The Sanhua HVAC 3/8" Liquid Line Bi-Flow Filter Drier STGB 053s is a high-quality filter drier made of metal with a sleek black color. Designed by the reputable brand Sanhua, this model STG B05030-901 is specifically designed for HVAC and refrigeration systems to ensure smooth and efficient operation. Perfect for businesses and industrial applications, this filter drier helps to remove impurities and moisture from the refrigerant, preventing costly system failures and extending the lifespan of the equipment.. Sanhua HVAC 3/8" Liquid Line Bi-Flow Filter Drier STGB 053s--STG-B05030-901--5201-019