Overhead and Underground Water Tank Cleaning and Purification Tablets, Kills 99.99% Bacteria and Viruses from the water, 1 Tablet purifies 500 L water - Pack of 50 Tablets

Ef-Chlor 1.67gm Water Purification Tablets for Overhead & Underground Tank Water 1-Tablet purifies 500 litres Water-Jar of 50 Tablets Combo Pack of 2 jar (100 Tablets purify 50000 litres Water)

Safe Chlor Tab 1000 | Chlorine Tablets for Water Tanks of 1000 Ltrs, Overhead & Underground Water Tanks; Water Purification Tablets Kills Bacteria and Prevents Algae; Pack of 50 Tablets for 50000 Ltrs

Ef-Chlor 167 mg Water Purification Tablets - 100 Pack NaDCC - Rapidly Effective Against Bacteria, Viruses, and Spores - Purifies 20 Liters of Drinking Water per Tablet