20x21x1 MERV 8 Pleated Air Filter, 1 Pack | Air Filters Delivered

The Aerostar 20x21x1 pleated air filter delivers clean air by replacing your air systems vent intake filter. Designed to work with most home and office AC and furnace systems with compatible intake vent sizes, filtering out dust, pollen, bacteria, and other airborne particles. Great indoor air quality is as easy as changing your air filter to Aerostar.