Under-sink replacement match
Frizzlife M-series replacement cartridge
Part FZ-2 for select Frizzlife filtration systems, including MK99, MK99-Black, MK99 NEW, MP99, MS99.

FZ-2 research summaryFrizzlife lists FZ-2 for these M-series direct-connect systems. Confirm the FZ-2 part number on the installed cartridge before ordering. Confirm current compatibility with the manufacturer before ordering.
Systems listed in our guide
FZ-2 is associated with the following Frizzlife systems in our research. Open the model page to see every replacement associated with that system, then confirm with the manufacturer.
Replacement schedule for FZ-2
Approximately every 6–12 months, depending on water quality and use. Treat this only as general product guidance and follow the system manual. Water quality, usage, pressure, and sediment can change actual filter life.
Reduced flow, unfamiliar taste or odor, or the system’s filter indicator may signal that replacement is due sooner than the stated maximum.
How to avoid ordering the wrong filter
- Confirm the system label includes the complete model, including every dash and suffix.
- Compare the installed part number with FZ-2.
- Confirm the cartridge head, locking tabs, and connection style.
- Do not rely on cartridge color, dimensions, or product photography alone.
Frizzlife lists FZ-2 for these M-series direct-connect systems. Confirm the FZ-2 part number on the installed cartridge before ordering.
After installing the replacement
Follow the system manual, restore the water supply slowly, inspect every connection for leaks, and flush the new filter using the manufacturer’s specified volume before drinking the water.
If flow remains low, water tastes unusual, or a leak appears, shut off the supply and recheck the cartridge alignment, seals, tubing, and complete part number. Seek qualified help when needed.
How this entry was researched
We used the named manufacturer’s replacement information as the primary compatibility reference. Retailer descriptions are a purchasing aid, not our source of truth, and this research does not guarantee fit.
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