The Foam Air Filter Box Cover for GX22 GX31 139F 31CC Engine Brushcutter is a highly efficient and effective dust protection guard for your cutting tool. Made from high-quality, eco-friendly foam, it ensures a smooth and dust-free filtration system, extending the lifespan of your engine brushcutter. This innovative design replaces the traditional air filter box cover, providing superior dust protection and eliminating the need for frequent maintenance. With its smooth edges and streamlined shape, it fits seamlessly into the engine bay of your GX22, GX31, 139F, or 31CC engine brushcutter, ensuring optimal performance and reducing wear and tear on your cutting tool. Try it today and experience the difference in efficiency and convenience!