1. Material: plastic 2. Built-in sealing ring, effectively prevent air-conditioning refrigerant from leaking 3. Smooth and complete, the color masterbatch is saturated and clear 4. Smooth and burr-free, clear inner thread 5. Weight: about 2-3 grams 6. Low voltage size: 16.6x20.9x20 mm 7. Low pressure inner diameter: 17 mm 8. High voltage: 15.4x20.7x18.4mm 9. Inner diameter size: 13.3mm
