Eureka Boss & Ultra Smart Upright Vacuum Type R Flat Belts 2 Pk Part # 20-3110-07 Eureka Boss & Ultra Smart Upright Vacuum Type R Flat Belts 2 Pk Fits 4800 series including Models 4870AT, 4870BT, 4870DT, 4870F, 4870G ,4870GZ, 4870GZX, 4870HZ, 4870HZX, 4870J, 4870K, 4870KE, 4870MZ, 4870PZ, 4870RZ, 4870SZ, 4870HZX, 4870T, 4872AT, 4872BT, 4874AT, 4874B, 4875A, 4880BT, 4880A, 4880D, 4885AT, 4885BT Generic Part # 20-3110-07 Eureka Part Number is 67110,67110A-12,67110A, 61110RL