It is designed for use with ZeroWater pitchers to remove lead. Filter features 5-stage filter cartridges to detach all dissolved solids in tap water and offers an crisp, clean refreshing water. 5-stage filtration cartridges. Removes virtually all dissolved solids in tap water. They are certified to remove lead. Meets the FDA definition for purified bottle water. 1-year mfr. warranty. Length: 7"diameter: 3.8"