DescriptionIf you are looking for a professional and affordable Service Access Valves, then your research is over here. That's because our product can meet your need. Adopted of premium material, it is practical and durable for long time use. It is not easy to get deformed and bring you much convenience.Features-Material: copper - Made with high-quality copper material for durable and lasting use. - Knurled coupler nut design allows you to tighten with your hand easily. - Helping you to fill fluorine into your air conditioner chamber. - Exquisite workmanship, reasonable structure, professional and practical, can bring you convenience. - It is in stable characteristics, high performance and it is in great reliability, simple, easy to install.