Valve Open/Close Signboard 854/857

Clear, easy-to-see safety sign valve open/shut display plate.
[Features]
· Simply, one-character display indicating open or shut status.
· The plate is made of durable plastic, so will not crack when subjected to impact.
· Choose from 6 types of display content.
[Applications]
· Waterproof and durable, so it is suitable for indoor and outdoor use.