Hoover Windtunnel Air Bagless Upright Vacuum Primary Filter Part # 303903001 Hoover Wind-tunnel Air Bag-less Upright Vacuum Primary Filte Fits Models, UH70400, UH70400RM, UH70400BCA, XUH70400, UH70401, UH70402, UH70402TV, UH70403, UH70404, UH70900, UH72400, UH70905, UH70930, UH70935, UH70901PC, UH70930, UH70935, UH70901PC, UH70909, UH70939, UH72409, UH70905DI, UH70401, UH72409DI, UH70900CDI, UH70402PC, UH70404PC, UH70400PC, UH70401PC, UH70400PDI, UH72400PDI, UH72405, XUH72401, UH70400CA, UH70400FDI, UH72400FDI, UH70930FDI, UH70930CA, UH70931PC, UH70403PC, UH72405PC, UH72406QPC, UH72400DI. Genuine Part # 303903001