Product review (5 stars): Great filter at a great price...
.Excellent filter with a really cool replacement device on the side of each filter, which you detach and affix to an included refrigerator magnet that when activated will display when it's time to replace the filter.  It's greatt to know that this filter does exactly what the OEM filter is designed to do but at 1/3 of the cost of having the refrigerator manufacturers name on the side of the filter.  Thank you "Waterdrop."