Cen-Tec Systems 36747 3-Pack Beam Central Vacuum Bags These bags fit the following Beam models: 225C; 275C; 295C; 325C; 375C; 395C; 3500C; 3700C; 3900C and Electrolux: PU3650; PU3900 This is a premium OEM quality replacement bag Comes as a 3-pack of bags