OKO Replacement Filter for Filtered Water Bottle

The OKO (Nano) water filters use the same filter media that is used in space exploration! It is the same Nano Filtration Technology that was co-developed by NASA for use on the International Space Station.  You can be confident in knowing that serious contaminants are being removed from your water wherever you are.

Whether camping, traveling, hiking, biking or in case of an emergency, or 72 hour kits, OKO filtered water bottles will allow you to drink fresh, clean water from most water sources worldwide. 

Different colors may be substituted based on inventory availability.