Best Water Filter for St. Louis
Data-matched filtration recommendation based on St. Louis's water quality analysis · Utility: Missouri American Water.
Choosing the right water filter for St. Louis, Missouri starts with understanding what's actually in your tap water. Our recommendation is data-matched to St. Louis's specific contaminant profile, which draws from Missouri and Mississippi Rivers and is managed by Missouri American Water.
Below you'll find St. Louis's water quality snapshot, our top filter pick, per-contaminant recommendations, and the data behind why we recommend it.
St. Louis Water Snapshot
Why St. Louis Needs a Water Filter
Contaminant Matching
Filters selected based on St. Louis's specific detected contaminants.
Health Protection
Certified filtration removes lead, PFAS, chlorine byproducts, and other contaminants.
Home Protection
Reduces scale, sediment, and chemical damage to pipes and appliances.
Recommended Water Filter for St. Louis
Our full filter recommendation is in the city water report.
View St. Louis Water Report →Based on water quality analysis, a filtration system matched to local contaminants is recommended for St. Louis.
Why This Filter for St. Louis?
- Addresses water quality concerns (Purity Score: 64/100)
- Certified for PFAS reduction (2.7 ppt detected)
- Reduces lead exposure (5.5 ppb detected)
- Addresses hard water (7.5 GPG)
- Matched to St. Louis's specific water composition
- Improves taste, odor, and safety for drinking and cooking
Filter by Contaminant: St. Louis
iSpring RCC7 Reverse Osmosis
Removes up to 99% of PFAS, PFOA, and PFOS compounds through multi-stage reverse osmosis filtration.
Waterdrop 10UA Under Sink Water Filter System
NSF/ANSI 53 certified for lead reduction. Removes 99.3% of lead at the point of use.
AFWFilters 5600sxt 48,000 Grain Softener
Ion exchange softener eliminates calcium and magnesium that cause scale buildup, pipe damage, and dry skin.
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Also Consider for St. Louis
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Water Quality Data: St. Louis, MO
| Parameter | Value | EPA Standard | Status |
|---|---|---|---|
| Purity Score | 64/100 | Fair | |
| Lead (Pb) | 5.5 ppb | 15 ppb | Elevated |
| Water Hardness | 7.5 GPG | Hard | |
| Total Dissolved Solids | 265 ppm | 500 ppm | Normal |
| Water Source | Missouri and Mississippi Rivers | ||
| Utility Provider | Missouri American Water |
More About St. Louis Water
Frequently Asked Questions
What filter do I need in St. Louis MO?
St. Louis has contaminant concerns AND hard water. An RO handles drinking water while a softener protects plumbing.
What are the main water problems in St. Louis?
St. Louis water issues: PFAS, Lead, Hard Water. Score: 64/100.
Protect Your Water in St. Louis
A quality water filter is the best match for St. Louis's water profile.