The Arnold M-111 Muffler is a high-quality replacement part designed for use with Briggs & Stratton, Tecumseh, and Kohler gas-powered engines with a 1" pipe. Specifically designed for engines with 9 HP to 16 HP, this muffler is durable and efficient in reducing engine noise and vibrations. Made by the trusted brand Arnold and featuring a gray color, this muffler comes in a pack of 1 and is a reliable option for maintaining your lawn mower or outdoor power equipment.