Dirt Devil Upright Bag-less Vacuum Model M091950 Foam Filter Part # 1UD0281500 Dirt Devil Upright Bag-less Vacuum Model M091950 Foam Filter Fits Models : M091950, M087400, M087300, M088910, M088920, M088915, M088915V, M088911B, M087305, M088925V, UD40180, UD40180RED. Genuine Part # 1UD0281500.