Product review (1 stars): NOT for LG 5231JA2002A
Did not fit my LG fridge that needed replacement filter 5231JA2002A. This filter looked identical to what I needed except for a small lip (like a bubbled out ring in the plastic) all the way around the top edge.  The pictures show it as flat, but what I got was not flat around the top.  If it didn't have that "bubbled-out lip" around the top edge, I believe it would have fit (and worked) fine.