Product review (5 stars): Pay close attention to the Model Number
I recommend Swift Green Filters. I have a high end french door LG refrigerator. The LG filter runs at about $50 at my local store. These filters are not only cheaper, but environmentally friendly and just as easy to install as the OEM. Pay close attention to the model numbers. For example, my LG filter model is 5231JA2006B. The "B" at the end indicated the filtration level. The "A" version also fits the appliance but will not filter out certain contaminants from the water like the "B". The Swift Green model I purchased was the SGF-LB60. Again the "B" here is what will maintain the higher filtration level that the "B" on the OEM filter does.

The Swift Green website will help determine the filter you need. Overall save money and have a Greener filter? Makes sense to me!

*Note that the Swift Green Filters recommend soaking the filter in water for 15 minutes and running about 2-3 gallons of water through the filter before first use. Ensure that when you submerge the filter (I did it in my kitchen sink) that you allow all air to come out of the filter so that the inside of the filter activates. The filter will first want to float but with a little help you will notice it beginning to sink. I started timing once the filter was saturated with water.