Pack of 12 quality filters designed for protection of furnace and central air units;MERV 8 rating: Removes household dust, pollen, dirt, mold spores and more;Pleated media provides large surface area for more effective filtration while keeping airflow resistance low;Each filter maintains efficiency for up to 90 days;Compatible with HVAC systems requiring filters sized 20 x 20

• NaturalAire Standard Air Filter, MERV 8, 20 x 20, 1-inch,
• 20" x 20" MERV 8

NaturalAire Standard Air Filter, MERV 8, 20 x 20, 1-inch,Flanders Corporation