Product review (5 stars): Getting the right size is important!
These filters work just fine.  Although there can be a lot of confusion over which Air Filter will fit your refrigerator.  I have a Kenmore Elite w/bottom Freezer & Double-Doors on top w/Ice-Water dispenser on door, and trying to find the refrig Model# & matching it up to find the correct size Air Filter is not easy.  I never did find 'the useful Model#' of my Kenmore Elite, they post it in no readily observable place.  Great.  (Obviously the LG people make these Kenmore Elite's for Sears.)  But, I DID measure the old filter I was replacing, and made sure the filters I was buying were the same size.  (Many different air filter sizes are out there & it is easy to buy the wrong size!)  Also, each filter has printed on one side the word:  "Front", meaning the filter can inserted correctly or incorrectly.  Put the word 'Front' so it it facing the doors of the refrigerator, and the the taped-in paper-thin mesh part of the filter is nearest the intake fan.