Dirt Devil filter replacement 3550003000 (3-550003-000).
Dirt Devil F11 filter for Dirt Devil Floor Keeper heavy duty cleaners.
The F11 will NOT fit Dirt Devil Floor Keeper PLUS vacs.
Examples of Dirt Devil FloorKeeper hard surface vacuum cleaners that use an F11 filter includes but is not limited to models:
MCE5500, MCE5500CA and MCE5500CAB.