This is a genuine Hoover Linx Platinum Stick Vacuum Model BH50010 Replacement Dirt Cup Baffle Assembly, Genuine Hoover Part Number 517758001. This part is located inside of the Dust Cup Assembly, and is no longer sold together with the replacement Dirt Cup. This part frequently gets thrown away by mistake, or emptied into the trash bin along with the other dust and debris. This part is essential to the cyclonic action and suction power of the Hoover Linx Platinum Stick Vacuum, and if missing, or damaged will severely restrict the cleaning performance. Fits Hoover Linx Platinum Stick Vacuum model BH50010, and Linx Stick Vacuum Model BH50015, as well as Hoover Cyclonic Corded Stick Vacuum Model SH20030, and Royal Pro Series Stick Vacuum Model ER2000. Genuine OEM Hoover Part Number 517758001, and 517758003.