Turn your car wash bucket into a scratch-free powerhouse with the Sand Killer Bucket Sand Filter. This innovative insert separates dirt and debris from your wash mitt so you don't reintroduce it onto your car while you wash. This plastic filter fits 12-inch buckets and cleans mitts, sponges, towels and other wash accessories by trapping dirt at the bottom of the bucket. Keep your mitt clean and prevent swirls and scratches.