United Filter 16x25x4 MERV 13 Furnace Air Filter (Case of 4)- HVAC Filters Captures Bacteria, Airborne Dust, Pollen, Mold Sizepores & Sizemoke

Nominal Size: 16 x 25 x 4 Actual Size: 15-1/2 x 24-1/2 x 3-5/8 MERV 13. High Performance Comparable to MPR 1500-1900. Safeguard homes from pet dander, dust mites, lint, pollen spores, fine dust, and bacteria. Capturing up to 98% of airborne particles without compromising airflow.Fits Corsi-Rosenthal Air Box Filters