Product review (5 stars): Buy the 3 pack for savings
Product arrived in a day and a half and fit right into our frig filter port in a jiffy.  I figured the warning light on the frig to change our filter was a little early in order to get people to buy more filters (I'm suspicious of self serving things), but low and behold, when the old filter (maybe a year old or so) was pulled out, the water that spilled out from it was a bit yellow/brown.  The filter truly did need changing.  Glad I bought the (highly) discounted 3 pack of filters.  Will change filter ASAP when the light com s on the next time.

One other thing - believe the directions that come with the filter about air in the system.  I went to purge the line into a regular cup and had water all over the place because of the air in the system.  Not the products' fault - it's all on me!!