True Blue 20 In. x 20 In. x 1 In. Family Protection MERV 8 Furnace Filter

Reduces common airborne allergens such as pollen, dust mite debris, pet dander, dust and lint. Reduces dust and dirt buildup in air ducts, air conditioners and furnace systems. Filter is made of a synthetic material for resistance to growth of bacteria, fungi and mold. More efficient than fiberglass filters. Cardboard frame.