3PK 20x25x1 Naturalaire Standard Pleated Air Filters, Case of 4
3 Pack, 20" x 25" x 1", Natural Standard Pleated Air Filter, 100% Synthetic Wire Backed Media, Craft Die Cut Frame, MERV Rating 8, 90 Day Filter, Effective Against Pollen, Dust/Lint, Dust Mites, Pet Dander, Mold, Bacteria, Virus Carriers.