Filtrete 20 In. x 25 In. x 4 In. Allergen Defense 1000 MPR Deep Pleat Furnace Filter

Filtrete Allergen Defense deep pleated filters attract and capture microscopic allergens like dust, smoke, and smog particles, and large allergens like mold spores and pollen. For residential use only. Outperforms fiberglass, washable and non-electrostatic 3-month pleated 1 In. filters. Red label.