Certified filtration: The pitcher is NSF 42 certified for the reduction of chlorine, taste and odor. It is also NSF 372 certified for lead-free material. Using 7-stage water filter technology, this water filter pitcher can effectively reduce arsenic, fluoride, lead, and other contaminants in water. Drink more water everyday with Waterdrop. 3-pack replacement filters are available for purchase! (search model: WD-PF-01A Plus).