Frizzlife SK99 3-Stage Under Sink Water Filter review
By Daryna Klochko · Published · Specs checked Oct 15, 2026 · 
Scores 10/10, tied for 1st of the 32 under-sink filters we track. At $125.99 it costs less than the category median of $199.50. Frizzlife also claims Chloramine, VOCs, PFOA/PFOS, which are not in the listing. Buyers on Amazon rate it 4.5/5 across 5,207 ratings.
Buyers who go by ratings: 4.5/5 from 5,207 on Amazon
- Price
- $125.99
- Certified for
- Lead · Cysts · Chlorine
- Flow
- 1.5 gpm
- Cartridge life
- 945 gal
- Cost per year
- $95
- Warranty
- 1 year
Certification
Listed by IAPMO under NSF/ANSI 42 · 53 for Chlorine, Lead, Cysts, checked Oct 15, 2026. Frizzlife also claims 3 more substances that are not in the listing. Search the IAPMO listings
- Chlorine
- Lead
- Cysts
Frizzlife also claims Chloramine, VOCs, PFOA/PFOS: brand claims, not in a certifier listing.
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; “150% coverage” if registered (brand).
30 days, unused and in original packaging (frizzlife.com).
Warranty: 1 year; “150% coverage” if registered (brand). Returns: 30 days, unused and in original packaging (frizzlife.com). Shipping: not stated by the brand. Source: frizzlife.com, checked Oct 15, 2026.
Source: frizzlife.com, 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 |
|---|---|---|---|---|---|---|
| Doulton QT Under Counter System (Ultracarb) | $119.99 | Lead · Cysts +2 | $42 | 3 years (limited) | 9.5/10 | Check price → |
| A. O. Smith AO-MF-ADV Advanced Direct Connect Faucet Filter | $119.99 | Lead · Cysts +5 | $187 | 1 year limited | 9.75/10 | Check price → |
| Frizzlife SK99 3-Stage Under Sink Water FilterTHIS MODEL | $125.99 | Lead · Cysts +1 | $95 | 1 year | 10/10 | Check price → |
| Epic Water Filters Smart Shield Under Sink | $129 | Lead · Cysts +3 | $115 | 3 years limited | 9.75/10 | Check price → |
| Pentair FreshPoint Easy Flow Under Counter Filter | $139.99 | Lead · Cysts +2 | $87 | 1 year | 9.75/10 | Check price → |
What owners say
Checked Oct 15, 20264.5/5 from 5,207 ratings on Amazon. In our score this is 2 of 2 points. How we score
- Taste425 mentions398 positive27 negative
- Value for money234 mentions206 positive28 negative
- Water quality201 mentions169 positive32 negative
- Leakage144 mentions51 positive93 negative
- Included accessories87 mentions78 positive9 negative
- Instructions80 mentions71 positive9 negative
Store ratings change over time; the date shows when we checked.