Filtrete - 12 in. W X 24 in. H X 1 in. D 1500 MPR Pleated Allergen Air Filter 1 pk

The slim 1‑inch pleated design fits tighter 12‑inch‑wide returns or filter racks, making it ideal for narrower wall or ceiling intakes where better allergen control is needed without severely restricting airflow. For consistent performance and to support HVAC efficiency, this single‑use filter should be inspected and replaced about every three months based on system runtime, occupancy, and indoor air quality, and it is not suitable for washing or reuse.