Suitable for: R1234yf. Suitable for automotive and household air conditioners. Can be used for HVAC, air conditioning maintenance, and 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 checking during use. The low-pressure side gauge helps monitor pressure and proper charging. Size: Total length: 39cm Material: Metal Color: Blue Package Contents: 1 x Air conditioning line repair tool Only the above package content; other products are not included. Note: Lighting and display differences may cause slight variations in color between the image and the actual item. Measurement error allowed is +/- 1-3cm.