Designed to fit Riccar 8000 series including 8625, 8650, 8850, 8750, 8900, 8920, 8925, 8955; Simplicity 7000 series including 7200, 7250, 7300, 7350, 7 series including 7700, 7750, 7850, Commercial series including 7400, 7450, 7900, 7950; Belvedere upright vacuum cleaners. Compare to original manufacturer numbers: 52-2404-01, Type B C15H-6, C15, C15-6, C15-12, 52-2404-01, Type B, S7-3, S7-6, S7-12, SBH-6, replaces or comparable to Riccar EcoPure Ultrafiltration Vacuum Parts.