Description of the Flame Arrestor: Type: High-flow, polished stainless steel flame arrestor. Breather Fittings: Features one 5/8″ breather fitting. This is important for proper crankcase ventilation and ensures the flame arrestor integrates correctly with your engine’s breathing system. Dimensions: Diameter: 8 inches Height: 3 3/4 inches Element (Screen) Height: 3