[R1234YF Adapter]: This quick coupler easily and efficiently converts R134A to R1234YF, featuring both high and low side connectors for AC charging systems. Durable and user-friendly. [Versatile R134A to R1234YF Adapter]: The R1234YF quick coupler is an essential component for automotive air conditioning systems. Designed with a ball lock and seal mechanism for reliable leak-free performance, ideal for R134A to R1234YF conversion, recovery, and evacuation. [High-Quality Construction]: Made from high-quality brass for long-lasting durability. Color: As shown in photo Material: Copper Size: N/A Package Contents: 1 x Blue Low Side Quick Coupler 1 x Red High Side Quick Coupler 4 x Valve Cores for R134A System 4 x Valve Cores for R12, R22 System 1 x Valve Core Tool Note: Only the items listed above are included. Other products are not included. Note: Slight color variations may occur due to lighting and display differences. These do not affect product functionality. Measurement error allowance: +/- 1-3 cm.