"Filters dirt accumulated in the wash mitt Places at the bottom of a bucket to allow dirt to stay at the bottom of the bucket. Dirt stays at the bottom of the bucket and is not transferred back into the mitt. Recommended for use with Meguiar's RG203 and RG206 buckets Places at the bottom of a bucket to allow dirt to stay at the bottom of the bucket. fit_type: Universal Fit Placed at the bottom of the bucket, the grid (26.3 cm diameter) filters dirt accumulated in the wash mitt. By dipping the mitt into the bucket equipped with a filter grid, the dirt stays at the bottom of the bucket and is not transferred back into the mitt. Suitable for all bucket diameters, the Grit Guard allows you to wash without the risk of scratching the bodywork."