This is not just a standard bucket; it is a specialized washing system essential for scratch-free cleaning. It consists of a heavy-duty bucket and a plastic insert called a “Grit Guard” that sits at the bottom. The guard has radial fins that stop the water at the bottom from swirling. When you dip your wash mitt, gravity pulls heavy dirt below the guard. The fins keep this abrasive grit trapped at the bottom, preventing it from re-attaching to your mitt and scratching your car’s paint.