Engine/Hose & Coupling /351241-351246 COUPLER QUICK-CONNECT BRASS

One way ball locking most ordinary type of sockets & plugs.  When these sockets and plugs are disconnected, liquid or gas inside will stop flowing automatically on the socket side.

单向滚珠锁紧大多数普通类型的插座和插头。当这些插座和插头断开时，插座一侧的液体或气体将自动停止流动。