Dirt Devil BD21005 Series Broom Vac Style F-85 Dust Cup Filter 1 Only Part # 440005477 Dirt Devil BD21005 Series Broom Vac Style F-85 Dust Cup Filter Single Fits Models : SD21000BMD, BD21005U, SD21000U, BD21005, SD21000, BD21005PC, SD21000PC. Genuine Part # 440005477