One-Way Valve 
Only allow the medium from one direction to the other direction. One end is to connect tube, the other is to connect thread
1)Access valve or joint valve for refrigerators, freezers, air conditioners and compressor units
2)Labels are also available for your choice
3)Premium quality standard guaranteed
4)Competitive and reasonable price
5)Long exporting history to America, MIDDLE EAST, and ASIA etc.
6)Unique Packing or packing according to customer specification requirement
7)We can supply according to customer's drawings or samples.