[R1234YF Adapter]: This quick coupler converts R134A to R1234YF easily and efficiently as it includes both high and low side connectors for AC charging systems. It is durable and easy to use. [Versatile R134A to R1234YF Adapter]: The R1234YF quick coupler is an essential component for every automotive air conditioning system. It has a ball lock and seal design for secure from leaks sealing performance, making it ideal for R134A to R1234YF conversion, recovery, and evacuation activities. [High-Quality Construction]: This R1234YF Adapter is made of high-quality brass and is durable. Please note: the physical slightly color difference or difference, does not affect the use, please do not mind, thank you! Colour:Photo Color Material:copper Size: Package Contents: 1Pcs x Blue Low Side Quick Coupler 1Pcs x Red High Side Quick Coupler 4Pcs x Valve Cores for R134A System 4Pcs x Valve Cores for R12, R22 System 1Pcs x Valve Cores Tool Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.