The integrated double pressure measurement systems ensures safe refrigerant handling than standard tools, with color coded hoses and tested connectors that crossing between different vehicle models Ideal for both auto repair shop technicians and car owners, this comprehensive pressure gauge set simplifies maintenance tasks from routine recharging to complex systems diagnostics Constructed with aircraft grade aluminum alloy and high pressure resistant ABS, the leak proof manifold gauge set withstands up to 300psi pressure while featuring quick connection fittings for seamless refrigerant transfer This professional car recharge supports multiple refrigerants (R22, R134a, R404, R410) with ±2psi accuracy pressure gauges for accurate low / high pressure in automotive air conditioning systems Perfect for workshop environments or mobile repair services, the portable toolkit organizes all components in a carry case for fast access during vehicle repairs, refrigerant swaps, or seasonal systems checks, Manufacturer: RGYBAO