Filtrete - 3M 12 in. W X 24 in. H X 1 in. D Polypropylene 700 MPR Pleated Air Filter 1 pk

This electrostatically charged polypropylene pleated filter works continuously to trap common household contaminants such as dust, pollen, pet dander, and lint as they pass through your furnace or central air conditioning system. With a 700 MPR performance rating (approximately MERV 8), it provides enhanced filtration over basic non‑pleated filters while maintaining dependable airflow in 1‑inch filter slots, and should be replaced roughly every 90 days for best results.