Product review (5 stars): Excellent replacement for OEM refrigerator filter
I replaced a PUR branded water filter in my refrigerator, as this filter pack cost less than half that of the PUR.  I was initially disappointed, as the first water out of the filter was exceptionally cloudy with tiny air bubbles, and there was a lot of noise with water and air moving through the filter.  After running the required several gallons of water through the filter as recommended by the manufacturer however, the water became crystal clear and the noises of water running through the filter ceased.  Water tastes great, and flow rate is much improved compared to my previous PUR filter.

Pros:
Clean tasting water
Improved water flow rate compared to PUR filter

Cons:
Large amount of water needed to be wasted before water cleared up and noisy dispensing disappeared.