Product review (5 stars): Perfect replacement for OEM part
Not quite identical to the OEM, but still installed easily with no issues.  There is a pair of plastic knockouts, one of which is removed for either end-feed or side-feed of the water inlet.  The plastic is too thick to break out along the score lines, so it's necessary to cut the knockout out.  Once installed it works fine with no adjustment needed.  Much much cheaper than the OEM replacement, a very good value.