Keep your stored water fresh-tasting and odor-free! Add Camco's drinking water freshener every time you add water to your tank to remove stale tastes and odors, plus eliminate the taste of plastic, metal, or sulfur. The water freshener also prevents the growth of algae and slime from forming in your water tanks. Just one ounce helps remove bad smells and tastes from 20 gallons of water. Can be used for both hot and cold water. 16 oz. Prevents the buildup of slime and algae Can be used for both hot and cold water | TastePURE Drinking Water Freshener