The York 026-37563-000 3/8" Filter Drier is an essential component in HVAC systems that protects the refrigeration system from impurities and moisture. This tiny unit is 10" x 3" x 1" and has a 3/8" connector for optimum refrigerant flow. Functionally, the filter drier serves as a high-efficiency filtration and drying device. https://www.partshnc.com/38-filter-drier