The Supco LLD-163S Liquid Line Filter Drier is a gray-colored 3/8" ODF filter designed for use in refrigerant liquid lines. It features a directional flow design and is suitable for CFC, HCFC, and HFC refrigerants. With a sweat/solder connection type, this filter drier is easy to install and is a reliable component for HVAC and refrigeration systems. Made by the trusted brand SUPCO and manufactured in China, this filter drier is a essential part for maintaining the efficiency and performance of your refrigeration system.