Look for the mark and you'll find a safer product.
A never-ending supply of drinking water is something that many of us take for granted. We simply turn on the tap and there it is. Do you know where your drinking water comes from or how its quality compares to other water sources around the country? Many people now use home water treatment devices, but how do you know which product is right for you?
NSF International has been involved in helping consumers answer these and many other questions about drinking water for more than a quarter century.