Included is the two-step process of water treatment for drinking water: Drinking Water Germicidal Tablets for water treatment to make water bacteriologically suitable to drink, and PA Plus tablets to neutralize the after-taste and color.  At just . 21 oz this item is a great addition to your camping gear or emergency preparedness kit, these water treatment tablets are effective against bacteria and Giardia lamblia. 
  Travel Water Purification Tablets Make Contaminated Water Bacteriologically Suitable To Drink Within 35 Minutes
 Portable Water Treatment Is Effective Against Bacteria And Giardia Lamblia
 Lightweight and easy to travel with or fit into your backpack, weighing only . 21 oz
 Makes the water tasteless and colorless for safe drinking
 2-Pack, 50 count bottles to use as  back up to other water filtration options. 
 Features: Makes questionable water bacteriologically suitable to drink. 
  Volume Capacity: 1 oz
 Material: Chlorine
 Color: Multicolor
 Age Group: Adult
 Manufacturer: WISCONSIN PHARMACAL COMPANY LLC
 Manufacturer Part Number: 713232
 Model: 371239