Product review (5 stars): READ THE DIRECTIONS TO CONDITION FILTER IF YOU WANT IT TO WORK
I've used these for years in 2 fridges and never had a single problem with any of them, even the newer versions. The one thing I do EVERY TIME I replace a filter is follow the directions on the box and immediately after installation run about 3 gallons of water through the filter to "condition" it. It spits and sputters but quickly levels out and then I never have a problem from then on. The reason I pay the extra money for these (there are cheaper competitors) is that the others don't seem to list (and certify) removal of things like waste pharmaceuticals (as well as several other contaminants). Maybe those others are cheaper for a reason.