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