How do the automobile rubber hoses combine with the quick couplings?
The blue fast joint with fluorine is corresponding to the pressure, and the red fast joint with fluorine is corresponding to the high voltage
Turn the rotary handle on the quick connector to the open position first;
The fluorine fast joint is aligned with the charging head on the air conditioner of the automobile, and can be connected by pressing lightly. Then the screw handle on the fast joint can be tightened reversely, so that it can be filled.
