Frizzlife · Under-sink filter
Frizzlife MK99: what it removes and what it costs
Model: MK99 direct-connect under-sink filter (feeds existing faucet), cartridge FZ-2
The Frizzlife MK99 is certified (NSF/ANSI 42 and NSF/ANSI 53) to reduce lead, chlorine and cysts. For 2 people drinking and cooking with it, replacement filters cost about $40 a year.
3
certified reductions we track
2.5¢
filters per gallon at rated life
Price checked 2026-10-23. We may earn a commission.
What the Frizzlife MK99 removes
"Certified" means a certifier (NSF, WQA, IAPMO or CSA) lists this exact product for that reduction claim; the listing is linked. "Brand test only" means Frizzlife cites a lab report but no certifier lists the claim. See certified vs. tested.
| Contaminant | Status | Evidence |
|---|---|---|
| Lead | Certified | IAPMO R&T listing, NSF/ANSI 53 ("Lead") |
| Chlorine | Certified | IAPMO R&T listing, NSF/ANSI 42 ("Chlorine") |
| Cysts | Certified | IAPMO R&T listing, NSF/ANSI 53 ("Cyst") |
Not verified, either way (no certification or brand claim): PFAS, Chloramine, Fluoride, Arsenic, Nitrate, Chromium 6, Mercury, Microplastics, VOCs, TDS, Bacteria and viruses, Iron, Copper, Uranium, 1,4-dioxane.
What it costs to run
Yearly cost = replacements per year × filter price, for each filter it uses; a filter is replaced at its gallon rating or its month limit, whichever comes first. Water use: drinking and cooking water (0.28 gallons per person a day, EPA's average adult intake).
| Household | Gallons a year | Filters a year | Total a year | Per gallon |
|---|---|---|---|---|
| 1 person | 102 | $40 | $40 | 39¢ |
| 2 people | 204 | $40 | $40 | 20¢ |
| 4 people | 409 | $40 | $40 | 9.8¢ |
Per-gallon costs in the table are for real use, so they also count any filter replaced at its month limit before it reaches its gallon rating. At rated filter life alone, filters cost 2.5¢ a gallon (the figure at the top of this page).
Replacement filters
| Filter | Rated life (gallons) | Rated life (months) | Price |
|---|---|---|---|
| FZ-2 replacement cartridge | 800 Source noteCertified capacity per IAPMO listing; brand gives no gallons myplc.iapmo.org | 6 Source noteBrand: replace per 3-6 months (spec block elsewhere says 6-12 months) frizzlife.com | $19.99 Source noteSingle; 4-pack $69.85 frizzlife.com |
Specs
- Type
- Under-sink filter
- Price
- $70
Source note
Brand store price $69.99, no compare/sale price shown, seen 2026-10-23 frizzlife.com
- Installation
- DIY (under-sink or inline fittings)
- Flow rate
- 0.5 gal/min
Source note
Certified rated flow per IAPMO listing; brand page says 2 GPM @ 60 psi myplc.iapmo.org
- Needs power
- No
Where it ranks
Compare the Frizzlife MK99
Common questions
What does the Frizzlife MK99 remove?
The Frizzlife MK99 is certified (NSF/ANSI 42 and NSF/ANSI 53) to reduce lead, chlorine and cysts. For 2 people drinking and cooking with it, replacement filters cost about $40 a year.
Does the Frizzlife MK99 remove PFAS?
It has no certifier listing or brand claim for PFAS reduction.
How much does the Frizzlife MK99 cost to run?
About $40 a year for 2 people ($40 for 1, $40 for 4), counting replacement filters, for drinking and cooking water (0.28 gallons per person a day, EPA's average adult intake).
Data checked 2026-10-23. 102 filters tracked.