Filtrete - 20 in. W X 30 in. H X 1 in. D 300 MPR Pleated Filter Dust 1 pk

Homes with larger return grilles still need basic dust control to protect equipment and reduce surface buildup. This 20x30x1 panel in Filtrete’s 300 MPR (MERV 5) Basic Dust line uses electrostatically charged synthetic media to attract and capture everyday particles such as household dust, lint, and dust‑mite debris as air passes through your furnace or AC, offering a noticeable improvement over fiberglass or washable filters while keeping airflow relatively unrestricted.