Feature:1. SELF SEALING FUNCTION: This R1234yf air conditioning quick coupler has a self sealing and puncture design, ensuring that the refrigerant will not leak when not in use, improving efficiency and saving money.2. WIDE COMPATIBILITY: R1234yf quick coupler is suitable for both R134a and R1234yf car air conditioning systems, making it can serve a variety of air conditioning systems.3. HIGH AND LOW PRESSURE DESIGN: R1234YF adapter includes high and low pressure quick couplings, unique design, easy to use, can be connected quickly and without leakage, making refrigerant charging more convenient.4. BRASS MATERIAL: R1234YF adapter is made of premium brass, erosion resistant, high pressure resistant, can withstand high temperatures, ensuring reliable usage over time5. EASY INSTALLATION: R1234YF quick coupler kit is precision constructed for easy installation and usage, and can provide a lot of convenience for your daily use equipment.Specification:Item Type: R1234yf Quick Couplers SetMaterial: BrassFitment: Car Conditioner AC Charging.Package List:1 x R1234yf Quick Connector Set(8pcs)