Product review (4 stars): It works, will probably have to buy more in the future cause they don't last too long.
It works.  It's the 8th one I've had to get.  They have a limited lifespan, but they're cheaper than paying a repairman.  They're sold in singles, so if you need a pair, you have to buy 2.  Also, in my model refrigerator, I had to shave off one of the depression pieces to make it fit.  The repairman that replaced it the last time did it on that one as well so I know it's standard procedure.