[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 design. [Versatile R134A to R1234YF Adapter]: The R1234YF quick coupler is an essential component for automotive air conditioning systems. Features a ball lock and seal design 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: As shown 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: Light reflection and different displays may cause slight color variations. Measurement error allowed is +/- 1-3 cm. Package includes only the items listed above; other products are not included.