Columbia 12" Fat Boy Drywall Flat Finishing Box
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Columbia 12" Fat Boy Drywall Flat Finishing Box holds 30% more mud than the standard Columbia 12" Flat Box. It works great for running the first coat on flat joints and butt seams. With 30% more mud, you can go longer distances without having to fill it up at the pump. Easy open door plate makes for very easy clean up and will fit on all major brands of flat box handles. 5 Year Columbia Warranty.