The adapter presented here is a key element in the field of connecting piping or other components of hydraulic and pneumatic systems. This Preseun type adapter, with a diameter of 63 mm (or 2.1/2 inches), facilitates connections between components of corresponding sizes. With a pressure rating of 6 bar, it is suitable for applications requiring moderate operating pressure. The internal thread provides a reliable and tight connection between the connected elements, preventing leaks or loss of pressure. The reliability and performance of this adapter is essential to ensure optimal performance of hydraulic or pneumatic systems in a variety of industrial or commercial applications.