This is a tool set designed for refrigerant testing, charging, and evacuation. It can be used on automotive, commercial, and domestic air conditioning and refrigeration systems. Gauges are calibrated for R134A, R32, R410A, and R22 pressure readings. Color-coded gauges, valves, and hoses allow for easy identification and operation. Includes a hook, a joint, and three hoses (red, blue, and yellow). Manifold valves are 2-way and constructed from brass. Hose working pressure: 500 PSI Burst pressure: 2500 PSI Operating temperature range: -20C to 60C Product function: This tool set is intended for pumping and pressurizing operations during refrigeration system maintenance, including refrigerant charging and real-time system pressure monitoring. Note: Compatibility information is provided for reference only. Please verify suitability before ordering. Due to variations in production batches, product labels may vary and cannot be specified. Minor differences in appearance or color may occur and do not affect functionality. Color: As shown in image Material: Plastic and metal Package Contents: 1 x Air conditioning and refrigeration tool set Note: Lighting effects and monitor settings may cause slight color variations between the image and the actual item. Measurement tolerance: +/- 1-3 cm.