Product review (1 stars): The first filter worked fine. The second filter which we tried to install ...
I ordered two filters in January 2015 to have one on hand the next time the filter was due to be changed in six months.  The first filter worked fine.  The second filter which we tried to install on Monday, 7/6/15, was defective.  I had a repair technician check it also to make sure the problem wasn't user error.  When I went to my account to return the defective filter, I found that I would have had to return it within 30 days.  This policy makes having replacement items on hand for something needed more than 30 days out impossible.  Amazon should review this policy and change it for this type item.