This oval style, pleated-paper air filter provides superior protection against the destructive effects of dirt ingestion. Used on select 550e-550ex Series engines, this OEM part ensures proper fit and performance to maintain the life of your Briggs & Stratton engine.• Easy to use• Genuine Briggs Stratton new OEM part• There are no substitutes when it comes to keeping engine powered equipment healthy, to maximize engine life, meet original equipment specs and provide full warranty coverage, always use genuine parts from Briggs & Stratton• •