Kills 99.9% of bacteria in toilet bowl water after each flush. Sanitizes and cleans for over 3 months. Whitening and brightening action. Kills odor-causing bacteria. Kills 99.9% of: Escherichia coil in 1 minute, Staphylococcus aureus (staph) in 1 minute, salmonella enterica (salmonella) in 1 minute, enterococcus faecalis (strep) in 1 minute. Great quality. Guaranteed. Return the package for replacement or money back. 1-877-506-2267 or visit us online at walmart.com. walmart.com. how2recycle.info.