Brush Magnagrit 17 56505911 for Pacesetter Floor Machines, Advance Pacemaker 17-20, Advance Pacesetter 17HD-20HD, Advance Pacesetter 170-200, Advance High-Speed Matador 17-20, Advance All-Purpose Matador 17-20, SelectLine 13, SelectLine 17TS, Nilfisk SD 17/20, Advance Shadow 17/20, Advance Shadow 17 Two-Speed, Advance SD 4317, Advance SD 17, and Nilfisk BA 430.