Product review (2 stars): 2 out of 3 were defective
I ordered 3 of these filters so that I always had a filter on hand when the existing filter expired/needed to be replaced.  Unfortunately, the return policy only authorizes returns up to 30 days.  Well, since these filters are good for 4-6 mos, it wouldn't do any good to order more than one at a time since I wouldn't be using the additional ones until well after the window of opportunity for returning the item. And, since the batting average for these items isn't great (out of 3 I bought, only 1 was able to be inserted into my refrigerator), I think I'll buy name-brand replacements in hopes that this will guarantee that the filter will fit.