Simply one of the safest water treatment solution on the market. Aerobic 07 removes all harmful bacteria, parasites and other waterborne bacteria and leaves the good stuff untouched. Treats 55 gallons per ounce. That's nearly 2.5 55 gallon barrels that will not need treatment for 5 years.  Aerobic 07 kills E. coli, Salmonella, typherimurium, Legionella pneumophilia, Salmonella choleraesuis, Giardia lamlia, Staphylococcus aureus and Streptococcus faecium and much more!