The Liebert 195539P2 is a 21.5 × 24 × 4-inch MERV 8 air filter designed to remove airborne particles from HVAC airflow systems. It captures dust, lint, and debris as air passes through the pleated media, protecting internal components and maintaining air quality. Commonly used in precision cooling units, air handlers, and commercial HVAC systems, this filter supports efficient airflow... https://www.partshnc.com/195539p2-liebert-215x24x4-merv-8-filter-nr