2 Hoover Commercial 2KE2105000 HEPA cloth bag liner, HEPA filtration. 2 Cloth replacement bags with rubber ring. Used with Hoover shoulder VAC Pro vacuums. The Cloth vacuum bag with rubber gasket, designed to fit Royal RY4000 and RY4001 backpack style vacuum cleaners. Also, fits Hoover C2401 and C2401010 Shoulder Vac Pro Commercial model vacuums. The package contains 1 cloth vacuum bag. The cloth vacuum bag includes a rubber gasket to ensue a perfect seal The package contains 1 cloth vacuum bag OEM # 2KE2105000