The Lead Free* Law

On January 4, 2014 the "Reduction of Lead in Drinking Water Act," more commonly known as the Lead Free law, went into effect. The new national mandate requires that every pipe, fixture, and fitting used to convey water for potable use contain less than 0.25% of lead by weight.

Identify Lead Free* Products




Watts has made it simple for you to quickly and easily identify Lead Free products and part numbers. We use a comprehensive set of identifiers to make compliance easier and help eliminate mistakes.

Look for LEAD FREE on labels, boxes and tags, and/or LF markings on the body of many of our Lead Free products.

The LF prefix will also appear as part of our part numbers when a standard version is also offered.


  • Traditional Product: 25AUB-Z3
  • Lead Free* Product: LF25AUB-Z3



*The wetted surface of our Lead Free products contacted by consumable water contains less than 0.25% of lead by weight.