General description A great product for refrigerant testing, easy to use and convenient to carry, can be used on all car, commercial, and domestic air conditioning and refrigeration systems. This tool set is ideal for testing, charging, and evacuating refrigerant. Technical specifications Gauge diameter: 7 cm / 2.8 inch Hose length: 90 cm Hose working pressure: 500 PSI Burst pressure: 2500 PSI Working temperature: -20℃ to 60℃ Package size: 23 * 17.5 * 9.5 cm / 9.1 * 6.9 * 3.7 inch Package weight: 1015 g / 2.2 lb Compatibility and accessories Compatible with R12, R22, R404A, and R134A refrigerants Includes 1 manifold gauge, 3 hoses (red, blue, and yellow), and 1 hook Other information Manifolds are 2-way and made of brass Gauges, valves, and hoses are color-coded for convenient use