Alter Ego Frio - Outdoor



The Alter Ego filtration technology provides the greatest reduction per contaminant. The Outdoor filter carttridge removes everything up to 4 log (99.99%) from chlorine and heavy metals to agricultural run-off and industrial waste, including Giardia and Criptosporidium. Laboratory tested and field-proven over ten years, Alter Ego water filters can transform a questionable water source into clean-tasting, contaminant-free water. The Outdoor filter is perfect to fulfill all of your urban and backcountry needs in the Northern hemisphere where viruses and water-born pathogens are not a problem.  
  • Removes up to 99.9% of water contaminants including viruses and bacterias
  • Leaves no metallic after-taste
  • Vacuum insulated stainless steel bottle
  • Keeps water chilling cold up to 24h or steaming hot up to 6h
  • Brings clean water to the developing world through our partnership with ONE DROP
  • Multi-Patented Filtration Technology EPA/ANSI Certified & exceeds NSF standards 42 & 53 
  • 100% BPA Free recyclable and replaceable
  •  Filters are made in the USA


  • Design Country: Canada
  • Material: Pro Grade 18/8 Stainless Steel, PP#5, Food Grade Silicone
  • Dimensions: 21 oz - 2.5" x 3.2" x 10.5", 7oz
  • Comes with non-filter screw-top with carabiner for use without filtration


Current availability ships in 24-48 hours, other quantities ship in 24-48 hours

Alter Ego Frio - Outdoor9



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