True Blue 20x22-1/4 x 1 In. Fiberglass Air Filter

True Blue 20x22-1/4x1 Fiberglass MERV Rating 2 30-Day Filter. This filter effectively traps pollen, dust, and lint, reducing dust and dirt buildup in air ducts, air conditioners, and furnaces. Made from heavy chipboard in a one-piece design, it features continuous filament spun glass filtering media that adheres directly to the frame, eliminating the need for a retainer. A resinous bonding agent adds rigidity and resistance to media compression.