OIL GUARD is a Diagnostic Device to verify the general condition of a Vehicles A/C System, simply by connecting to the high and low-pressure ports of the A/C System.
Through the OIL GUARD glass it is possible to visually inspect the presence of chemical additives such as UV Leak Detector Dye or A/C Leak Stop, as well as the oil/refrigerant gas miscibility.
It is therefore possible to evaluate the quality of the oil, and the possible presence of water or other contaminants.
The kit includes: 1 Red Refrigerant Charging Hose. 1 Blue Refrigerant Charging Hose. 1 Low-Pressure port Quick Coupler. 1 High-Pressure port Quick Coupler.