Suitable for: R1234yf. Suitable for automotive and household air conditioners. Can be used for HVAC, air conditioning maintenance, and necessary tools for adding coolant or fluorination. High quality: R1234YF service hose kit is made of metal material, with strong structure, stable performance, durability, and long service life. Easy to install: Insert the quick connect R1234YF coupler to easily connect to the low-end port, with automatic shut-off function. Simple and easy to use. Includes a pressure gauge for easy monitoring during use. The low-pressure side gauge helps monitor pressure and properly charge the system. Size: Total length: 39cm Material: Metal Color: Blue Package Contents: 1 x Air conditioning line repair tool Note: Light and different displays may cause the color of the item in the picture to be slightly different from the real thing. Measurement allowed error is +/- 1-3cm.