16 in. x 25 in. x 1 in. Fiberglass Furnace Air Filter MERV 1
Effectively captures household dust and other contaminants.
20 x 25 x 1 Fiberglass FPR 1 Air Filter (4-Pack)
Reduces dust and dirt buildup in air ducts, air conditioners and furnaces. Purifies air by capturing airborne allergens like dust, dirt and pollen.