eSpring Model 100188CH 100188CH
A NSF-certified filter filter that is certified to reduce 11 contaminants, including lead and PFAS at about 22.6¢ per gallon.
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A certified drinking-water treatment unit.
Certified to reduce Lead, PFAS, PFOA — the contaminants that matter most for health.
Like most carbon filters, it does not remove fluoride — only reverse osmosis does that.
What it costs to own
| Upfront price | Check on Amazon → |
| Replacement filter (100186CH,K, T TH, M, J, ME) | $297.64Buy refill → |
| Estimated yearly cost (filters, ~1.5×/yr) | ~$446/yr |
| True cost per gallon | 22.6¢ |
Cost per gallon and yearly cost are our estimates from the rated capacity and current prices. The filter only works if you replace it on schedule.
What it's certified to remove
Certification is per-contaminant: the eSpring Model 100188CH 100188CH is credited only for the contaminants listed here, verified by NSF. It does not imply removal of anything not listed.
✓ Verify this certification on the official NSF listing →
Full specifications
| Certified by | NSF |
| NSF/ANSI standards | 42 — reduces taste, odor, and chlorine (aesthetic standard) · 53 — certified for health contaminants such as lead, VOCs, and cysts · 401 — reduces emerging contaminants such as pharmaceuticals and pesticides |
| Filter type | Water filter |
| Rated capacity | 1,320 gallons |
| Flow rate | .9 gpm |
| Replacement element | 100186CH,K, T TH, M, J, ME |
| Installation | See manufacturer instructions. |
Frequently asked
Is the eSpring Model 100188CH 100188CH NSF certified?
Yes — the eSpring Model 100188CH 100188CH is listed in the NSF certified-product database under NSF/ANSI standards 42, 53, 401. That means an independent body verified its claims (not just "tested to" a standard).
Does the eSpring Model 100188CH 100188CH remove lead?
Yes. It is certified to reduce Lead, PFAS, PFOA, PFOS, plus 7 other contaminants. Certification is per-contaminant, so it is only credited for what is on its listed claim set.
What does the eSpring Model 100188CH 100188CH remove?
It is certified to reduce 11 contaminants: Asbestos, Chlorine / chloramine, Lead, Mercury, Microcystin, PFAS, PFOA, PFOS, Radon, Total Trihalomethanes, and more.
How much does the eSpring Model 100188CH 100188CH cost per gallon?
About 22.6¢ per gallon, based on its rated capacity of 1,320 gallons and current price.
How often do you replace the filter filter?
A filter filter like this is typically replaced about 2 time a year (replacement element 100186CH,K, T TH, M, J, ME). Replace on schedule — a spent cartridge stops reducing contaminants.
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Source: NSF public certification listing. Specs and certified claims are from the official listing; cost figures are our estimates. Some links are affiliate links — see our disclosure.