The size of this Hoover bagless upright vacuum HEPA filter at approximately 11 3/4 inches in height makes it very easy to identify. Hoover does not make any other filters that are this big.

Hepa Hoover vacuum filter replacement for all Hoover Bagless upright vacuum cleaners that feature the Twin Chamber filtration style (the vacuum filter is on one side and the dirt is collected on the other).

This Hoover filter is also referred to as filter # :

43611042 and 43611-042
42611049 and 42611-049
40140201 and 40140-201
38230607 and 38-2306-07
Type 201 filter

This upright Hoover bagless filter fits but is not limited to Hoover :

Empower
Savvy
WindTunnel
WindTunnel Self Propelled Bagless

Universal Wind tunnel Twin chamber vacuum cleaner HEPA filter replacement for Hoover fits (but not limited to) the following Hoover vacuum cleaners :

U5260900, U5260950, U5262900, U5262910, U5263900, U5265900, U5265955, U5266950, U5268900, U5268950, U5268970, U5269900, U5269955, U52719RM, U52729RM, U57009RM, U5720950, U5720960, U5725900, U5725960, U5750906, U5752900, U5753900, U5753950, U5753960, U5753980, U5760900, U5760910, U5768900, U5786900, U66009RM, U6607900, U6616900, U6617960, U6618900, U6630900, U6632900, U6634900, U6637900, U6637960, U8120900, U8140900, U8147900, U8153900, U8155900, U8161900, U8171900, U8172900, U8173900, U8173950, U8174900, U8174950, U8181900, U8181950, U8183900, U8185900, U8187900, U8187950, U8188900, UH40020, UH40065, UH40110, UH40115CA, UH40125, UH60000.