The relay valve is used at the end of the long line to allow the compressed air of the reservoir to quickly fill the brake air chamber as in a trailer or semi-trailer brake system.
| OEM No | 9730110000 |
| Product Name | Emergency Relay Valve |
| Brand Name | Wintop |
| Quality | High Quality,Premium |
| Material | PC,Plastic,etc. |
| Place of Origin | Zhejiang, China |
| Service | OEM,B |
| Type | Automobile Accessories |
| Car Model | Uinversal Car,Japan Car |
| MOQ | 50pcs |
