The coolhiya adjustable r quick coupler connector adapter is designed for automotive air conditioning maintenance, fitting both high and low-pressure service ports with 1/4" sae male flare connection.Its compact size of 2.75 x 1.96 x 1.18 inches makes it suitable for professional technicians and diy enthusiasts to easily attach to r134a hvac systems.This second-generation quick r coupler adapter enables efficient and secure connection during hvac charging or evacuation procedures.The side fitting is compatible with manifold gauge sets, streamlining the process of refrigerant handling.Ideal for use in automotive repair shops or personal garage settings, this tool helps improve workflow when servicing vehicle air conditioning units.The set includes one adjustable coupler adapter, weighing just 11.21 ounces, ensuring portability and ease of use.Whether you're performing routine a/c maintenance or repair, this r quick coupler adapter is engineered to provide reliable performance without compromising connection quality.