The Danfoss 023U1392 Filter Drier Core is a high-performance replacement core designed for HVAC and refrigeration systems. Made with 100% molecular sieve, it effectively removes moisture and acid from refrigerants, ensuring system efficiency and preventing corrosion. This core is commonly used in commercial and industrial refrigeration units, air conditioning systems, and heat pumps. https://www.partshnc.com/023u1392-danfoss-drier-core-100-molecular