Hoover 304149001 Vacuum Bottom Plate Genuine Original Equipment Manufacturer (OEM) part for Hoover Hoover Bottom Plate, with Wheels UH70400/UH70405. Fits these machines: UH70400- Hoover Windtunnel Air; UH70405- Hoover Windtunnel Air; UH70401- Hoover Windtunnel Air. Manufacturer Part No.: 304149001