Product review (5 stars): Make the switch today!
I'll never pay for the name brand again. The l differences I noticed is that the OEM had a circular hole for the water to enter and this one had a square opening and that the cut on it was a little roungher vs. the smoother more polished finish if the oem one. Additionally this has a smooth handle vs the OEM with LOCK printed on it.  I would guess that they save a bit in the manufacturing and that's how they can offer a price that's actually reasonable. As far as performance it seems identical and I couldn't be any happier. At this price I can almost fill a drawer with spares and still come out ahead.