Disinfection Byproduct
Disinfection Byproducts (group) in your water
Health effects
Disinfection byproducts form whenever chlorine or similar disinfectants react with natural organic matter in water. The main regulated groups are trihalomethanes and haloacetic acids, both tied to long-term cancer risk. They are an unavoidable trade-off of disinfecting water, but levels can be reduced.
The guideline vs. the legal limit
The federal legal limit is the maximum allowed by law. The EWG health guideline is what independent scientists consider safe — it is often far stricter.
Health guideline (EWG)
No health guideline set
Federal legal limit (MCL)
No federal limit set
Source: EWG Tap Water Database & EPA MCLs · 2026
What removes Disinfection Byproducts (group)
Pentair / Pelican · Whole-House Filtration
Pentair Pelican PC600 Whole House Filter
- stages
- 2
- flow gpm
- 8
- media life
- 5yr / 600k gal
Pentair / Pelican · Whole-House Filtration
Pentair Pelican PC1000 Whole House Filter
- stages
- 2
- flow gpm
- 10
- media life
- 5yr / 1M gal
Aquasana · Whole-House Filtration
Aquasana Rhino Whole House Filter (1,000,000 gal)
- stages
- 4
- flow gpm
- 7
- filter life
- 10yr / 1M gal
Waterdrop · Reverse Osmosis Systems
Waterdrop G3P800 Tankless RO (800 GPD)
- gpd
- 800
- stages
- 7
- tankless
- true
GE Appliances (Haier) · Reverse Osmosis Systems
GE GXRV40TBN 5-Stage Reverse Osmosis
- gpd
- 14.76
- stages
- 5
- antimicrobial
- true
A.O. Smith · Reverse Osmosis Systems
A.O. Smith AO-US-RO-4000 4-Stage RO
- gpd
- 50
- stages
- 4
- fluoride pct
- 99
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Is Disinfection Byproducts (group) in your water?
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