Web EcoFilter 14 In. x 20 In. x 1 In. to 20 In. x 25 In. x 1 In. Adjustable MERV 7 Furnace Filter

Washable and reusable for up to 6 years. Traps smoke, pollen, dust, and dander-sized particles 0.3 to 10 microns. Fully adjustable to fit sizes from 14x20 to 20x25x1. MERV 7.