AO Smith AO-US-200-R The Clean Water Filter Replacements Claryum Sealed New

Advanced Filtration – Reduces up to 99% of 77 harmful contaminants including lead, mercury, asbestos, pesticides, pharmaceuticals, chlorine, and more. Use only certified, genuine A. O. Smith replacement filters for continued contaminant removal and system performance. NSF Certified to standards 42, 53, and 401 +P473.