The AO Smith 2-Stage Water Filter Replacements AO-US-200-R 960784 is a set of two sealed water filters designed for household use. Made by Filter, these filters are compatible with Claryum models and are capable of removing contaminants such as asbestos, lead, chlorine taste & odor, mercury, and chemicals. Manufactured in the United States, these filters provide clean and safe water for your kitchen, dining, and bar needs.