system. 

• Membrane ultrafilter purifies water and protects against 99.999% of viruses, 99.999999% of bacteria, 99.999% of parasites, 99.999% of microplastics, dirt, sand, and cloudiness; 0.02 micron pore size
• Meets NSF/ANSI P231 standard for reduction of viruses, bacteria and parasites
• Membrane ultrafilter lasts up to 4,755 gal |18,000 L
• Weight: 1.17 lbs | 0.53kg
• 12L hose length: 27.6 in | 701 mm
• 12L bag size: 23.8 x 6.7 in | 60.5 x 17 cm
• Filter size: 12.6 in | 320 mm
• Max flow rate: 3.1 gal/hr | 12 L/hr
• Food grade materials (US FDA 21 CFR standards)
• BPA-free
• Bag is made of durable, TPU laminated nylon
• Replaceable filter & parts
• Includes: 12-liter gravity bag with quick-connect hose, water purification cartridge and built-in backwashing system