… Means Drinking Water. Potable aqua iodine – based Germicidal tablets are intended for emergency disinfection of drinking water; they make water bacteriologically suitable for drinking. For short term use; not to be used on a continuous basis – one bottle treats up to 50 quarts of water.
Also available is their 2 step treatment, P.A. Plus. Step 1 is the potable aqua. Step 2 is neutralizing tablets to remove the iodine taste and color. One package treats up to 50 quarts.