1/2 thread is available in the US and Europe. Metal valve belt 1.27 cm fit. The connector of the Freon gas tank can be adjusted. The refrigerator charging tube of this system is equipped with a built-in safety valve to prevent accidental ventilation of the refrigerant. The hose is made of high quality rubber material and is to high pressure and reliability. Used to add R134A refrigerant to vehicles or home air conditioners with high performance. Used to check low side pressure to accurately fill the air conditioner,Easy to use. Equipped with a measuring instrument for easy viewing. colour:Red + blue + yellow Material:Nylon + metal size:35.2cm Package Contents: 1 * air conditioner and fluoride tube 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.