WaterChef SF-7C Shower Filter System
Listings checked Oct. 16, 2026
Maker’s list price
$146
as of Oct. 16, 2026
Each replacement, at list price
- Shower filter cartridge (RCSF-7)
- $42
Five years, 40 gallons of showers a day
$524
0.7¢ per gallon
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List price from the maker’s site, checked Oct. 16, 2026. Prices change; the maker’s page is the final word.
What the listings say
| Standard | Certifier | Claims | Listing |
|---|---|---|---|
| NSF/ANSI 177 | IAPMO | Free Available Chlorine | Read the listing checked Oct. 16, 2026 |
Certified for, and claimed
Certified, by a listing
Claimed by the maker only
None recorded.
What it costs over five years
40 gallons of showers a day, EPA WaterSense’s figure for the average family, all through this one shower. Installation not included.
| Item | Replaced | Count | Amount |
|---|---|---|---|
| System, with first media | — | 1 | $146 |
| Shower filter cartridge (RCSF-7) | Every 6 monthsmonth rating | 9 | $378 |
Five-year total$524
Per gallon0.7¢
Worth knowing
IAPMO lists it under Water Safety Corporation, WaterChef’s maker, with the low-flow SF-7C-ECO. WaterChef rates the RCSF-7 for 10,000 gallons or about 6 months. Prices are the $145.99 and $41.99 retail prices of the chrome model and its cartridge; WaterChef showed $109.95 and $31.95. Brushed nickel is also $145.99, and white $135.99.
Other shower filters
- American Standard Spectra Filtered 4-Spray Hand Shower Rail System (9238759)177
- T3 Source Showerhead (73311)177
- Speakman Hotel Pure Filtered Shower Head (S-2005-HBF)177
- AquaTru Shower (ATSH01)177
- Speakman Neo Handheld Filtered Showerhead (VSF-5000-E2)177
- Rainshower Restore Shower Filter (CQ-1000)177
- Jolie Filtered Showerhead177
- Weddell Duo Shower Filter (WD-100)177
Where to go next
- Every shower filter, rankedBy what their listings cover, then what each costs over five years.The best shower filters, ranked
- Your household’s costThe five-year cost at your own household size and daily use.Run it for your household
- NSF/ANSI 177, decodedWhat a NSF/ANSI 177 listing does and does not promise.About NSF/ANSI 177
- Every filter, checkedSide by side, with what each one can prove.All filters