Upgrade your automotive AC maintenance with our Complete Gauge Set, designed to meet the needs of both professional HVAC technicians and DIY enthusiasts. This comprehensive kit includes a refrigerant oxidation dual meter valve, three refrigerant oxidation pipes, high and low pressure filling connectors, new energy vehicle filling connectors, a canned refrigerant, seven fuel line disassembly tools, an automobile repair digital thermometer, a short screwdriver, a double head valve core wrench, and a spare parts box with 18 additional components. Everything is neatly organized in a heavy-duty blow-molded carrying case for easy transport and storage The color-coded hoses—blue for low pressure, red for high pressure, and yellow for charging—are designed with four reinforced layers to withstand pressures up to 800 psi. Built-in barriers ensure the purity of your refrigerant by preventing condensation and moisture contamination, making your work more efficient and reliable Our hybrid shock gauges offer the best of both worlds. The oil-filled core resists wear and shock, providing durability, while the dry dial ensures better performance in cold weather. The moisture indicator allows you to monitor your coolant’s condition in real-time, ensuring optimal performance This versatile gauge set works with a wide range of refrigerants, including R134a, R12, R22, and R502, making it ideal for various HVAC maintenance tasks. Whether you need to measure system pressure, evacuate, or refill coolant, this kit has you covered Specifications: Material: Copper + Rubber Quantity: 37 Pcs Low Pressure Meter Range: -30~500 PSI High Pressure Meter Range: -30~800 PSI Refrigerant Oxidation Pipe: 1.5 m Package Weight: 3180 g / 7.01 lb Package Size: 35.5 * 30 * 8.8 cm / 13.97 * 11.81 * 3.46 in