Alter Ego

The Alter Ego is your outdoor companion. It follows you wherever you go with filtered water.

Laboratory tested and field-proven over ten years, Alter Ego water filters can transform any water source into clean-tasting and contaminant-free water. This Outdoor filter is perfect to fulfill all of your urban and hiking/camping needs.


Availability: In stock


  • Isothermal bottle: keeps water and ice cold up to 24h or steaming hot up to 10h
  • The OUTDOOR filter cartridge removes up to 99.99% of contaminants.
  • Straw filtration technology allows for simple and immediate use
  • Filters heavy metals, agricultural run off, industrial waste as well as Giardia and Criptosporidium
  • Also filters river, lake and tap water
  • Filters up to 750L per filter cartridge
  • Vacuum insulated stainless steel bottle
  • Straw filter assembly can be used on its own as a survival hydration method in streams, rivers and lakes with minimal weight and size
  • Bottle can also be used for tea and coffee
  • Leaves no after-taste
  • Laboratory tested and field-proven over 10 years
  • Waterproof and easy to wash
  • 100% BPA Free
  • Recyclable and replaceable
  • Filters are made in the USA

The Alter Ego filtration technology provides the highest reduction of contaminant’s rate. The Outdoor filter cartridge removes everything  (up to 99.99%) from chlorine, heavy metals, agricultural run-off and industrial waste to micro-organisms like Giardia and Criptosporidium.

  • Pro Grade 18/8 Stainless Steel
  • PP#5, Food Grade Silicone
  • 620ml – 5 x 7.5 x 25
Weight0.6 kg
Dimensions5.1 × 7.5 × 25.5 cm


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