Why is there an EPA registration number on some home water treatment units? Doesn this mean it is EPA approved?
The number on some units is actually a pesticide registration number, required by the Federal Insecticide, Fungicide, and Rodenticide Act. Because some units make claims of killing bacteria or other microbes, they must receive approval from the EPA that they pose no health risk to the consumer. The registration number is not an endorsement of the product.
