Potable Aqua Plus Water Purification Tablets are emergency drinking water germicidal tablets with PA Plus to remove iodine taste and color. A two-stage process makes questionable water bacteriologically safe to drink and taste good. Potable Aqua water purification technology is proven effective against Giardia Lamblia when used as directed. After treating water with Potable Aqua, simply drop 12 tablets of the neutralizer into the water and wait 35 minutes for clear, great-tasting water. Ideal for camping, hiking and travel. Contains a 50-count bottle of PA Plus along with a 50-count bottle of Potable Aqua. Manufacturer model #: 371239. Ideal for camping, hiking and travel Iodine-based tablets Treats up to 25 qt. of water