This A/C Manifold Gauge Set is designed to test automotive air conditioning systems (using R134A refrigerant only) by comparing the "high side" and "low side" pressure reading to the vehicle manufacturer’s A/C system specifications. This A/C Manifold Gauge Set can be used to test, evacuate and fill automotive air conditioning systems. Color coding on gauges, valves and hoses to ensure correct installation Large 2-1/2 in. gauges with impact-resistant lenses: Sight glass for viewing condition of refrigerant Quick-connect fittings High pressure safety valve. Sell only to Lower 48 States Please |