3M COMPANY 310-6 12" x 12" x 1" Grey Dust Reduction 3 Month Filtrete Filter (6 pack) 12" x 12" x 1", Grey, Dust Reduction Filtrete Filter, 3 Month Filter, Electrostatically Charged Fibers Attract & Capture Large Airborne Allergens Like Pollen Adds extra shine to your product Made In China Pack of 6