20x21x1 Air Filter MERV 8 - Premium HVAC Furnace AC Replacement Filters for Home, Office & Commercial Use - Improves Indoor Air Quality & Reduces Allergens

The Aerostar 20x21x1 pleated air filter delivers clean air by replacing your air system’s 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.