AAF Flanders 4-Pack 16″ x 20″ x 1″ Nested Fiberglass MERV 1 Air Filter
4 x AAF Flanders Nested Glass Air Filters. Maintain cleaner indoor air with this set of four high-quality nested glass air filters designed to fit standard 16″ x 20″ x 1″ vents. Set of 4 durable nested glass fiber filters.