This 5 gallon Optimum Polymer Technologies branded bucket fits the grit guard insert perfectly. Made from natural (semi-transparent) sturdy plastic.
Incorrect washing is almost the one and only source of swirl marks and scratches, caused by dirt particles trapped between your wash mitt or sponge and the painted surface.
What does a grit guard do?
A grit guard is a metal or plastic grill designed to sit a few inches from the bottom of the water bucket to trap the grit when you rinse your wash mitt. This handy model allows you to avoid reapplying dirt to the car when you wash the sponge or cloth. ... The loose particles will then sink to the bottom of the bucket.
Is a grit guard necessary?
If you intend to prevent scratching the surface you are cleaning, yes you need a Grit Guard insert or something equivalent. While no one tool or accessory will guarantee that you won't damage your paint while working on it, they will guarantee a higher chance of not harming your paint when used together.