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SP4221 - Sawyer Select S2 Purifier Foam & Bottle


The Sawyer Select Replacement Foam & Bottle are to be used with Sawyer's signature 0.1 micron absolute Hollow Fiber Membrane filter.  The combination of activated carbon and other proprietary ingredients are embedded inside the foam membrane which creates a usable surface area significantly larger than traditional block or granule filters.  This results in higher removal rates and faster flow rates with minimal dwell time.

The Select S2 systems reduce chemicals down to 0.5 parts per billion (up to 40 times lower than the EPA’s maximum recommended level) and reduce pesticides down to 0.01 parts per billion (400 times lower than the EPA’s maximum).

Select S2 filters out 99.99% of viruses.


  • Bacteria
  • Protozoa
  • Chemicals
  • Pesticides
  • IMPROVES Taste & Odor
  • 800 USES

Kit Includes:

  • Select Foam System with Silicone Bottle and Reducer Cap
  • VOLUME : 20 oz of water output
  • FIELD WEIGHT : 10 oz

Andrew is going on a paddle trip in Mexico to a region with a known Rotavirus outbreak. He taking the S2.

Jane is working at Dadaab refugee camp in Kenya and is worried about hepatitis E contamination so she is using the S2.


**Removal rates are voided if used with any hollow fiber membrane filter other than Sawyer's signature 0.1 micron absolute Hollow Fiber Membrane filter.