Product review (5 stars): LG LT700P Refrigerator Water Filter
This is an exact replacement for the Kenmore version. The Kenmore brand filter is 50% more at Sears for some reason... The replacement reminder on the fridge is set for a specific volume +/- and not the actual filter condition or flow, so if you have a decent water supply it can easily go through 2+ cycles without a drop in water quality.
I was apprehensive to replace the old filter, as it was the first time that it needed to be replaced. Installation instructions were included with the filter, and I had no problem removing the old one and replacing it with the new one.
I plan on continuing to purchase our replacement filters through Amazon.