Moen Shower Knob

So there is another moen tap knob that has been posted 2 or 3 times on the site. It seems to fit my bathroom sink tap rather than my shower. This knob is larger (inside diameter of the knob is 29mm) and fits my shower. My shower was installed around 2000 ... and I don't see any knobs like this in the current clutter at the local Home Despot.

One of the features of this knob are the "end stops" that let it turn about 300 degrees. The other knob only turns about 180 degrees by the look of i