An older LG cartridge, still sold for side-by-side refrigerators from the mid-2000s. Stock is thin and the aftermarket share is high.
About this cartridge
The 5231JA2002A body is shorter than the LT600P and uses a narrower collar. Most listings that claim LT600P compatibility are wrong; the two cartridges differ at the neck, which is where leaks start.
Only NSF/ANSI 42 certification is claimed. Genuine LG stock has become intermittent, so most units sold today are third-party. If you buy third-party, look for an NSF 42 mark on the packaging rather than a "compatible with" claim alone.
Also sold as
These part numbers refer to the same physical cartridge. If the number on your old filter is in this list, this is the right replacement.
Frequently and incorrectly sold as an LT600P replacement.
Which refrigerators it fits
LG has not published a model-level list for this cartridge that we can verify, so we do not publish one either. The number on the cartridge you are removing is the reliable check.
Look up your refrigerator
Find the model sticker and search it here.
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Compare the cartridges in this housing family.
Open LGReplacing it
- Turn the old cartridge a quarter turn counter-clockwise and pull it straight out. Keep a towel under it — a few ounces of water will come out.
- Remove the protective cap from the new cartridge and check that the O-rings are seated flat in their grooves.
- Push it in and turn clockwise until it stops. Run two to three gallons through the dispenser to flush carbon fines, then reset the indicator.