Milwaukee 49-90-1900 - Wet/Dry Filter KitThe MILWAUKEE HEPA Filter works on the M18 2 Gallon Wet Dry Vacuum (0880 20), M12 FUEL 1. 6 Gallon Wet Dry Vacuum (0960 20), and the M18 FUEL PACKOUT Wet Dry Vacuum (0970 20). This high efficiency HEPA filter is excellent for fine dust suction. This certified HEPA Filter captures 99. 97% of all particles greater than 0. 3 microns and is easy to install and remove with its twist and lock feature. Features Captures 99. 97% of all particles greater than