These bags are designed to work with the ZVac Backpack Vacuum Cleaner Commercial Grade ZBV-2 1.5 Gal. The highly-efficient ZVac Micro Filter Paper Bags are engineered to not only safeguard the air quality of your indoor facilities but also to optimize the performance of your ZVac Backpack Vacuum Cleaner Commercial Grade ZBV-2. More than just your average vacuum paper bags, these ZVac micro filter bags have a laminated inner lining that not only increases overall durability and filter life but eliminates shredding. Included: 10 Pack Paper Micro Filter Bags for ZBV-2