Trane FLRSF1235 1" Filter MERV4 12 Pack

The Trane FLRSF1235 1" Filter MERV4 is an air filtration with 12-pack part designed to capture dust, lint, and airborne particles from circulating air in heating and cooling HVAC systems. It works by allowing air to pass through its fibrous media, trapping contaminants while maintaining proper airflow for efficient system operation. Used in residential and light commercial air handlers, furnaces, and return air systems where basic filtration is required. To improved indoor air, protection of internal components, and reduced maintenance needs, supports ensure consistent airflow and accurate performance in system.