Royal RY4001 Backpack HEPA Filter - 2KE2110000

Royal RY4001 Back Pack Cleaning System Hepa Filter. Also fits Hoover C2401, C2401010, Shoulder Vac Pro Commercial Back Pack Cleaning System, C2401010 Shoulder Vac Pro Commercial Cleaning System. part #2KE2110000, 2-KE2110000, 2- KE2110-000