Product review (5 stars): It fits, it works I don't know what else to say.
There is a great deal of concern that many filters are made in China and are "off brand".  I share these concerns but it looks like there is no legitimate way to tell OEM vs knock offs.  If Amazon continues to sell them that it is the most effective evaluation of quality.  However I wish Amazon would step up and make some definitive unequivocal statement as to the legitimacy and quality of the filters sold here in order to assure us that we are buying quality goods.