The Emerson Flow Control (Alco) 059541-D-48 Filter Drier Core is a high-performance replacement filtration element designed to remove moisture, acids, and solid contaminants from refrigeration and HVAC systems. It works by allowing refrigerant to pass through an advanced desiccant and filtration media that captures impurities while preserving clean refrigerant flow. Commonly used in a... https://www.partshnc.com/059541-emerson-flow-control-alco-d-48-filter-drier-core