Product review (3 stars): Fill, flush, repeat
It states unequivocally that this filter is a comparable replacement for the Whirlpool 4396841, 4396710, and W10193691 but with superior performance. Also it is claimed that the piece was designed with usability in mind, this filter is packaged with louder colors and an instinctive model number to practically guarantee you are getting the right filter for your fridge. Along with this comes a significant increase in contaminant reduction up from 16 to a NSF certified 66. Now, my issue comes in the fact that aside from the astronomical price, the filter (which does everything but give you a sponge bath) needs to have three gallons of water flushed through it in order to be safe and drinkable.  I don't know about you, but in order to complete this requisite requirement, one is spending an inordinate amount of time filling and dumping out 'fresh' water from the fridge dispenser. Given this initial task, three stars seems more than generous.