Fantom Thunder Replacement Hepa Filter Cartridge Fits all 12000 series & 11000 series FANTOM Vacuums Captures 99.97% of particles which flow through filter down to 0.3 in size Traps air contaminants such as: Pollen, Plant Spores, Mold, Bacteria, Lung Damaging Particles Easy to Replace Fits all 12.0 (12000 series) Fantom Thunder Vacuums and 11.0 amp (11000 series Fantom Vacuums