A.O. Smith Clean Water System Remineralizer and Set Under Sink Replacement Filter

Maximum Filtration - reduces up to 99% of 89 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)

Remineralizer returns the healthy minerals lost in the Reverse Osmosis process - such as calcium, magnesium and potassium

Use only certified, genuine A O Smith replacement filters for continued contaminant removal and system performance

Claryum filter technology is engineered to reduce harmful contaminants – those you can see, smell and taste, and those you can’t – providing you with optimally clean water

WQA certified to NSF/ANSI standards 42, 53, 58 and 401

Replacements made easy - no plumber necessary

Includes one Reverse Osmosis Membrane and one Remineralizer

Replace filters every 12 months