Product review (5 stars): Buy this!  Do not buy the eBay cheap version!!
This filter does cost more, but it fits and works.  I bought a 4 pack on eBay for $65.  Great deal?  Nope.  The filters look identical and are packaged identically to the real product, except for a sticker placed over the made in America printing.  I tried all four and all four wouldnt seal because they wouldnt twist on far enough!  They also had unwashed carbon and turned the water black.  I tried to flush the one that slightly leaked, but even after about 3 gallons the water was still black.  I put the old filter back in and everything was fine.  I ordered this real OEM one from amazon, installed it with no leaking and its just as it should be.  I did get a refund from the eBay merchant, but they didn't want their filters back.  Dont waste your time with the $16 knockoffs!