Nordic Pure 18x20x1 (Actual Size: 17 1/2 x 19 1/2 x 3/4) Poly Green MERV 6 AC Furnace Air Filters – Reduces Dust, Pollen, Pet Dander & Allergens – 4-Pack

Nordic Pure 18x20x1 (Actual Size: 17 1/2 x 19 1/2 x 3/4) Poly Green MERV 6 AC Furnace Air Filters – Reduces Dust, Pollen, Pet Dander & Allergens – 4-Pack