Fiberglass Furnace Filters 18x20x1, 12-Pack, Disposable HVAC
18 x 20 x 1 in. EZ Flow II Spun Fiberglass Disposable Furnace Filter. Effective Against DustLint. Item Weight – 0.39 lbs. Precisionaire Furnace Air Filter 18″ X 20″ X 1″ Fiberglass. Compatible Devices: Furnace.