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Water filter
AO Smith Under Sink Water Filter System - AO-US-200
by AO Smith
86
Filter score
out of 100
Undersink6 months lifespan
View product- Lab Tested
- Yes
- Categories
- 15
- Certifications
- 2
- Technologies
- 5
About
The AO Smith AO-US-200 is a solid, certified, and efficient solution for under-sink water filtration, perfect for removing a wide variety of harmful contaminants while preserving beneficial minerals and ensuring ease of installation.
Score breakdown
How this filter earned its 86/100.
- Verified contaminant removal · 15 Of 15 Categories With Measured Removal55.9/70
- Lab data indexed · Indexed15/15
- Certified by a recognized body · WQA, NSF10/10
- Filter technology disclosed · Activated Carbon, Catalytic Carbon, Ion-Exchange Resin, Sediment, Ultra-Fine Mesh Screen5/5
Lab reports
Independent testing data backing this product's score.
Filtration technologies
Activated CarbonCatalytic carbonIon-Exchange ResinSedimentUltra-Fine Mesh Screen
Certifications
WQANSF
Contaminant removal
- Chemical Disinfectants96%
- Fluoride45%
- Heavy Metals56%
- Haloacetic Acids98%
- Trihalomethanes23%
- Herbicides98%
- Microplastics99%
- Nanoplastics99%
- Semi-Volatile Compounds98%
- Volatile Organic Compounds (VOCs)99%
- Pesticides98%
- Perfluorinated Chemicals (PFAS)95%
- Pharmaceuticals30%
- Radiological Elements40%
- Microbiologicals99%