Replacement filter · under sink water filter
Frizzlife SK99 Under-Sink Filter: replacement cartridge
Here is the exact cartridge the Frizzlife SK99 Under-Sink Filter takes, its current price, how often to replace it, and what that works out to - ~$34/yr (about 1,100 gal) on our engine's math, not a guess.
What it costs to keep running
- Annual filter cost
- $34/yr
- Cost per gallon
- $0.031
This is the same figure our scoring engine uses on the Frizzlife SK99 Under-Sink Filter scorecard, computed from each cartridge's price and rated gallons across every stage. Prices last checked 2026-06-01.
The cartridge it takes
M3005 Annual Replacement Filter
$49.99- Replace
- rated 1,600 gallons
- Price checked
- 2026-06-01
This model takes the brand cartridge; we found no confirmed generic equivalent, so buy the part that matches the number above.
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Prices and part numbers are the ones we last verified from the manufacturer or a retailer listing on the dates shown; check the current price at the link before reordering. The annual figure is our engine's computation from that data, not a statement of what you will pay.
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