Product review (5 stars): Works just fine!
Installed and works just fine, like the original LG part.  Compared the specs and the reviews and the filtering specs are nearly identical. (I'm not worried about 2-3% differences.) Other reviewers have indicated the filter is slightly smaller in diameter, this is true, but the length is correct and it installs with no problems.

It claims a 600 gallon lifespan (twice the LG) but I question whether the fridge can sense that or just lights up the replacement indicator after 300 gallons of use anyway.  Time will tell... I typically got about 6 months from the LG filters.