Product review (5 stars): WORKED PERFECT
The product worked identical to the manufacture brand in every way.  There is a three-eighth inch opaque washer under the tamper proof foil that I had to set into place before installing the filter.  (It may have dislodged in shipping)  But I had no leaks, no taste or installation problems.  Due to costing only half as much as the brand filter, I would have rated it six stars if I could.