Product review (1 stars): Stay away
Likely the cause of damage to our refrigerator's water system -- refrigerator needed replacement of all water piping and controls within a few months of use.  As other reviewers for the single qty replacement have noted, there is some kind of air leak or poor construction/materials making this filter also a potential source of flooding in the home.  Stay away.  We had no problem with the original factory filters...10 yr old refrigerator never had any water issues until using these 'factory recommended replacements'.