Vacmaster 3 pack 12-16 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 pick-up only. Fits most Vacmaster wet/dry vacs 12 to16 gallon. Fits most Shop-Vac wet/dry vacuum cleaners (12 to 14 gallon). **This is not a product of, nor is it sponsored or endorsed by Shop-Vac. Shop-Vac is the registered trademarks of the Shop-Vac Corporation.