Product Description - Ef-Chlor 500 Mg Water Purification & Filtration Tablets Each Tablet Purifies 150 liters Water Helps Killing 99.99% Bacteria & Virus from the water Pack of 64 Tablets 3 Years Shelf Life Product origin - India Key Specifications/Special Features - Ef-Chlor Water purification tablets are safer than iodine tablets and leave virtually no taste in your water. Works in 30 minutes in most water..are effervescent tablets which kill micro-organisms in water to prevent cholera, typhoid, dysentery and other water borne disease Minimum Order Size and Packaging details - Minimum Order Size: 5000 packs Packing: Box of 8x8 Strips"