3M Aqua-Pure 3MDW301-F Under Sink System with Faucet review
By Daryna Klochko · Published · Specs checked Oct 15, 2026 · 
Scores 9.25/10, tied for 26th of the 32 under-sink filters we track. At $294 it costs more than the category median of $199.50. NSF lists it for Chlorine, Chloramine, Lead, Cysts, VOCs, Microplastics, one of 29 under-sink filters out of 32 with a certifier listing for a health claim.
Running costs matter: about $278 a year in cartridges, 1.7 times the category median
- Price
- $294
- Certified for
- Lead · Cysts · VOCs +7
- Flow
- 0.75 gpm
- Cartridge life
- 1,000 gal
- Cost per year
- $278
- Warranty
- 1 year
Certification
Listed by NSF under NSF/ANSI 42 · 53 · 401 for Chlorine, Chloramine, Lead, Cysts, VOCs, Microplastics, checked Oct 15, 2026. Search the NSF listings
- Chlorine
- Chloramine
- Lead
- Cysts
- VOCs
- Microplastics
The contaminants or other substances removed or reduced by this water treatment device are not necessarily in your water. Listing checked on Oct 15, 2026. What a listing means and what it doesn't
Specs and sources
Checked Oct 15, 2026 · source under each valueFiltration
Cartridges and install
Buying
Warranty, returns and shipping
1 year (cartridge excluded).
30 days (Amazon.com).
Warranty: 1 year (cartridge excluded). Returns: 30 days (Amazon.com). Shipping: not stated by the brand. Source: 3M Aqua-Pure data sheet, checked Oct 15, 2026.
Source: 3M Aqua-Pure data sheet, checked Oct 15, 2026.
Compared with similar under-sink filters
All 32 under-sink filters →| Model | Price | Certified for | Cost per year | Warranty | Score | Where to buy |
|---|---|---|---|---|---|---|
| Aquasana Claryum Direct Connect | $249.99 | Lead · Cysts +5 | $184 | 1 year limited | 9.5/10 | Check price → |
| Brio 3-Stage Under Sink Filtration System FUS300R | $249.99 | Lead · Cysts +1 | $280 | 1 year (limited) | 9.25/10 | Check price → |
| Pentair FreshPoint F2000 Under Counter Filter | $279.55 | Lead · Cysts +4 | $87 | 1 year | 9.75/10 | Check price → |
| 3M Aqua-Pure 3MDW301-F Under Sink System with FaucetTHIS MODEL | $294 | Lead · Cysts +8 | $278 | 1 year | 9.25/10 | |
| Kohler Aquifer Double Cartridge (K-77686) | $300 | Lead · Cysts +5 | $300 | 5 years limited | 9.25/10 | Check price → |
What owners say
Checked Oct 15, 2026Only 13 ratings on Amazon, too few to call. In our score this is 1.75 of 2 points. How we score
Store ratings change over time; the date shows when we checked.
