12x18 x 1 In. Fiberglass Air Filter, 30 Days

True Blue 12"x18"x1" Fiberglass MERV Rating 2 30-Day Filter. It is effective against pollen and dust/lint. This filter reduces dust and dirt buildup in air ducts, air conditioners, and furnaces. The EZ Flow II is made from heavy chipboard in a one-piece design. The filtering media is continuous filament spun glass and is made to function without a retainer, by adhering the frame directly to the media which has a light skin to make it self-retaining. UL Classified. Comes in 1 inch size.