BAGVACMNBLS PRTPC10/PK Vacuum Filters Nobles Portapac Strap-A-Vac & Tennant Back Pack Vacuums 10/Case Designed for the cleaning professional who demands high-performance parts at a competitive price. Meets or exceeds OEM standards. Nobles Portapac Strap-A-Vac and Tennant Back Pack Vacuums 10 per Case.