A revolutionary two stage process that makes water bacteriologically safe to drink and taste good. After treating water with Potable Aqua, simply drop 1-2 tablets of the neutralizer into the water and wait 3-5 minutes for clear, great tasting water. It greatly reduces the iodine taste and the discoloration caused by the iodine. Packaged in a 50 count bottle along with a 50 count bottle of Potable Aqua on a blister card. Treats up to 50 quarts. REMINDER: Use Potable Aqua first to make the water safe to drink. The neutralizer will not eliminate harmful bacteria or viruses.