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Product Features Simplified Manifold Gauge Set This set features a 4-way manifold gauge paired with 4 color-coded hoses. Independent vacuum and refrigerant valves allow precise operation, making it suitable for both residential and commercial air conditioning service Works with Four Refrigerants This 4-way AC gauge supports pressure testing for R22, R404A, R410A, and R12. It is purpose-built for home central AC units, commercial refrigeration equipment, and the maintenance of legacy systems Clear Dual-Scale Gauges The AC manifold gauge features color-coded high- and low-pressure dials for easy reading. Calibration screws maintain ±1% accuracy, while Fahrenheit temperature scales and a sight window help assess charge level during testing High-Pressure Sealing Hoses Designed to pair with the AC gauge set, the four 5 ft heavy-duty rubber hoses are rated for 800-4000 PSI working pressure. Gasketed fittings and brass connectors help reduce leakage and avoid loosening during service Durable Metal Construction The AC manifold gauge set uses solid brass fittings and an aluminum valve body for strength and reliable sealing. Each component is tested for repeated operation in both workshop and on-site service environments