Amazon offers the Chemical Guys Grit Guard Bucket Insert, model no. IAI503, for $7.52. Clip the $1 off coupon on the item page and add it to your cart via Subscribe and Save and the price drops to $5.39 and bags free shipping. That's the lowest total price we could find by $8. It fits in the bottom of any 3.5- to 7-gallon wash bucket to separate grit from your cleaning mitt.

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