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Features: PRECISION GAUGES: Professional 3 way automotive air conditioning diagnostic manifold gauge set perfect for AC freon charging, evacuation, diagnostic check and recovery work UPGRADED DIAL: With an impact-resistant dial design, the upgraded manifold gauge set provides more accurate readings when you are filling condensate and measuring system pressure HIGH-AUALITY MATERIAL: This manifold gauge set is made with a durable aluminum body and features pure copper fittings for long-lasting use and effective rust resistance. It is equipped with a viewing window for real-time monitoring of coolant conditions and a calibration screw to ensure an accuracy of 1.6% THREE COLOR HOSE: The hose has a 4-layer thickened design and can be used with pressures up to 600 psi (burst pressure: 3000 psi). It is equipped with a leak-proof rubber ring to provide a reliable connection WIDE APPLICATION: This car gauge kit includes R410a adapter and universal bottle opener, suitable for R134a, R410a, R12, R22 refrigerants.Note: Not suitable for R134a refrigerant. Specifications: Name: Refrigerant Refilling Tool Set Material: PC+aluminum alloy+brass Refrigerant Type: R134A, R410A, R22, R404A Low Pressure Gauge Range: -30~500PSI High Pressure Gauge Range: -30~800PSI Quick Coupler: Adjustable R134A type Packing List: 1 * Guage Kit ;