Replacement Sponge Filters Compatible with for BLACK+DECKER POWERSERIES+ Cordless Stick Vacuum Spare Parts Models BHFEA420J, BHFEA520J, Compare to Part # 5140238-22. Filter dust, filter the exhaust air, protect the vacuum cleaner motor. Reduce dust into the air you breathe. Made of high quality material, more durable.It is recommended that the sponge filter to be replace every 3-6 months for best performance. Washable and Reusable for filters ,Simply rinse with clean water and let it completely air dry before reusing them. Package includes: 4 Pcs Replacement foam Filters.