optimal sealing, minimizing the potential for hazardous leaks during refrigeranting handling operations.【Refrigeration Oil Filtration & Identification Function】: Built-in high-density filter, effectively filtering aluminum powder and impurities in the air conditioning pipeline, restoring the purity of the refrigeration oil in the system and improving the cooling effect of the air conditioner. After 10 minutes of cleaning, close the high pressure valves of the filter and let the refrigeration oil return to the glass tube to observe the quality of the refrigeration oil.【Efficiency & Convenience in Maintenance Tasks】: Engineered with a streamlining automotive repairing processes, this multifunctional refrigerantion oil filler tool enables faster and safer servicing, supported by its sturdy construction, low activation pressure, and user-friendly design that enhances productivity on the task.【Versatile Compatibility & Easy Operation】: Designed to accommodate various vehicle models, this tool simplifies maintenance procedures with its intuitive design and nonslip brass connectors, ensuring a firm grip even when hands are greasy. Removable for cleaning, making it easier to use. Supporting multiple pressure units, it is a universal filling tool that is easy to use for both professional auto mechanics and car owners.Specifications:Name: Refrigerants Filler Material: copper + aluminum + rubberType: gauge, gauge set (optional)Item size: 273 * 45 * 45mm / 10.75 * 1.77 * 1.77inPackage size: 400 * 295 * 105mm / 15.75 * 11.61 * 4.13inPackage weight:Gauge: 462g / 1.02lbGauge set: 2280g / 5.03lbPacking List(gauge):1 * Refrigerants FillerOR Packing List(gauge set):1 * Refrigerants Filler2 * Hose1 * Set of Accessory1 * Plastics Box