Simplify Your Refrigerant Fitting Needs: Say goodbye to the hassle of constantly switching out fittings and simplify your refrigerant fitting needs with this and conversion head set and Long-Lasting: Made from brass these conversion heads are built to withstand frequent use and last for Easily Convert Between 1/2ACME and R134a: This set of 2 brass conversion heads allows you to easily switch between 1/2ACME and R134a refrigerant fittings, making it a must-have for any HVAC technician or enthusiast Versatile Usage in Various Settings: These conversion heads can be used in a variety of settings, such as automotive air conditioning systems, home AC units, and refrigeration systems Suitable for HVAC Technicians and Enthusiasts: Whether you're a professional HVAC technician or a enthusiast, this conversion head set is the perfect tool for your refrigerant fitting needs, Manufacturer: TOWARDSNAN