Flanders PrecisionAire 84858.011820 18 by 20 by 1 NaturalAire Standard Pleat ....

Experience the clean air difference.

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 18" x 20"