Flanders NaturalAire 20 In. x 30 In. x 1 In. Natural Fiber MERV 4 Trimmable Air Filter

Smilie cut-to-fit filter is a eplacement for hard to find or special filter sizes for furnace or central air. Excellent for systems requiring high velocity filters. Low airflow resistance means lower energy costs. Washable, reusable, and biodegradable. Traps dust/lint, dust mite debris, pollen, mold spores. Washable.