• R410A refrigerant charging adapter designed for air conditioning systems. • Allows regulation of refrigerant flow in charging hoses, optimizing the maintenance process. • 1/4'' - 5/16'' filling pipe connection, compatible with the most common British standard. • Installs at the end of the filling hose, helping to minimize refrigerant loss during service. • Easy installation by rotating the top load, making changing and use easier. • Made of high-quality brass, providing strength and durability. • Thick body ensures longer service life and reliability for professional use.