NaDCC 167mg tablets kill 100% of bacteria and every known virus.
Each tablet purifies 13 gallons of clear water or 6.6 gallons of contaminated water (lake or river)
Packed in foil strips of 10 tablets and carton of 10 strips (100 Tablets)
Ef-Chlor brand sold on Amazon for $69.88 per carton. Offered to fellow preppers at 2.00 over my cost of 14.90 ($16.90) plus 3.10 shipping ($20.00 Total) Purifies 660-1300 gallons.
Don't have a web site. Questions/More info at [email protected]