Chlorinated disinfecting tablets with EPA registered kill claims. 120 tablets per bottle. Green Klean® Chlorinated Disinfecting Tablets are EPA registered Disinfectant, Sanitizer and Fungicide in one tablet. EPA registered to kill Norovirus, SARS-CoV-2, Hepatitis A, Hepatitis B, Hepatitis C, Aspergillus Fumigatus, C-diff, TB, and MRSA, GRSA, and many more pathogens. EPA# 71847-6-91038. Made in USA.