The AC Oil Injector Tool is a versatile product designed for use with various refrigerants including R134A, R410A, R22, and R12. Manufactured by KAISAL, this tool allows for easy injection of compressor oil into the AC system, ensuring optimal performance and longevity. With a compact size and a weight of 15.8 ounces, this product is convenient to use and store for HVAC professionals and home repair enthusiasts alike. Perfect for maintaining and repairing AC systems, this oil injector tool is a valuable addition to any toolbox.