If you've got a big project with a lot of cleanup, these replacement vacuum bags from ZVac are for you. These bags feature a microfiltration design to remove and trap more dust and debris than standard vacuum bags. They're great for capturing airborne particles like pollen, dust, or drywall bits, and are easy to remove and change once full. The high quality design features heavy duty materials that won't rip or break. These great value replacement bags fit ProTeam Super CoachVac HEPA, CoachVac, and MegaVac model backpack vacuum cleaners. Please note, these bags will not fit newer Pro series models. They are comparable to part 100331 at a fraction of the cost. Made, Developed & Engineered in Germany by ZVac!