Replacement Carbon & Claryum filters for: The Clean Water Filter with RO Boost (AO-US-RO-4000). Not Compatible with SmartFlow Systems.
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 - Use only certified, genuine A. O. Smith replacement filters for continued contaminant removal and system performance.
IAPMO certified to NSF/ANSI Standards 42, 53, and 401.
The AO-4000-CARBON is an official replacement filter set designed for the A.O. Smith 4-Stage Reverse Osmosis (AO-US-RO-4000) system. The dual-pack includes one carbon block filter and one Claryum selective filter, which collectively reduce up to 99% of 88 contaminants including lead, mercury, asbestos, pesticides, and pharmaceuticals.
