A.O. Smith AO-US-100-R is a replacement filter used for The Clean Water Machine and The Clean Water Filter Fridge/Freezer (AO-CWM and AO-FF) water purifiers. For a continued contaminant removal and system performance, use only certified, genuine A. O. Smith replacement filters like AO-US-100-R.




Why Choose Our Product


    • Easy to install

    • NSF Certified to Standard 42, 53, 401 and P473

Height:5.5 in.
Width:2 in.
Depth:2 in.
Flow Rate:0.5 (Gallons per minute)
Min. Feed Temp:40° Fahrenheit
Max. Feed Temp:90° Fahrenheit
Product Weight:1 lb.
How It Works

It reduces up to 99% of 77 harmful contaminants including chlorine, chloramine, lead, mercury, BPA, PFOA/PFOS, sediment and cysts with its four filtration methods – Activated Carbon, Catalytic Carbon, Ion Exchange and Mechanical Filtration. It also improves the turbidity of the water.


The filter can last up to 6 months.