Miele AirClean 3D Efficiency Dust Bag, Type U, 12 Bags & 6 filters Genuine Miele U Bags with new 3D efficiency. 3D efficiency allows dust bag to use entire volume Fits Miele s7000 upright vacuums and their new Dynamic U1 series Bundle includes 12 Genuine Bags plus 3 pre motor filters and 3 Air clean filters