Pre-Pleat 40 Economy Air Filter, 100% Synthetic, High Dust Holding Capacity And Low Pressure Drop, 2 Piece Heavy Duty Die Cut Frame, Expanded Metal Backing & Diagonal Grid Supports For Maximum Strength, MERV Rating 7, 90 Day Filter, Effective Against Pollen, Dust/Lint, Dust Mites, Pet Dander, Mold, Bacteria, Virus Carriers.
