Crafted with precision, the Everco A8101 Refrigerant Fitting is an essential component for your automotive air conditioning system. This 90-degree elbow fitting of 3/8" fits the inside diameter of a 5/16" hose, ensuring a seamless connection and optimal flow of refrigerant. Designed with a thread size of 5/8"-18, it's a versatile piece that's made to fit your system. Proudly manufactured in the United States, the fitting comes complete with an O-Ring and Clamp for easy installation and a secure seal. Its vintage part status denotes a time-tested design for reliability. Whether you're repairing or maintaining your vehicle's A/C system, this fitting is a practical choice for ensuring efficiency and durability.