Product review (5 stars): Fits Badger series collars too
This fits the Insinkerator Badger series collars too. I had  2010 Badger 1/4 hp that died. Replaced it with a 1/2hp Badger and used the same sink collar. Wanted a new, clean rubber seal and got this, hoping to get some sound attenuation too. Small improvement in noise but the good news is it fit the Badger collar perfectly.