Product review (5 stars): Real deal, no reason to be skeptical
Great deal.  Saw this on a deal site and was skeptical since the price for three was less than what I had paid for one.  Installed the first one this past week and it has the look, feel and performance of the much more expensive one that I bought at Home Depot.  Thrilled with filter so far, and am now hoping this will cause me to change them more than once every two years!  Highly recommend.