Adapter-muffler 690637 - OEM Briggs and Stratton - eReplacementParts.com
795998 Briggs & Stratton BS-Muffler-795998 - Muffler & Adapter to fit OHV engines from 9-18hp, Models include any starting with 28 & 31 Briggs & Stratton Engine Parts
Adapter-muffler 796002 - OEM Briggs and Stratton - eReplacementParts.com