3 pack 810 gallon high efficiency dust bag For fine dust filtration For vacuuming household dirt debris and fine dust like cold ashes, cement dust and drywall dust For dry pickup only Fits most Vacmaster wetdry vacs 8 to 10 gallon Fits most ShopVac wetdry vacuum cleaners 8 to 10 gallon This is not a product of, nor is it sponsored or endorsed by ShopVac ShopVac is the registered trademarks of the ShopVac Corporation