The Rectorseal PRO-FIT 3/8" Quick Connect Union is an innovative solution designed for the efficient connection of refrigerant lines without the need for open flames, brazing, or swaging. This push-fit connector allows for quick and easy assembly, enabling users to join refrigeration lines in seconds after simply cutting and deburring the ends. Its robust brass construction ensures durability and resistance to corrosion and UV exposure, making it ideal for various HVAC applications. Featuring a patented leak-resistant design with double O-rings and grip rings, this union provides secure, leak-free connections suitable for both CFC and HCFC refrigerants. The inclusion of a sight window allows for easy verification of connections, enhancing user confidence during installation. With its time-saving capabilities, the PRO-FIT Quick Connect Union is perfect for mini-split installations and is part of a comprehensive system that includes various configurations such as unions, elbows, reducers, and sockets.