Product review (3 stars): Frustrating to install
I found the LG instruction manual poorly written as it did not have the parts numbers in the section on replacing the air filter in the refrigerator. I could not find the parts number correlated with the model number on the LG site. Maybe it's there, but not easily found. I really appreciated the comments from customers on this site, because their answers led me to purchase this filter which does fit. However, the filter has "front" marked on two ends. This was not clear to me or my husband (who is a former carpenter and theater technician who usually can figure stuff out). Again, the manual useless. We finally decided to have this side face the front of the frig?  The replacement light still blinks wildly when we first shut the refrig's doors.  Then, they go off. There must be a way to reset them, but again,manual useless. So, this part seems fine. However, LG is not giving adequate consumer support with their publications. I will have to do an online search to see how to reset the flashing lights. Just a lot of work and very frustrating. So only three stars. Oh, and this little thing is expensive to replace by my standards.