Features: Brand new and high quality 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 DIY enthusiast. Durable and Long-Lasting: Made from high-quality brass material, these conversion heads are built to withstand frequent use and last for years to come. Suitable for HVAC Technicians and DIY Enthusiasts: Whether you're a professional HVAC technician or a DIY enthusiast, this conversion head set is the perfect tool for your refrigerant fitting needs. 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. Simplify Your Refrigerant Fitting Needs: Say goodbye to the hassle of constantly switching out fittings and simplify your refrigerant fitting needs with this convenient and reliable conversion head set. Specifications: Material: Brass Length: 31mm Package Includes: 2 Pieces R134A Brass Refrigerant Tank Adapter note: Due to the problems of lighting effects and shooting angles, there will be certain tolerances in the product, please understand. Please allow 0-1cm error due to the manual measurment.