Back to top

Please select a color/color.


  • Iodine tablets make most water bacteriologically suitable for drinking, while neutralizing tablets neutralize taste, odor and color
  • Each bottle includes 50 tablets; 2 iodine tablets treat 1 quart of water
  • Each iodine tablet contains 20mg of tetraglycine hydroperiodide, which releases 8 ppm of titratable iodine
  • Potable Aqua tablets require that you wait at least 30 min. before drinking the treated water
  • Unopened bottles of Potable Aqua tablets should remain effective up to 4 years when maintained under controlled temperatures between 60 and 86°F
  • An opened bottle of Potable Aqua should not be kept for more than 1 year
  • Caution: Iodine tablets are not effective against Cryptosporidium; Potable Aqua Chlorine Dioxide tablets (sold separately) are effective against Cryptosporidium

Made in USA.

Caution: Iodine is not effective against Cryptosporidium.

View all Potable Aqua Chemical Water Treatments

REI membership


Best Use Backpacking
Filter Type Tablet
Active Ingredient(s) Tetraglycine hydroperiodide
Removes/Destroys Protozoa, Bacteria, and Viruses
Output 25 quarts
Weight 6 ounces
  • bvseo_sdk, java_sdk, bvseo-4.0.0
  • CLOUD, getReviews, 55ms
  • bvseo-msg: The resource to the URL or file is currently unavailable.;

Will these tablets kill viruses?  Can they be used with chlorine tablets to eliminate cryptosporidium?

Asked by: Oldeguy
These tablets destroy viruses but are not absolutely effective against Cryptosporidium. We suggest Dioxide Tablets to kill all viruses and hardshell micro-organisms:
Answered by: REIservice
Date published: 2017-03-18
  • y_2017, m_5, d_19, h_6CST
  • bvseo_bulk, prod_bvqa, vn_bulk_1.0.0-hotfix-1
  • cp_1, bvpage1
  • co_hasquestionsanswers, tq_1
  • loc_en_US, sid_406032, prod, sort_[SortEntry(order=NUM_ANSWERS, direction=DESCENDING)]
  • clientName_rei-inc
  • bvseo_sdk, java_sdk, bvseo-4.0.0
  • CLOUD, getContent, 39ms