The big kahuna of shop towels are these 18" x 18" virgin or unbleached heavy-duty rags. These packed in a bulk bale that weigh 175 pounds for 2500 towels. Pretty tough to find that nowadays. They are designed for long lasting cleaning in print shops; made with premium 100% cotton, in unprocessed bales. Can be bleached or throw different colors in the washer to color these accordingly. Furthermore, these can be cleaned in home wash as well as a commercial. (Commercial/Industrial or laundromat wash is better as these can ruin your washing machine as to how dirty they get.)
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