A.O. Smith Carbon Block Under Sink Replacement Filter

Maximum Filtration - Reduces up to 99% of 88 harmful contaminants including lead, mercury, asbestos, pesticides, pharmaceuticals, chlorine, and more Replacement filters for the A. O. Smith Clean Water Reverse Osmosis System with Remineralization (AO-US-RO-4000) Use only certified, genuine A. O. Smith replacement filters for continued contaminant removal and system performance Claryum® Filtration Technology is obsessively engineered, combined filtration technology that reduces harmful contaminants – those you can see, smell and taste, and those you can’t –providing you with optimally clean water Filters are NSF Certified to Standards 42, 53, and 401 +P473 Replacements made easy - no plumber necessary Includes one Claryum® Filter and one Carbon Filter Replace filters every 6 months