- Replacement Carbon & Claryum® filters for: The Clean Water Filter with RO Boost (AO-US-RO-4000).
- Use only certified, genuine A. O. Smith replacement filters for continued contaminant removal and system performance.
- Replacements made easy – no plumber necessary.
- Reduces up to 99% of 88 harmful contaminants including lead, mercury, asbestos, pesticides, pharmaceuticals, chlorine, and more.
- Claryum filtration reduces harmful contaminants – those you can see, smell and taste, and those you can’t – for optimally clean water.
- Carbon & Claryum filters last 6 months or 365 gallons.
- NSF certified to standards 42, 53, 401 + P473.
- Includes one Claryum Filter and one Carbon Filter.