Product review (5 stars): It fits. It has carbon. What more can you ask?
It fits. It's got carbon inside. There's not a lot more to say, really -- this is a fine and inexpensive replacement for your LG's filter. Now, if your refrigerator smells so bad that you need more details about the quality of the air filter (e.g., average surface area per grain of carbon), you might want to consider a lifestyle change... or just cleaning out the fridge.

On the other hand, if you have some kind of onion-based dish in there for a weekend, or you accidentally forget that half-eaten cheese sandwich in the back, this will do a good job of keeping you alive when you open the door. Which is all you should really expect.