Highlights: Placement : Under sink Brand compatibility : Watts Reduces cysts, lead, chromium, cadmium, fluoride, barium, copper, selenium, radium 226/228, and turbidity Filter replacement recommended every 2-5 years Warning: This product can expose you to chemicals including 1,3-Butadiene, which is [are] known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.