Product review (4 stars): Be sure to flush the filter before making ice or drinking water.
It is hard to find filters priced substantially lower than name brand ones, so I gave these a try. Since I have to change them regularly I got 4 so I'd have some on hand and to save on shipping. What I did not expect was how much you need to flush it out after putting in the new filter. Instructions said to flush for 6-8 minutes (about 3-4 gallons) of water after replacing the cartridge. So far it seems that the filter is doing the job well.