A.O. Smith AO-US-RO-4000 4-Stage RO

Certifications

What it removes

Specifications

gpd

50

stages

4

fluoride pct

99

remineralizer

optional (MB model)

contaminants reduced

88

Also in Reverse Osmosis Systems

• Waterdrop G3P800 Tankless RO (800 GPD)$540–$999
• GE GXRV40TBN 5-Stage Reverse Osmosis$250–$350
• APEC RO-90 Ultimate 5-Stage RO (90 GPD)$220–$280
• Aquasana OptimH2O Reverse Osmosis + Claryum$350–$450
• Aquasana SmartFlow Reverse Osmosis$400–$550

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