As everyone knows all the dirt from washing your car settles to the bottom of the wash bucket.
Grit Guard essentially prevents your rags from touching the dirt, and reintroducing it to the car. I could go on, but I wanted to share some pictures.
This was after washing an Extremely dirty Chevy Teaverse.
^ with Grit Gaurd removed
^Paper Towel to show you
^ the actual device itself