Hoover Windtunnell Air UH72400 Primary Dirt Cup Filter 303903001. 

Hoover WindTunnel Air, Air Steerable Primary Washable Filter. 

Fits Hoover Models: UH70400 UH70900 UH72400. FITS UH70403 UH70404 UH70900 UH70905 UH70930 UH70935 UH70901 UH70909 UH70939 UH72409 UH72401 UH72400 UH72405 UH70931 UH70403 UH70406. 

Manufacturer Part No.: 303903001    

H-303903001