British Berkefeld SS2 Ultra Sterasyl
A NSF-certified pitcher filter that is certified to reduce 3 contaminants.
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You want the cheapest way to start, with no installation — ideal for renters and small households.
Certified to reduce 3 contaminants.
Convenient, but the cost per gallon is higher than an under-sink system, and you'll replace the cartridge about 6× a year.
What is filter pitcher? A fill-and-pour jug with a replaceable carbon cartridge. The cheapest way to start — but certification varies enormously. Compare all filter types →
What it costs to own
| Upfront price | Check on Amazon → |
| Replacement filter (Ultra Sterasyl W9121226) | $168Buy refill → |
| Estimated yearly cost (filters, ~6×/yr) | ~$1,008/yr |
| True cost per gallon | — |
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 British Berkefeld SS2 Ultra Sterasyl 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 | Filter pitcher |
| Rated capacity | 1 gallons |
| Flow rate | N/A gpm |
| Replacement element | Ultra Sterasyl W9121226 |
| Installation | Fill and pour. No installation. |
Frequently asked
Is the British Berkefeld SS2 Ultra Sterasyl NSF certified?
Yes — the British Berkefeld SS2 Ultra Sterasyl 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).
What does the British Berkefeld SS2 Ultra Sterasyl remove?
It is certified to reduce 3 contaminants: Cryptosporidium, Giardia, Turbidity.
How often do you replace the pitcher filter?
A pitcher filter like this is typically replaced about 6 times a year (replacement element Ultra Sterasyl W9121226). Replace on schedule — a spent cartridge stops reducing contaminants.
Compare similar pitcher filters
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.