The way I understand it is that there are three models of the 226BW being sold under the 226BW umbrella. Be sure to specifically request the model "S" when you order, it may give you grounds to say "You didn't send me what I ordered" if they send you a model C or A. Google 226BW Panel Types to know more.
[img = "http://www.bcchardware.com/gallery/albums/226BWDisassembly/web_back_sticker.jpg /img]