Product review (5 stars): You do have to run about 2 to 3 gallons of water after changing filters to get good, clear
Same as what came with the refrigerator.  We go through such ice and water that I have to change ours about every two months.  There may be less expensive ones but I'll stick with the original brand for now.  Yes: You do have to run about 2 to 3 gallons of water after changing filters to get good, clear, water.