This filter package is also referred to as filter 38766009. Hoover final filter 2 pack for non-self-propelled Hoover® WindTunnel® vacuum cleaners.
The filter measures 6-5/8" x 3-5/16" x 1/2" and has a single white layer. Previous versions had a green layer, a yellow layer and a white layer. It does not fit self-propelled WindTunnels.
Filters fit inside the filter door on the side of non-self-propelled WindTunnel® uprights and also standard (non-WindTunnel®) Bagless uprights including newer Fold Away models. Hoover Part Number: 40110004 / 38766009