Suitable for: R1234yf. Suitable for automotive and household air conditioners. It 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. With a pressure gauge, it can be easily checked during use. The low pressure side pressure gauge can monitor the pressure and help to charge properly. size:Total length: 39cm Material:metal colour:Blue Package Contents: 1 x air conditioning line repair tools Only the above package content, other products are not included. Note: Light 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.