The Hoover 303903001 is the OEM washable dirt cup filter for WindTunnel Air and Air Steerable upright vacuums. The filter is rinsable and reusable: wash in cold water, allow it to air-dry completely, and reinstall. Do not use a dryer or direct heat.

Fits a broad set of WindTunnel Air and Air Steerable models: UH70400, UH70403, UH70404, UH70900, UH70905, UH70930, UH70935, UH70901, UH70909, UH70939, UH72409, UH72401, UH72400, UH72405, UH70931, and UH70406. OEM Hoover part number 303903001.