Hoover # 38765019 / 38765023 secondary vacuum cleaner filter. Fits most WindTunnel self-propelled models. This filter fits inside the Hoover WindTunnel bag chamber. Genuine Hoover secondary vacuum filter. Replacement alternate is also available.

Fits but limited to the following Hoover upright vacuum models:C1701900, C1703900, C1705900, U5140900, U5145900, U5146900, U5148900, U5150900, U5155900, U5156900, U53019RM, U53029RM, U5348911, U5402900, U5409955, U5416900, U54219RM, U5435906, U5436950, U5438960, U5453900, U5458900, U5458910, U5460900, U5462900, U5467900, U5468900, U5470900, U5473900, U5481980, U5491900, U5491950, U64019RM, U6420900, U6434900, U6436900, U6445906, U6454900, U6471900, U6476900, U6476910, U6485900, UH30015, UH30030HD, UH50000.