Arnold Exhaust Pancake Replacement Muffler for Mowers, 1/2-In.

1/2-Inch Exhaust “Pancake Type” Thread-on Replacement Muffler, 3 – 4 HP Briggs & Stratton, Tecumseh and Clinton Engines. Replaces B&S 298830, 394569 and others. 2-1/4″ H, 2-1/2″diameter W, 1/2″ pipe