This AC Charger Adapter is retrofit to accept the R13A port so you can get the quick connection that you need. It has a compact size that is easy to install, ensuring that you can use your fitting right away. The R12 to R134A adapter has a 7/16" low and 3/8" high with 2 valves that are removable. The parts are easy to differentiate, so you can install them smoothly. The AC valve will make a helpful addition to your old system. They are brand new with high-quality parts that you can rely on. The AC Charger Adapter comes as a single set. 100% brand new and high quality Charging port adapter R12 port to accept R134A "quick disconnect" Time-saving and effort-saving while installing, lightweight and shortcut R12 to R134A adapter can be matched used with valve by connecting with screw thread Designed with a gas valve inside, equipped with a plastic protective cap