7/8" Union Quick Connect Refrigerant Fitting, Connection Type: Push-to-Connect, Material: Brass, Connection Size: 7/8", Features: UV-Resistant, Corrosion Resistant, Compatible for R-410A and R-22, Application: Coated Aluminum Linesets, Residential Use, Mini-Split HVAC Units, Unitary Indoor Coils, Weight: 5.802 lbs