Includes 20 vacuum cleaner belts for users maintaining several compatible Sanitaire or Eureka upright vacuum cleaners. Fits common compatible models such as SC679, SC684, SC688, SC886, SC887, SC888, and related commercial upright vacuum cleaners. Use as a replacement for 66100, 30563B, 30563A, EL098, 52100, 52100B, and 52100C belt numbers. The rubber round belt helps connect the drive system and brush roll on compatible vacuum cleaner assemblies. 20 pack quantity is suitable for repair inventory, maintenance teams, or long term spare belt storage.