This is the In-Sink-Erator QCB-AM Anti-Microbial Quiet Collar Sink Baffle Splash Guard (Evolution Series) 100% genuine In-Sink-Erator replacement sink gasket for Evolution Series disposers. It is 3.25" in diameter. This Quiet Collar Sink Baffle helps reduce noise, prevents food and water from splashing upwards, and is removable for easy cleaning. Antimicrobial feature helps inhibit growth of odor-causing bacteria. Previous product code: 77960A, the QCB-AM is the most current design and model available for Evolution series disposals. THIS IS NOT MEANT FOR BADGER DISPOSALS!