1.Charging hose are for air conditioner unit charging refrigerant or pressure test.

2.One set include 3 pieces of hoses, red,yellow,blue, different of refrigerant need different of PSI hoses.

3.The highest working pressure: 4.2 MPa;

4.Highest motion differential pressure: 3.5 MPa;

5.Suitable temperature of cold media: - 30 ℃ ~ + 70 ℃ ;

6.Applicable environmental temperature: - 30 ℃ ~ + 60 ℃ ;

7.Applicable environmental relative humidity: 95% RH.