Fox Outdoor Chlor-Floc Water Purification . 57-740. S. Military. NSN# 6850-01-582-5270. Eliminates Giardia most bacteria viruses other harmful micro organisms and sediment. 30 packets per box. Box treats 8 gallons.3 year shelf life. Specifications for Fox Outdoor Chlor-Floc Water Purification: Manufacturer: Fox Outdoor Age Group: Adults Features of Fox Outdoor Chlor-Floc Water Purification: Eliminates: Giardia most bacteria viruses and other harmful micro organisms Clarifies and disinfects naturally polluted water Package of 30 tablets. Package Contents: Fox Outdoor Chlor-Floc Water Purification Fox Outdoor 57-740: Chlor-Floc Water Purification