Protect your vehicle from wash-induced swirls with the Grit Guard Insert! The Grit Guard Insert is a radial grid that sits in the bottom of the wash bucket. Use it to agitate your wash mitt and remove grit, which falls to the bottom of the bucket. The Grit Guard Insert stabilizes the wash water in the bottom to keep dirt there. Therefore, the Grit Guard prevents the transfer of grit back to your vehicle. Voila! Your vehicle incurs fewer swirls during washing. This incredible tool is available in complete wash bucket systems and by itself. Try it once and you'll never want to wash your car without it!